feat: add sqlserver beta resources (instance, database)

stackit/internal/services/sqlserverflexbeta/database/datasource.go

@@ -0,0 +1,150 @@
+package sqlserverflexbeta
+
+import (
+	"context"
+	"fmt"
+	"net/http"
+
+	"github.com/hashicorp/terraform-plugin-framework/datasource"
+	"github.com/hashicorp/terraform-plugin-framework/types"
+	"github.com/hashicorp/terraform-plugin-log/tflog"
+	"github.com/stackitcloud/stackit-sdk-go/core/config"
+	"tf-provider.git.onstackit.cloud/stackit-dev-tools/terraform-provider-stackitprivatepreview/stackit/internal/conversion"
+	"tf-provider.git.onstackit.cloud/stackit-dev-tools/terraform-provider-stackitprivatepreview/stackit/internal/core"
+	"tf-provider.git.onstackit.cloud/stackit-dev-tools/terraform-provider-stackitprivatepreview/stackit/internal/utils"
+
+	sqlserverflexbetaPkg "tf-provider.git.onstackit.cloud/stackit-dev-tools/terraform-provider-stackitprivatepreview/pkg_gen/sqlserverflexbeta"
+	sqlserverflexbetaGen "tf-provider.git.onstackit.cloud/stackit-dev-tools/terraform-provider-stackitprivatepreview/stackit/internal/services/sqlserverflexbeta/database/datasources_gen"
+)
+
+var _ datasource.DataSource = (*databaseDataSource)(nil)
+
+const errorPrefix = "[Sqlserverflexbeta - Database]"
+
+func NewDatabaseDataSource() datasource.DataSource {
+	return &databaseDataSource{}
+}
+
+type databaseDataSource struct {
+	client       *sqlserverflexbetaPkg.APIClient
+	providerData core.ProviderData
+}
+
+func (d *databaseDataSource) Metadata(_ context.Context, req datasource.MetadataRequest, resp *datasource.MetadataResponse) {
+	resp.TypeName = req.ProviderTypeName + "_sqlserverflexbeta_database"
+}
+
+func (d *databaseDataSource) Schema(ctx context.Context, _ datasource.SchemaRequest, resp *datasource.SchemaResponse) {
+	resp.Schema = sqlserverflexbetaGen.DatabaseDataSourceSchema(ctx)
+}
+
+// Configure adds the provider configured client to the data source.
+func (d *databaseDataSource) Configure(
+	ctx context.Context,
+	req datasource.ConfigureRequest,
+	resp *datasource.ConfigureResponse,
+) {
+	var ok bool
+	d.providerData, ok = conversion.ParseProviderData(ctx, req.ProviderData, &resp.Diagnostics)
+	if !ok {
+		return
+	}
+
+	apiClientConfigOptions := []config.ConfigurationOption{
+		config.WithCustomAuth(d.providerData.RoundTripper),
+		utils.UserAgentConfigOption(d.providerData.Version),
+	}
+	if d.providerData.SQLServerFlexCustomEndpoint != "" {
+		apiClientConfigOptions = append(
+			apiClientConfigOptions,
+			config.WithEndpoint(d.providerData.SQLServerFlexCustomEndpoint),
+		)
+	} else {
+		apiClientConfigOptions = append(
+			apiClientConfigOptions,
+			config.WithRegion(d.providerData.GetRegion()),
+		)
+	}
+	apiClient, err := sqlserverflexbetaPkg.NewAPIClient(apiClientConfigOptions...)
+	if err != nil {
+		resp.Diagnostics.AddError(
+			"Error configuring API client",
+			fmt.Sprintf(
+				"Configuring client: %v. This is an error related to the provider configuration, not to the resource configuration",
+				err,
+			),
+		)
+		return
+	}
+	d.client = apiClient
+	tflog.Info(ctx, fmt.Sprintf("%s client configured", errorPrefix))
+}
+
+func (d *databaseDataSource) Read(ctx context.Context, req datasource.ReadRequest, resp *datasource.ReadResponse) {
+	var data sqlserverflexbetaGen.DatabaseModel
+	readErr := "Read DB error"
+
+	// Read Terraform configuration data into the model
+	resp.Diagnostics.Append(req.Config.Get(ctx, &data)...)
+
+	if resp.Diagnostics.HasError() {
+		return
+	}
+
+	ctx = core.InitProviderContext(ctx)
+
+	projectId := data.ProjectId.ValueString()
+	region := d.providerData.GetRegionWithOverride(data.Region)
+	instanceId := data.InstanceId.ValueString()
+
+	ctx = tflog.SetField(ctx, "project_id", projectId)
+	ctx = tflog.SetField(ctx, "region", region)
+	ctx = tflog.SetField(ctx, "instance_id", instanceId)
+
+	databaseName := data.DatabaseName.ValueString()
+
+	databaseResp, err := d.client.GetDatabaseRequest(ctx, projectId, region, instanceId, databaseName).Execute()
+	if err != nil {
+		utils.LogError(
+			ctx,
+			&resp.Diagnostics,
+			err,
+			"Reading database",
+			fmt.Sprintf("database with %q does not exist in project %q.", databaseName, projectId),
+			map[int]string{
+				http.StatusForbidden: fmt.Sprintf("Project with %q not found or forbidden access", projectId),
+			},
+		)
+		resp.State.RemoveResource(ctx)
+		return
+	}
+
+	ctx = core.LogResponse(ctx)
+
+	dbId, ok := databaseResp.GetIdOk()
+	if !ok {
+		core.LogAndAddError(
+			ctx,
+			&resp.Diagnostics,
+			readErr,
+			"Database creation waiting: returned id is nil",
+		)
+		return
+	}
+	data.Id = types.Int64Value(dbId)
+
+	owner, ok := databaseResp.GetOwnerOk()
+	if !ok {
+		core.LogAndAddError(
+			ctx,
+			&resp.Diagnostics,
+			readErr,
+			"Database creation waiting: returned owner is nil",
+		)
+		return
+	}
+	data.Owner = types.StringValue(owner)
+
+	// Save data into Terraform state
+	resp.Diagnostics.Append(resp.State.Set(ctx, &data)...)
+}

stackit/internal/services/sqlserverflexbeta/database/datasources_gen/database_data_source_gen.go

@@ -0,0 +1,82 @@
+// Code generated by terraform-plugin-framework-generator DO NOT EDIT.
+
+package sqlserverflexbeta
+
+import (
+	"context"
+	"github.com/hashicorp/terraform-plugin-framework-validators/stringvalidator"
+	"github.com/hashicorp/terraform-plugin-framework/schema/validator"
+	"github.com/hashicorp/terraform-plugin-framework/types"
+
+	"github.com/hashicorp/terraform-plugin-framework/datasource/schema"
+)
+
+func DatabaseDataSourceSchema(ctx context.Context) schema.Schema {
+	return schema.Schema{
+		Attributes: map[string]schema.Attribute{
+			"collation_name": schema.StringAttribute{
+				Computed:            true,
+				Description:         "The collation of the database. This database collation should match the *collation_name* of one of the collations given by the **Get database collation list** endpoint.",
+				MarkdownDescription: "The collation of the database. This database collation should match the *collation_name* of one of the collations given by the **Get database collation list** endpoint.",
+			},
+			"compatibility_level": schema.Int64Attribute{
+				Computed:            true,
+				Description:         "CompatibilityLevel of the Database.",
+				MarkdownDescription: "CompatibilityLevel of the Database.",
+			},
+			"database_name": schema.StringAttribute{
+				Required:            true,
+				Description:         "The name of the database.",
+				MarkdownDescription: "The name of the database.",
+			},
+			"id": schema.Int64Attribute{
+				Computed:            true,
+				Description:         "The id of the database.",
+				MarkdownDescription: "The id of the database.",
+			},
+			"instance_id": schema.StringAttribute{
+				Required:            true,
+				Description:         "The ID of the instance.",
+				MarkdownDescription: "The ID of the instance.",
+			},
+			"name": schema.StringAttribute{
+				Computed:            true,
+				Description:         "The name of the database.",
+				MarkdownDescription: "The name of the database.",
+			},
+			"owner": schema.StringAttribute{
+				Computed:            true,
+				Description:         "The owner of the database.",
+				MarkdownDescription: "The owner of the database.",
+			},
+			"project_id": schema.StringAttribute{
+				Required:            true,
+				Description:         "The STACKIT project ID.",
+				MarkdownDescription: "The STACKIT project ID.",
+			},
+			"region": schema.StringAttribute{
+				Optional:            true,
+				Computed:            true,
+				Description:         "The region which should be addressed",
+				MarkdownDescription: "The region which should be addressed",
+				Validators: []validator.String{
+					stringvalidator.OneOf(
+						"eu01",
+					),
+				},
+			},
+		},
+	}
+}
+
+type DatabaseModel struct {
+	CollationName      types.String `tfsdk:"collation_name"`
+	CompatibilityLevel types.Int64  `tfsdk:"compatibility_level"`
+	DatabaseName       types.String `tfsdk:"database_name"`
+	Id                 types.Int64  `tfsdk:"id"`
+	InstanceId         types.String `tfsdk:"instance_id"`
+	Name               types.String `tfsdk:"name"`
+	Owner              types.String `tfsdk:"owner"`
+	ProjectId          types.String `tfsdk:"project_id"`
+	Region             types.String `tfsdk:"region"`
+}

stackit/internal/services/sqlserverflexbeta/database/resource.go

@@ -0,0 +1,426 @@
+package sqlserverflexbeta
+
+import (
+	"context"
+	"fmt"
+	"strings"
+	"time"
+
+	"github.com/hashicorp/terraform-plugin-framework/path"
+	"github.com/hashicorp/terraform-plugin-framework/resource"
+	"github.com/hashicorp/terraform-plugin-framework/resource/identityschema"
+	"github.com/hashicorp/terraform-plugin-framework/types"
+	"github.com/hashicorp/terraform-plugin-log/tflog"
+	"github.com/stackitcloud/stackit-sdk-go/core/config"
+	"tf-provider.git.onstackit.cloud/stackit-dev-tools/terraform-provider-stackitprivatepreview/stackit/internal/conversion"
+	wait "tf-provider.git.onstackit.cloud/stackit-dev-tools/terraform-provider-stackitprivatepreview/stackit/internal/wait/sqlserverflexbeta"
+
+	"tf-provider.git.onstackit.cloud/stackit-dev-tools/terraform-provider-stackitprivatepreview/pkg_gen/sqlserverflexbeta"
+
+	"tf-provider.git.onstackit.cloud/stackit-dev-tools/terraform-provider-stackitprivatepreview/stackit/internal/core"
+	"tf-provider.git.onstackit.cloud/stackit-dev-tools/terraform-provider-stackitprivatepreview/stackit/internal/utils"
+
+	sqlserverflexbetaResGen "tf-provider.git.onstackit.cloud/stackit-dev-tools/terraform-provider-stackitprivatepreview/stackit/internal/services/sqlserverflexbeta/database/resources_gen"
+)
+
+var (
+	_ resource.Resource                = &databaseResource{}
+	_ resource.ResourceWithConfigure   = &databaseResource{}
+	_ resource.ResourceWithImportState = &databaseResource{}
+	_ resource.ResourceWithModifyPlan  = &databaseResource{}
+	_ resource.ResourceWithIdentity    = &databaseResource{}
+)
+
+func NewDatabaseResource() resource.Resource {
+	return &databaseResource{}
+}
+
+type databaseResource struct {
+	client       *sqlserverflexbeta.APIClient
+	providerData core.ProviderData
+}
+
+type DatabaseResourceIdentityModel struct {
+	ProjectID    types.String `tfsdk:"project_id"`
+	Region       types.String `tfsdk:"region"`
+	InstanceID   types.String `tfsdk:"instance_id"`
+	DatabaseName types.String `tfsdk:"database_name"`
+}
+
+func (r *databaseResource) Metadata(ctx context.Context, req resource.MetadataRequest, resp *resource.MetadataResponse) {
+	resp.TypeName = req.ProviderTypeName + "_sqlserverflexbeta_database"
+}
+
+func (r *databaseResource) Schema(ctx context.Context, req resource.SchemaRequest, resp *resource.SchemaResponse) {
+	resp.Schema = sqlserverflexbetaResGen.DatabaseResourceSchema(ctx)
+}
+
+func (r *databaseResource) IdentitySchema(_ context.Context, _ resource.IdentitySchemaRequest, resp *resource.IdentitySchemaResponse) {
+	resp.IdentitySchema = identityschema.Schema{
+		Attributes: map[string]identityschema.Attribute{
+			"project_id": identityschema.StringAttribute{
+				RequiredForImport: true, // must be set during import by the practitioner
+			},
+			"region": identityschema.StringAttribute{
+				RequiredForImport: true, // can be defaulted by the provider configuration
+			},
+			"instance_id": identityschema.StringAttribute{
+				RequiredForImport: true, // can be defaulted by the provider configuration
+			},
+			"database_name": identityschema.StringAttribute{
+				RequiredForImport: true, // can be defaulted by the provider configuration
+			},
+		},
+	}
+}
+
+// Configure adds the provider configured client to the resource.
+func (r *databaseResource) Configure(
+	ctx context.Context,
+	req resource.ConfigureRequest,
+	resp *resource.ConfigureResponse,
+) {
+	var ok bool
+	r.providerData, ok = conversion.ParseProviderData(ctx, req.ProviderData, &resp.Diagnostics)
+	if !ok {
+		return
+	}
+
+	apiClientConfigOptions := []config.ConfigurationOption{
+		config.WithCustomAuth(r.providerData.RoundTripper),
+		utils.UserAgentConfigOption(r.providerData.Version),
+	}
+	if r.providerData.SQLServerFlexCustomEndpoint != "" {
+		apiClientConfigOptions = append(apiClientConfigOptions, config.WithEndpoint(r.providerData.SQLServerFlexCustomEndpoint))
+	} else {
+		apiClientConfigOptions = append(apiClientConfigOptions, config.WithRegion(r.providerData.GetRegion()))
+	}
+	apiClient, err := sqlserverflexbeta.NewAPIClient(apiClientConfigOptions...)
+	if err != nil {
+		resp.Diagnostics.AddError(
+			"Error configuring API client",
+			fmt.Sprintf(
+				"Configuring client: %v. This is an error related to the provider configuration, not to the resource configuration",
+				err,
+			),
+		)
+		return
+	}
+	r.client = apiClient
+	tflog.Info(ctx, "sqlserverflexbeta.Database client configured")
+}
+
+func (r *databaseResource) Create(ctx context.Context, req resource.CreateRequest, resp *resource.CreateResponse) {
+	var data sqlserverflexbetaResGen.DatabaseModel
+	createErr := "DB create error"
+
+	// Read Terraform plan data into the model
+	resp.Diagnostics.Append(req.Plan.Get(ctx, &data)...)
+
+	if resp.Diagnostics.HasError() {
+		return
+	}
+
+	// Read identity data
+	var identityData DatabaseResourceIdentityModel
+	resp.Diagnostics.Append(req.Identity.Get(ctx, &identityData)...)
+	if resp.Diagnostics.HasError() {
+		return
+	}
+
+	ctx = core.InitProviderContext(ctx)
+
+	projectId := identityData.ProjectID.ValueString()
+	region := identityData.Region.ValueString()
+	instanceId := identityData.InstanceID.ValueString()
+	ctx = tflog.SetField(ctx, "project_id", projectId)
+	ctx = tflog.SetField(ctx, "region", region)
+	ctx = tflog.SetField(ctx, "instance_id", instanceId)
+
+	databaseName := identityData.DatabaseName.ValueString()
+	ctx = tflog.SetField(ctx, "database_name", databaseName)
+
+	payLoad := sqlserverflexbeta.CreateDatabaseRequestPayload{
+		Collation:     data.Collation.ValueStringPointer(),
+		Compatibility: data.Compatibility.ValueInt64Pointer(),
+		Name:          data.Name.ValueStringPointer(),
+		Owner:         data.Owner.ValueStringPointer(),
+	}
+
+	createResp, err := r.client.CreateDatabaseRequest(ctx, projectId, region, instanceId).
+		CreateDatabaseRequestPayload(payLoad).
+		Execute()
+	if err != nil {
+		core.LogAndAddError(
+			ctx,
+			&resp.Diagnostics,
+			createErr,
+			fmt.Sprintf("Calling API: %v", err),
+		)
+		return
+	}
+
+	ctx = core.LogResponse(ctx)
+	createId, ok := createResp.GetIdOk()
+	if !ok {
+		core.LogAndAddError(
+			ctx,
+			&resp.Diagnostics,
+			createErr,
+			fmt.Sprintf("Calling API: %v", err),
+		)
+	}
+
+	waitResp, err := wait.CreateDatabaseWaitHandler(
+		ctx,
+		r.client,
+		projectId,
+		instanceId,
+		region,
+		databaseName,
+	).SetSleepBeforeWait(
+		30 * time.Second,
+	).SetTimeout(
+		15 * time.Minute,
+	).WaitWithContext(ctx)
+	if err != nil {
+		core.LogAndAddError(
+			ctx,
+			&resp.Diagnostics,
+			createErr,
+			fmt.Sprintf("Database creation waiting: %v", err),
+		)
+		return
+	}
+
+	if waitResp.Id == nil {
+		core.LogAndAddError(
+			ctx,
+			&resp.Diagnostics,
+			createErr,
+			"Database creation waiting: returned id is nil",
+		)
+		return
+	}
+
+	if *waitResp.Id != createId {
+		core.LogAndAddError(
+			ctx,
+			&resp.Diagnostics,
+			createErr,
+			"Database creation waiting: returned id is different",
+		)
+		return
+	}
+
+	if *waitResp.Owner != data.Owner.ValueString() {
+		core.LogAndAddError(
+			ctx,
+			&resp.Diagnostics,
+			createErr,
+			"Database creation waiting: returned owner is different",
+		)
+		return
+	}
+
+	if *waitResp.Name != data.Name.ValueString() {
+		core.LogAndAddError(
+			ctx,
+			&resp.Diagnostics,
+			createErr,
+			"Database creation waiting: returned name is different",
+		)
+		return
+	}
+
+	data.Id = types.Int64PointerValue(waitResp.Id)
+	data.Name = types.StringPointerValue(waitResp.Name)
+
+	// Save data into Terraform state
+	resp.Diagnostics.Append(resp.State.Set(ctx, &data)...)
+
+	tflog.Info(ctx, "sqlserverflexbeta.Database created")
+}
+
+func (r *databaseResource) Read(ctx context.Context, req resource.ReadRequest, resp *resource.ReadResponse) {
+	var data sqlserverflexbetaResGen.DatabaseModel
+
+	// Read Terraform prior state data into the model
+	resp.Diagnostics.Append(req.State.Get(ctx, &data)...)
+	if resp.Diagnostics.HasError() {
+		return
+	}
+
+	// Read identity data
+	var identityData DatabaseResourceIdentityModel
+	resp.Diagnostics.Append(req.Identity.Get(ctx, &identityData)...)
+	if resp.Diagnostics.HasError() {
+		return
+	}
+
+	ctx = core.InitProviderContext(ctx)
+
+	projectId := identityData.ProjectID.ValueString()
+	region := identityData.Region.ValueString()
+	ctx = tflog.SetField(ctx, "project_id", projectId)
+	ctx = tflog.SetField(ctx, "region", region)
+
+	// Todo: Read API call logic
+
+	// Save updated data into Terraform state
+	resp.Diagnostics.Append(resp.State.Set(ctx, &data)...)
+
+	// TODO: Set data returned by API in identity
+	identity := DatabaseResourceIdentityModel{
+		ProjectID: types.StringValue(projectId),
+		Region:    types.StringValue(region),
+		// InstanceID: types.StringValue(instanceId),
+	}
+	resp.Diagnostics.Append(resp.Identity.Set(ctx, identity)...)
+	if resp.Diagnostics.HasError() {
+		return
+	}
+
+	tflog.Info(ctx, "sqlserverflexbeta.Database read")
+}
+
+func (r *databaseResource) Update(ctx context.Context, req resource.UpdateRequest, resp *resource.UpdateResponse) {
+	var data sqlserverflexbetaResGen.DatabaseModel
+
+	// Read Terraform prior state data into the model
+	resp.Diagnostics.Append(req.State.Get(ctx, &data)...)
+	if resp.Diagnostics.HasError() {
+		return
+	}
+
+	// Read identity data
+	var identityData DatabaseResourceIdentityModel
+	resp.Diagnostics.Append(req.Identity.Get(ctx, &identityData)...)
+	if resp.Diagnostics.HasError() {
+		return
+	}
+
+	ctx = core.InitProviderContext(ctx)
+
+	projectId := identityData.ProjectID.ValueString()
+	region := identityData.Region.ValueString()
+	ctx = tflog.SetField(ctx, "project_id", projectId)
+	ctx = tflog.SetField(ctx, "region", region)
+
+	// Todo: Update API call logic
+
+	// Save updated data into Terraform state
+	resp.Diagnostics.Append(resp.State.Set(ctx, &data)...)
+
+	tflog.Info(ctx, "sqlserverflexbeta.Database updated")
+}
+
+func (r *databaseResource) Delete(ctx context.Context, req resource.DeleteRequest, resp *resource.DeleteResponse) {
+	var data sqlserverflexbetaResGen.DatabaseModel
+
+	// Read Terraform prior state data into the model
+	resp.Diagnostics.Append(req.State.Get(ctx, &data)...)
+	if resp.Diagnostics.HasError() {
+		return
+	}
+
+	// Read identity data
+	var identityData DatabaseResourceIdentityModel
+	resp.Diagnostics.Append(req.Identity.Get(ctx, &identityData)...)
+	if resp.Diagnostics.HasError() {
+		return
+	}
+
+	ctx = core.InitProviderContext(ctx)
+
+	projectId := identityData.ProjectID.ValueString()
+	region := identityData.Region.ValueString()
+	ctx = tflog.SetField(ctx, "project_id", projectId)
+	ctx = tflog.SetField(ctx, "region", region)
+
+	// Todo: Delete API call logic
+
+	tflog.Info(ctx, "sqlserverflexbeta.Database deleted")
+}
+
+// ModifyPlan implements resource.ResourceWithModifyPlan.
+// Use the modifier to set the effective region in the current plan.
+func (r *databaseResource) ModifyPlan(
+	ctx context.Context,
+	req resource.ModifyPlanRequest,
+	resp *resource.ModifyPlanResponse,
+) { // nolint:gocritic // function signature required by Terraform
+	var configModel sqlserverflexbetaResGen.DatabaseModel
+	// skip initial empty configuration to avoid follow-up errors
+	if req.Config.Raw.IsNull() {
+		return
+	}
+	resp.Diagnostics.Append(req.Config.Get(ctx, &configModel)...)
+	if resp.Diagnostics.HasError() {
+		return
+	}
+
+	var planModel sqlserverflexbetaResGen.DatabaseModel
+	resp.Diagnostics.Append(req.Plan.Get(ctx, &planModel)...)
+	if resp.Diagnostics.HasError() {
+		return
+	}
+
+	utils.AdaptRegion(ctx, configModel.Region, &planModel.Region, r.providerData.GetRegion(), resp)
+	if resp.Diagnostics.HasError() {
+		return
+	}
+
+	var identityModel DatabaseResourceIdentityModel
+	identityModel.ProjectID = planModel.ProjectId
+	identityModel.Region = planModel.Region
+	// TODO: complete
+	//if !planModel.InstanceId.IsNull() && !planModel.InstanceId.IsUnknown() {
+	//	identityModel.InstanceID = planModel.InstanceId
+	//}
+
+	resp.Diagnostics.Append(resp.Identity.Set(ctx, identityModel)...)
+	if resp.Diagnostics.HasError() {
+		return
+	}
+
+	resp.Diagnostics.Append(resp.Plan.Set(ctx, planModel)...)
+	if resp.Diagnostics.HasError() {
+		return
+	}
+}
+
+// ImportState imports a resource into the Terraform state on success.
+// The expected format of the resource import identifier is: project_id,zone_id,record_set_id
+func (r *databaseResource) ImportState(
+	ctx context.Context,
+	req resource.ImportStateRequest,
+	resp *resource.ImportStateResponse,
+) {
+	idParts := strings.Split(req.ID, core.Separator)
+
+	// Todo: Import logic
+	if len(idParts) < 2 || idParts[0] == "" || idParts[1] == "" {
+		core.LogAndAddError(
+			ctx, &resp.Diagnostics,
+			"Error importing database",
+			fmt.Sprintf(
+				"Expected import identifier with format [project_id],[region],..., got %q",
+				req.ID,
+			),
+		)
+		return
+	}
+
+	resp.Diagnostics.Append(resp.State.SetAttribute(ctx, path.Root("project_id"), idParts[0])...)
+	resp.Diagnostics.Append(resp.State.SetAttribute(ctx, path.Root("region"), idParts[1])...)
+	// ... more ...
+
+	core.LogAndAddWarning(
+		ctx,
+		&resp.Diagnostics,
+		"Sqlserverflexbeta database imported with empty password",
+		"The database password is not imported as it is only available upon creation of a new database. The password field will be empty.",
+	)
+	tflog.Info(ctx, "Sqlserverflexbeta database state imported")
+}

stackit/internal/services/sqlserverflexbeta/database/resources_gen/database_resource_gen.go

@@ -0,0 +1,99 @@
+// Code generated by terraform-plugin-framework-generator DO NOT EDIT.
+
+package sqlserverflexbeta
+
+import (
+	"context"
+	"github.com/hashicorp/terraform-plugin-framework-validators/stringvalidator"
+	"github.com/hashicorp/terraform-plugin-framework/schema/validator"
+	"github.com/hashicorp/terraform-plugin-framework/types"
+
+	"github.com/hashicorp/terraform-plugin-framework/resource/schema"
+)
+
+func DatabaseResourceSchema(ctx context.Context) schema.Schema {
+	return schema.Schema{
+		Attributes: map[string]schema.Attribute{
+			"collation": schema.StringAttribute{
+				Optional:            true,
+				Computed:            true,
+				Description:         "The collation of the database. This database collation should match the *collation_name* of one of the collations given by the **Get database collation list** endpoint.",
+				MarkdownDescription: "The collation of the database. This database collation should match the *collation_name* of one of the collations given by the **Get database collation list** endpoint.",
+			},
+			"collation_name": schema.StringAttribute{
+				Computed:            true,
+				Description:         "The collation of the database. This database collation should match the *collation_name* of one of the collations given by the **Get database collation list** endpoint.",
+				MarkdownDescription: "The collation of the database. This database collation should match the *collation_name* of one of the collations given by the **Get database collation list** endpoint.",
+			},
+			"compatibility": schema.Int64Attribute{
+				Optional:            true,
+				Computed:            true,
+				Description:         "CompatibilityLevel of the Database.",
+				MarkdownDescription: "CompatibilityLevel of the Database.",
+			},
+			"compatibility_level": schema.Int64Attribute{
+				Computed:            true,
+				Description:         "CompatibilityLevel of the Database.",
+				MarkdownDescription: "CompatibilityLevel of the Database.",
+			},
+			"database_name": schema.StringAttribute{
+				Optional:            true,
+				Computed:            true,
+				Description:         "The name of the database.",
+				MarkdownDescription: "The name of the database.",
+			},
+			"id": schema.Int64Attribute{
+				Computed:            true,
+				Description:         "The id of the database.",
+				MarkdownDescription: "The id of the database.",
+			},
+			"instance_id": schema.StringAttribute{
+				Optional:            true,
+				Computed:            true,
+				Description:         "The ID of the instance.",
+				MarkdownDescription: "The ID of the instance.",
+			},
+			"name": schema.StringAttribute{
+				Required:            true,
+				Description:         "The name of the database.",
+				MarkdownDescription: "The name of the database.",
+			},
+			"owner": schema.StringAttribute{
+				Required:            true,
+				Description:         "The owner of the database.",
+				MarkdownDescription: "The owner of the database.",
+			},
+			"project_id": schema.StringAttribute{
+				Optional:            true,
+				Computed:            true,
+				Description:         "The STACKIT project ID.",
+				MarkdownDescription: "The STACKIT project ID.",
+			},
+			"region": schema.StringAttribute{
+				Optional:            true,
+				Computed:            true,
+				Description:         "The region which should be addressed",
+				MarkdownDescription: "The region which should be addressed",
+				Validators: []validator.String{
+					stringvalidator.OneOf(
+						"eu01",
+					),
+				},
+			},
+		},
+	}
+}
+
+type DatabaseModel struct {
+	Collation          types.String `tfsdk:"collation"`
+	CollationName      types.String `tfsdk:"collation_name"`
+	Compatibility      types.Int64  `tfsdk:"compatibility"`
+	CompatibilityLevel types.Int64  `tfsdk:"compatibility_level"`
+	DatabaseName       types.String `tfsdk:"database_name"`
+	Id                 types.Int64  `tfsdk:"id"`
+	InstanceId         types.String `tfsdk:"instance_id"`
+	Name               types.String `tfsdk:"name"`
+	Owner              types.String `tfsdk:"owner"`
+	ProjectId          types.String `tfsdk:"project_id"`
+	Region             types.String `tfsdk:"region"`
+}

stackit/internal/services/sqlserverflexbeta/flavor/datasource.go

@@ -0,0 +1,335 @@
+package sqlserverFlexBetaFlavor
+
+import (
+	"context"
+	"fmt"
+
+	"github.com/hashicorp/terraform-plugin-framework/attr"
+	"github.com/hashicorp/terraform-plugin-framework/datasource"
+	"github.com/hashicorp/terraform-plugin-framework/datasource/schema"
+	"github.com/hashicorp/terraform-plugin-framework/types"
+	"github.com/hashicorp/terraform-plugin-framework/types/basetypes"
+	"github.com/hashicorp/terraform-plugin-log/tflog"
+	"github.com/stackitcloud/stackit-sdk-go/core/config"
+
+	"tf-provider.git.onstackit.cloud/stackit-dev-tools/terraform-provider-stackitprivatepreview/stackit/internal/conversion"
+	"tf-provider.git.onstackit.cloud/stackit-dev-tools/terraform-provider-stackitprivatepreview/stackit/internal/core"
+	"tf-provider.git.onstackit.cloud/stackit-dev-tools/terraform-provider-stackitprivatepreview/stackit/internal/utils"
+
+	sqlserverflexbetaPkg "tf-provider.git.onstackit.cloud/stackit-dev-tools/terraform-provider-stackitprivatepreview/pkg_gen/sqlserverflexbeta"
+	sqlserverflexbetaGen "tf-provider.git.onstackit.cloud/stackit-dev-tools/terraform-provider-stackitprivatepreview/stackit/internal/services/sqlserverflexbeta/flavor/datasources_gen"
+)
+
+// Ensure the implementation satisfies the expected interfaces.
+var (
+	_ datasource.DataSource              = &flavorDataSource{}
+	_ datasource.DataSourceWithConfigure = &flavorDataSource{}
+)
+
+type FlavorModel struct {
+	ProjectId      types.String `tfsdk:"project_id"`
+	Region         types.String `tfsdk:"region"`
+	StorageClass   types.String `tfsdk:"storage_class"`
+	Cpu            types.Int64  `tfsdk:"cpu"`
+	Description    types.String `tfsdk:"description"`
+	Id             types.String `tfsdk:"id"`
+	FlavorId       types.String `tfsdk:"flavor_id"`
+	MaxGb          types.Int64  `tfsdk:"max_gb"`
+	Memory         types.Int64  `tfsdk:"ram"`
+	MinGb          types.Int64  `tfsdk:"min_gb"`
+	NodeType       types.String `tfsdk:"node_type"`
+	StorageClasses types.List   `tfsdk:"storage_classes"`
+}
+
+// NewFlavorDataSource is a helper function to simplify the provider implementation.
+func NewFlavorDataSource() datasource.DataSource {
+	return &flavorDataSource{}
+}
+
+// flavorDataSource is the data source implementation.
+type flavorDataSource struct {
+	client       *sqlserverflexbetaPkg.APIClient
+	providerData core.ProviderData
+}
+
+// Metadata returns the data source type name.
+func (r *flavorDataSource) Metadata(_ context.Context, req datasource.MetadataRequest, resp *datasource.MetadataResponse) {
+	resp.TypeName = req.ProviderTypeName + "_sqlserverflexbeta_flavor"
+}
+
+// Configure adds the provider configured client to the data source.
+func (r *flavorDataSource) Configure(ctx context.Context, req datasource.ConfigureRequest, resp *datasource.ConfigureResponse) {
+	var ok bool
+	r.providerData, ok = conversion.ParseProviderData(ctx, req.ProviderData, &resp.Diagnostics)
+	if !ok {
+		return
+	}
+
+	apiClientConfigOptions := []config.ConfigurationOption{
+		config.WithCustomAuth(r.providerData.RoundTripper),
+		utils.UserAgentConfigOption(r.providerData.Version),
+	}
+	if r.providerData.SQLServerFlexCustomEndpoint != "" {
+		apiClientConfigOptions = append(
+			apiClientConfigOptions,
+			config.WithEndpoint(r.providerData.SQLServerFlexCustomEndpoint),
+		)
+	} else {
+		apiClientConfigOptions = append(
+			apiClientConfigOptions,
+			config.WithRegion(r.providerData.GetRegion()),
+		)
+	}
+	apiClient, err := sqlserverflexbetaPkg.NewAPIClient(apiClientConfigOptions...)
+	if err != nil {
+		resp.Diagnostics.AddError(
+			"Error configuring API client",
+			fmt.Sprintf(
+				"Configuring client: %v. This is an error related to the provider configuration, not to the resource configuration",
+				err,
+			),
+		)
+		return
+	}
+	r.client = apiClient
+	tflog.Info(ctx, "Postgres Flex instance client configured")
+}
+
+func (r *flavorDataSource) Schema(ctx context.Context, _ datasource.SchemaRequest, resp *datasource.SchemaResponse) {
+	resp.Schema = schema.Schema{
+		Attributes: map[string]schema.Attribute{
+			"cpu": schema.Int64Attribute{
+				Computed:            true,
+				Description:         "The cpu count of the instance.",
+				MarkdownDescription: "The cpu count of the instance.",
+			},
+			"description": schema.StringAttribute{
+				Computed:            true,
+				Description:         "The flavor description.",
+				MarkdownDescription: "The flavor description.",
+			},
+			"id": schema.StringAttribute{
+				Computed:            true,
+				Description:         "The id of the instance flavor.",
+				MarkdownDescription: "The id of the instance flavor.",
+			},
+			"max_gb": schema.Int64Attribute{
+				Computed:            true,
+				Description:         "maximum storage which can be ordered for the flavor in Gigabyte.",
+				MarkdownDescription: "maximum storage which can be ordered for the flavor in Gigabyte.",
+			},
+			"memory": schema.Int64Attribute{
+				Computed:            true,
+				Description:         "The memory of the instance in Gibibyte.",
+				MarkdownDescription: "The memory of the instance in Gibibyte.",
+			},
+			"min_gb": schema.Int64Attribute{
+				Computed:            true,
+				Description:         "minimum storage which is required to order in Gigabyte.",
+				MarkdownDescription: "minimum storage which is required to order in Gigabyte.",
+			},
+			"node_type": schema.StringAttribute{
+				Computed:            true,
+				Description:         "defines the nodeType it can be either single or HA",
+				MarkdownDescription: "defines the nodeType it can be either single or HA",
+			},
+			"storage_classes": schema.ListNestedAttribute{
+				NestedObject: schema.NestedAttributeObject{
+					Attributes: map[string]schema.Attribute{
+						"class": schema.StringAttribute{
+							Computed: true,
+						},
+						"max_io_per_sec": schema.Int64Attribute{
+							Computed: true,
+						},
+						"max_through_in_mb": schema.Int64Attribute{
+							Computed: true,
+						},
+					},
+					CustomType: sqlserverflexbetaGen.StorageClassesType{
+						ObjectType: types.ObjectType{
+							AttrTypes: sqlserverflexbetaGen.StorageClassesValue{}.AttributeTypes(ctx),
+						},
+					},
+				},
+				Computed:            true,
+				Description:         "maximum storage which can be ordered for the flavor in Gigabyte.",
+				MarkdownDescription: "maximum storage which can be ordered for the flavor in Gigabyte.",
+			},
+		},
+		//Attributes: map[string]schema.Attribute{
+		//	"project_id": schema.StringAttribute{
+		//		Required:            true,
+		//		Description:         "The cpu count of the instance.",
+		//		MarkdownDescription: "The cpu count of the instance.",
+		//	},
+		//	"region": schema.StringAttribute{
+		//		Required:            true,
+		//		Description:         "The flavor description.",
+		//		MarkdownDescription: "The flavor description.",
+		//	},
+		//	"cpu": schema.Int64Attribute{
+		//		Required:            true,
+		//		Description:         "The cpu count of the instance.",
+		//		MarkdownDescription: "The cpu count of the instance.",
+		//	},
+		//	"ram": schema.Int64Attribute{
+		//		Required:            true,
+		//		Description:         "The memory of the instance in Gibibyte.",
+		//		MarkdownDescription: "The memory of the instance in Gibibyte.",
+		//	},
+		//	"storage_class": schema.StringAttribute{
+		//		Required:            true,
+		//		Description:         "The memory of the instance in Gibibyte.",
+		//		MarkdownDescription: "The memory of the instance in Gibibyte.",
+		//	},
+		//	"description": schema.StringAttribute{
+		//		Computed:            true,
+		//		Description:         "The flavor description.",
+		//		MarkdownDescription: "The flavor description.",
+		//	},
+		//	"id": schema.StringAttribute{
+		//		Computed:            true,
+		//		Description:         "The terraform id of the instance flavor.",
+		//		MarkdownDescription: "The terraform id of the instance flavor.",
+		//	},
+		//	"flavor_id": schema.StringAttribute{
+		//		Computed:            true,
+		//		Description:         "The flavor id of the instance flavor.",
+		//		MarkdownDescription: "The flavor id of the instance flavor.",
+		//	},
+		//	"max_gb": schema.Int64Attribute{
+		//		Computed:            true,
+		//		Description:         "maximum storage which can be ordered for the flavor in Gigabyte.",
+		//		MarkdownDescription: "maximum storage which can be ordered for the flavor in Gigabyte.",
+		//	},
+		//	"min_gb": schema.Int64Attribute{
+		//		Computed:            true,
+		//		Description:         "minimum storage which is required to order in Gigabyte.",
+		//		MarkdownDescription: "minimum storage which is required to order in Gigabyte.",
+		//	},
+		//	"node_type": schema.StringAttribute{
+		//		Required:            true,
+		//		Description:         "defines the nodeType it can be either single or replica",
+		//		MarkdownDescription: "defines the nodeType it can be either single or replica",
+		//	},
+		//	"storage_classes": schema.ListNestedAttribute{
+		//		Computed: true,
+		//		NestedObject: schema.NestedAttributeObject{
+		//			Attributes: map[string]schema.Attribute{
+		//				"class": schema.StringAttribute{
+		//					Computed: true,
+		//				},
+		//				"max_io_per_sec": schema.Int64Attribute{
+		//					Computed: true,
+		//				},
+		//				"max_through_in_mb": schema.Int64Attribute{
+		//					Computed: true,
+		//				},
+		//			},
+		//			CustomType: sqlserverflexalphaGen.StorageClassesType{
+		//				ObjectType: types.ObjectType{
+		//					AttrTypes: sqlserverflexalphaGen.StorageClassesValue{}.AttributeTypes(ctx),
+		//				},
+		//			},
+		//		},
+		//	},
+		//},
+	}
+}
+
+func (r *flavorDataSource) Read(ctx context.Context, req datasource.ReadRequest, resp *datasource.ReadResponse) {
+	var model FlavorModel
+	diags := req.Config.Get(ctx, &model)
+	resp.Diagnostics.Append(diags...)
+	if resp.Diagnostics.HasError() {
+		return
+	}
+
+	ctx = core.InitProviderContext(ctx)
+
+	projectId := model.ProjectId.ValueString()
+	region := r.providerData.GetRegionWithOverride(model.Region)
+	ctx = tflog.SetField(ctx, "project_id", projectId)
+	ctx = tflog.SetField(ctx, "region", region)
+
+	flavors, err := getAllFlavors(ctx, r.client, projectId, region)
+	if err != nil {
+		core.LogAndAddError(ctx, &resp.Diagnostics, "Error reading flavors", fmt.Sprintf("getAllFlavors: %v", err))
+		return
+	}
+
+	var foundFlavors []sqlserverflexbetaPkg.ListFlavors
+	for _, flavor := range flavors {
+		if model.Cpu.ValueInt64() != *flavor.Cpu {
+			continue
+		}
+		if model.Memory.ValueInt64() != *flavor.Memory {
+			continue
+		}
+		if model.NodeType.ValueString() != *flavor.NodeType {
+			continue
+		}
+		for _, sc := range *flavor.StorageClasses {
+			if model.StorageClass.ValueString() != *sc.Class {
+				continue
+			}
+			foundFlavors = append(foundFlavors, flavor)
+		}
+	}
+	if len(foundFlavors) == 0 {
+		resp.Diagnostics.AddError("get flavor", "could not find requested flavor")
+		return
+	}
+	if len(foundFlavors) > 1 {
+		resp.Diagnostics.AddError("get flavor", "found too many matching flavors")
+		return
+	}
+
+	f := foundFlavors[0]
+	model.Description = types.StringValue(*f.Description)
+	model.Id = utils.BuildInternalTerraformId(model.ProjectId.ValueString(), region, *f.Id)
+	model.FlavorId = types.StringValue(*f.Id)
+	model.MaxGb = types.Int64Value(*f.MaxGB)
+	model.MinGb = types.Int64Value(*f.MinGB)
+
+	if f.StorageClasses == nil {
+		model.StorageClasses = types.ListNull(sqlserverflexbetaGen.StorageClassesType{
+			ObjectType: basetypes.ObjectType{
+				AttrTypes: sqlserverflexbetaGen.StorageClassesValue{}.AttributeTypes(ctx),
+			},
+		})
+	} else {
+		var scList []attr.Value
+		for _, sc := range *f.StorageClasses {
+			scList = append(
+				scList,
+				sqlserverflexbetaGen.NewStorageClassesValueMust(
+					sqlserverflexbetaGen.StorageClassesValue{}.AttributeTypes(ctx),
+					map[string]attr.Value{
+						"class":             types.StringValue(*sc.Class),
+						"max_io_per_sec":    types.Int64Value(*sc.MaxIoPerSec),
+						"max_through_in_mb": types.Int64Value(*sc.MaxThroughInMb),
+					},
+				),
+			)
+		}
+		storageClassesList := types.ListValueMust(
+			sqlserverflexbetaGen.StorageClassesType{
+				ObjectType: basetypes.ObjectType{
+					AttrTypes: sqlserverflexbetaGen.StorageClassesValue{}.AttributeTypes(ctx),
+				},
+			},
+			scList,
+		)
+		model.StorageClasses = storageClassesList
+	}
+
+	// Set refreshed state
+	diags = resp.State.Set(ctx, model)
+	resp.Diagnostics.Append(diags...)
+	if resp.Diagnostics.HasError() {
+		return
+	}
+	tflog.Info(ctx, "Postgres Flex flavors read")
+}

stackit/internal/services/sqlserverflexbeta/flavor/functions.go

@@ -0,0 +1,65 @@
+package sqlserverFlexBetaFlavor
+
+import (
+	"context"
+	"fmt"
+
+	"tf-provider.git.onstackit.cloud/stackit-dev-tools/terraform-provider-stackitprivatepreview/pkg_gen/sqlserverflexbeta"
+)
+
+type flavorsClientReader interface {
+	GetFlavorsRequest(
+		ctx context.Context,
+		projectId, region string,
+	) sqlserverflexbeta.ApiGetFlavorsRequestRequest
+}
+
+func getAllFlavors(ctx context.Context, client flavorsClientReader, projectId, region string) (
+	[]sqlserverflexbeta.ListFlavors,
+	error,
+) {
+	getAllFilter := func(_ sqlserverflexbeta.ListFlavors) bool { return true }
+	flavorList, err := getFlavorsByFilter(ctx, client, projectId, region, getAllFilter)
+	if err != nil {
+		return nil, err
+	}
+	return flavorList, nil
+}
+
+// getFlavorsByFilter is a helper function to retrieve flavors using a filtern function.
+// Hint: The API does not have a GetFlavors endpoint, only ListFlavors
+func getFlavorsByFilter(
+	ctx context.Context,
+	client flavorsClientReader,
+	projectId, region string,
+	filter func(db sqlserverflexbeta.ListFlavors) bool,
+) ([]sqlserverflexbeta.ListFlavors, error) {
+	if projectId == "" || region == "" {
+		return nil, fmt.Errorf("listing sqlserverflexbeta flavors: projectId and region are required")
+	}
+
+	const pageSize = 25
+
+	var result = make([]sqlserverflexbeta.ListFlavors, 0)
+
+	for page := int64(1); ; page++ {
+		res, err := client.GetFlavorsRequest(ctx, projectId, region).
+			Page(page).Size(pageSize).Sort(sqlserverflexbeta.FLAVORSORT_INDEX_ASC).Execute()
+		if err != nil {
+			return nil, fmt.Errorf("requesting flavors list (page %d): %w", page, err)
+		}
+
+		// If the API returns no flavors, we have reached the end of the list.
+		if res.Flavors == nil || len(*res.Flavors) == 0 {
+			break
+		}
+
+		for _, flavor := range *res.Flavors {
+			if filter(flavor) {
+				result = append(result, flavor)
+			}
+		}
+	}
+
+	return result, nil
+}

stackit/internal/services/sqlserverflexbeta/flavor/functions_test.go

@@ -0,0 +1,134 @@
+package sqlserverFlexBetaFlavor
+
+import (
+	"context"
+	"testing"
+
+	"github.com/stackitcloud/stackit-sdk-go/core/utils"
+	"tf-provider.git.onstackit.cloud/stackit-dev-tools/terraform-provider-stackitprivatepreview/pkg_gen/sqlserverflexbeta"
+)
+
+type mockRequest struct {
+	executeFunc func() (*sqlserverflexbeta.GetFlavorsResponse, error)
+}
+
+func (m *mockRequest) Page(_ int64) sqlserverflexbeta.ApiGetFlavorsRequestRequest { return m }
+func (m *mockRequest) Size(_ int64) sqlserverflexbeta.ApiGetFlavorsRequestRequest { return m }
+func (m *mockRequest) Sort(_ sqlserverflexbeta.FlavorSort) sqlserverflexbeta.ApiGetFlavorsRequestRequest {
+	return m
+}
+func (m *mockRequest) Execute() (*sqlserverflexbeta.GetFlavorsResponse, error) {
+	return m.executeFunc()
+}
+
+type mockFlavorsClient struct {
+	executeRequest func() sqlserverflexbeta.ApiGetFlavorsRequestRequest
+}
+
+func (m *mockFlavorsClient) GetFlavorsRequest(_ context.Context, _, _ string) sqlserverflexbeta.ApiGetFlavorsRequestRequest {
+	return m.executeRequest()
+}
+
+var mockResp = func(page int64) (*sqlserverflexbeta.GetFlavorsResponse, error) {
+	if page == 1 {
+		return &sqlserverflexbeta.GetFlavorsResponse{
+			Flavors: &[]sqlserverflexbeta.ListFlavors{
+				{Id: utils.Ptr("flavor-1"), Description: utils.Ptr("first")},
+				{Id: utils.Ptr("flavor-2"), Description: utils.Ptr("second")},
+			},
+		}, nil
+	}
+	if page == 2 {
+		return &sqlserverflexbeta.GetFlavorsResponse{
+			Flavors: &[]sqlserverflexbeta.ListFlavors{
+				{Id: utils.Ptr("flavor-3"), Description: utils.Ptr("three")},
+			},
+		}, nil
+	}
+
+	return &sqlserverflexbeta.GetFlavorsResponse{
+		Flavors: &[]sqlserverflexbeta.ListFlavors{},
+	}, nil
+}
+
+func TestGetFlavorsByFilter(t *testing.T) {
+	tests := []struct {
+		description string
+		projectId   string
+		region      string
+		mockErr     error
+		filter      func(sqlserverflexbeta.ListFlavors) bool
+		wantCount   int
+		wantErr     bool
+	}{
+		{
+			description: "Success - Get all flavors (2 pages)",
+			projectId:   "pid", region: "reg",
+			filter:    func(_ sqlserverflexbeta.ListFlavors) bool { return true },
+			wantCount: 3,
+			wantErr:   false,
+		},
+		{
+			description: "Success - Filter flavors by description",
+			projectId:   "pid", region: "reg",
+			filter:    func(f sqlserverflexbeta.ListFlavors) bool { return *f.Description == "first" },
+			wantCount: 1,
+			wantErr:   false,
+		},
+		{
+			description: "Error - Missing parameters",
+			projectId:   "", region: "reg",
+			wantErr: true,
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(
+			tt.description, func(t *testing.T) {
+				var currentPage int64
+				client := &mockFlavorsClient{
+					executeRequest: func() sqlserverflexbeta.ApiGetFlavorsRequestRequest {
+						return &mockRequest{
+							executeFunc: func() (*sqlserverflexbeta.GetFlavorsResponse, error) {
+								currentPage++
+								return mockResp(currentPage)
+							},
+						}
+					},
+				}
+				actual, err := getFlavorsByFilter(context.Background(), client, tt.projectId, tt.region, tt.filter)
+
+				if (err != nil) != tt.wantErr {
+					t.Errorf("getFlavorsByFilter() error = %v, wantErr %v", err, tt.wantErr)
+					return
+				}
+
+				if !tt.wantErr && len(actual) != tt.wantCount {
+					t.Errorf("getFlavorsByFilter() got %d flavors, want %d", len(actual), tt.wantCount)
+				}
+			},
+		)
+	}
+}
+
+func TestGetAllFlavors(t *testing.T) {
+	var currentPage int64
+	client := &mockFlavorsClient{
+		executeRequest: func() sqlserverflexbeta.ApiGetFlavorsRequestRequest {
+			return &mockRequest{
+				executeFunc: func() (*sqlserverflexbeta.GetFlavorsResponse, error) {
+					currentPage++
+					return mockResp(currentPage)
+				},
+			}
+		},
+	}
+
+	res, err := getAllFlavors(context.Background(), client, "pid", "reg")
+	if err != nil {
+		t.Errorf("getAllFlavors() unexpected error: %v", err)
+	}
+	if len(res) != 3 {
+		t.Errorf("getAllFlavors() expected 3 flavor, got %d", len(res))
+	}
+}

stackit/internal/services/sqlserverflexbeta/flavors/datasource.go

@@ -0,0 +1,118 @@
+package sqlserverflexbeta
+
+import (
+	"context"
+	"fmt"
+	"net/http"
+
+	"github.com/hashicorp/terraform-plugin-framework/datasource"
+	"github.com/hashicorp/terraform-plugin-log/tflog"
+	"tf-provider.git.onstackit.cloud/stackit-dev-tools/terraform-provider-stackitprivatepreview/stackit/internal/conversion"
+	"tf-provider.git.onstackit.cloud/stackit-dev-tools/terraform-provider-stackitprivatepreview/stackit/internal/core"
+	"tf-provider.git.onstackit.cloud/stackit-dev-tools/terraform-provider-stackitprivatepreview/stackit/internal/utils"
+
+	sqlserverflexbetaPkg "tf-provider.git.onstackit.cloud/stackit-dev-tools/terraform-provider-stackitprivatepreview/pkg_gen/sqlserverflexbeta"
+
+	sqlserverflexbetaUtils "tf-provider.git.onstackit.cloud/stackit-dev-tools/terraform-provider-stackitprivatepreview/stackit/internal/services/sqlserverflexbeta/utils"
+
+	sqlserverflexbetaGen "tf-provider.git.onstackit.cloud/stackit-dev-tools/terraform-provider-stackitprivatepreview/stackit/internal/services/sqlserverflexbeta/flavors/datasources_gen"
+)
+
+var _ datasource.DataSource = (*flavorsDataSource)(nil)
+
+const errorPrefix = "[Sqlserverflexbeta - Flavors]"
+
+func NewFlavorsDataSource() datasource.DataSource {
+	return &flavorsDataSource{}
+}
+
+type flavorsDataSource struct {
+	client       *sqlserverflexbetaPkg.APIClient
+	providerData core.ProviderData
+}
+
+func (d *flavorsDataSource) Metadata(_ context.Context, req datasource.MetadataRequest, resp *datasource.MetadataResponse) {
+	resp.TypeName = req.ProviderTypeName + "_sqlserverflexbeta_flavors"
+}
+
+func (d *flavorsDataSource) Schema(ctx context.Context, _ datasource.SchemaRequest, resp *datasource.SchemaResponse) {
+	resp.Schema = sqlserverflexbetaGen.FlavorsDataSourceSchema(ctx)
+}
+
+// Configure adds the provider configured client to the data source.
+func (d *flavorsDataSource) Configure(
+	ctx context.Context,
+	req datasource.ConfigureRequest,
+	resp *datasource.ConfigureResponse,
+) {
+	var ok bool
+	d.providerData, ok = conversion.ParseProviderData(ctx, req.ProviderData, &resp.Diagnostics)
+	if !ok {
+		return
+	}
+
+	apiClient := sqlserverflexbetaUtils.ConfigureClient(ctx, &d.providerData, &resp.Diagnostics)
+	if resp.Diagnostics.HasError() {
+		return
+	}
+	d.client = apiClient
+	tflog.Info(ctx, fmt.Sprintf("%s client configured", errorPrefix))
+}
+
+func (d *flavorsDataSource) Read(ctx context.Context, req datasource.ReadRequest, resp *datasource.ReadResponse) {
+	var data sqlserverflexbetaGen.FlavorsModel
+
+	// Read Terraform configuration data into the model
+	resp.Diagnostics.Append(req.Config.Get(ctx, &data)...)
+
+	if resp.Diagnostics.HasError() {
+		return
+	}
+
+	ctx = core.InitProviderContext(ctx)
+
+	projectId := data.ProjectId.ValueString()
+	region := d.providerData.GetRegionWithOverride(data.Region)
+	flavorsId := data.FlavorsId.ValueString()
+
+	ctx = tflog.SetField(ctx, "project_id", projectId)
+	ctx = tflog.SetField(ctx, "region", region)
+	ctx = tflog.SetField(ctx, "flavors_id", flavorsId)
+
+	flavorsResp, err := d.client.GetFlavorsRequest(ctx, projectId, region, flavorsId).Execute()
+	if err != nil {
+		utils.LogError(
+			ctx,
+			&resp.Diagnostics,
+			err,
+			"Reading flavors",
+			fmt.Sprintf("flavors with ID %q does not exist in project %q.", flavorsId, projectId),
+			map[int]string{
+				http.StatusForbidden: fmt.Sprintf("Project with ID %q not found or forbidden access", projectId),
+			},
+		)
+		resp.State.RemoveResource(ctx)
+		return
+	}
+
+	ctx = core.LogResponse(ctx)
+
+	// Todo: Read API call logic
+
+	// Example data value setting
+	// data.Id = types.StringValue("example-id")
+
+	err = mapResponseToModel(ctx, flavorsResp, &data, resp.Diagnostics)
+	if err != nil {
+		core.LogAndAddError(
+			ctx,
+			&resp.Diagnostics,
+			fmt.Sprintf("%s Read", errorPrefix),
+			fmt.Sprintf("Processing API payload: %v", err),
+		)
+		return
+	}
+
+	// Save data into Terraform state
+	resp.Diagnostics.Append(resp.State.Set(ctx, &data)...)
+}

stackit/internal/services/sqlserverflexbeta/instance/datasource.go

@@ -0,0 +1,134 @@
+package sqlserverflexbeta
+
+import (
+	"context"
+	"fmt"
+	"net/http"
+
+	"github.com/hashicorp/terraform-plugin-framework/datasource"
+	"github.com/hashicorp/terraform-plugin-log/tflog"
+	"github.com/stackitcloud/stackit-sdk-go/core/config"
+	"tf-provider.git.onstackit.cloud/stackit-dev-tools/terraform-provider-stackitprivatepreview/stackit/internal/conversion"
+	"tf-provider.git.onstackit.cloud/stackit-dev-tools/terraform-provider-stackitprivatepreview/stackit/internal/core"
+	"tf-provider.git.onstackit.cloud/stackit-dev-tools/terraform-provider-stackitprivatepreview/stackit/internal/utils"
+
+	sqlserverflexbetaPkg "tf-provider.git.onstackit.cloud/stackit-dev-tools/terraform-provider-stackitprivatepreview/pkg_gen/sqlserverflexbeta"
+
+	sqlserverflexbetaGen "tf-provider.git.onstackit.cloud/stackit-dev-tools/terraform-provider-stackitprivatepreview/stackit/internal/services/sqlserverflexbeta/instance/datasources_gen"
+)
+
+var _ datasource.DataSource = (*instanceDataSource)(nil)
+
+const errorPrefix = "[Sqlserverflexbeta - Instance]"
+
+func NewInstanceDataSource() datasource.DataSource {
+	return &instanceDataSource{}
+}
+
+type instanceDataSource struct {
+	client       *sqlserverflexbetaPkg.APIClient
+	providerData core.ProviderData
+}
+
+func (d *instanceDataSource) Metadata(_ context.Context, req datasource.MetadataRequest, resp *datasource.MetadataResponse) {
+	resp.TypeName = req.ProviderTypeName + "_sqlserverflexbeta_instance"
+}
+
+func (d *instanceDataSource) Schema(ctx context.Context, _ datasource.SchemaRequest, resp *datasource.SchemaResponse) {
+	resp.Schema = sqlserverflexbetaGen.InstanceDataSourceSchema(ctx)
+}
+
+// Configure adds the provider configured client to the data source.
+func (d *instanceDataSource) Configure(
+	ctx context.Context,
+	req datasource.ConfigureRequest,
+	resp *datasource.ConfigureResponse,
+) {
+	var ok bool
+	d.providerData, ok = conversion.ParseProviderData(ctx, req.ProviderData, &resp.Diagnostics)
+	if !ok {
+		return
+	}
+
+	apiClientConfigOptions := []config.ConfigurationOption{
+		config.WithCustomAuth(d.providerData.RoundTripper),
+		utils.UserAgentConfigOption(d.providerData.Version),
+	}
+	if d.providerData.SQLServerFlexCustomEndpoint != "" {
+		apiClientConfigOptions = append(
+			apiClientConfigOptions,
+			config.WithEndpoint(d.providerData.SQLServerFlexCustomEndpoint),
+		)
+	} else {
+		apiClientConfigOptions = append(
+			apiClientConfigOptions,
+			config.WithRegion(d.providerData.GetRegion()),
+		)
+	}
+	apiClient, err := sqlserverflexbetaPkg.NewAPIClient(apiClientConfigOptions...)
+	if err != nil {
+		resp.Diagnostics.AddError(
+			"Error configuring API client",
+			fmt.Sprintf(
+				"Configuring client: %v. This is an error related to the provider configuration, not to the resource configuration",
+				err,
+			),
+		)
+		return
+	}
+	d.client = apiClient
+	tflog.Info(ctx, fmt.Sprintf("%s client configured", errorPrefix))
+}
+
+func (d *instanceDataSource) Read(ctx context.Context, req datasource.ReadRequest, resp *datasource.ReadResponse) {
+	var data sqlserverflexbetaGen.InstanceModel
+
+	// Read Terraform configuration data into the model
+	resp.Diagnostics.Append(req.Config.Get(ctx, &data)...)
+
+	if resp.Diagnostics.HasError() {
+		return
+	}
+
+	ctx = core.InitProviderContext(ctx)
+
+	projectId := data.ProjectId.ValueString()
+	region := d.providerData.GetRegionWithOverride(data.Region)
+	instanceId := data.InstanceId.ValueString()
+
+	ctx = tflog.SetField(ctx, "project_id", projectId)
+	ctx = tflog.SetField(ctx, "region", region)
+	ctx = tflog.SetField(ctx, "instance_id", instanceId)
+
+	instanceResp, err := d.client.GetInstanceRequest(ctx, projectId, region, instanceId).Execute()
+	if err != nil {
+		utils.LogError(
+			ctx,
+			&resp.Diagnostics,
+			err,
+			"Reading instance",
+			fmt.Sprintf("instance with ID %q does not exist in project %q.", instanceId, projectId),
+			map[int]string{
+				http.StatusForbidden: fmt.Sprintf("Project with ID %q not found or forbidden access", projectId),
+			},
+		)
+		resp.State.RemoveResource(ctx)
+		return
+	}
+
+	ctx = core.LogResponse(ctx)
+
+	err = mapDataResponseToModel(ctx, instanceResp, &data, resp.Diagnostics)
+	if err != nil {
+		core.LogAndAddError(
+			ctx,
+			&resp.Diagnostics,
+			fmt.Sprintf("%s Read", errorPrefix),
+			fmt.Sprintf("Processing API payload: %v", err),
+		)
+		return
+	}
+
+	// Save data into Terraform state
+	resp.Diagnostics.Append(resp.State.Set(ctx, &data)...)
+}

stackit/internal/services/sqlserverflexbeta/instance/functions.go

@@ -0,0 +1,306 @@
+package sqlserverflexbeta
+
+import (
+	"context"
+	"fmt"
+	"math"
+
+	"github.com/hashicorp/terraform-plugin-framework/attr"
+	"github.com/hashicorp/terraform-plugin-framework/diag"
+	"github.com/hashicorp/terraform-plugin-framework/resource"
+	"github.com/hashicorp/terraform-plugin-framework/types"
+	"tf-provider.git.onstackit.cloud/stackit-dev-tools/terraform-provider-stackitprivatepreview/pkg_gen/sqlserverflexbeta"
+	"tf-provider.git.onstackit.cloud/stackit-dev-tools/terraform-provider-stackitprivatepreview/stackit/internal/conversion"
+	sqlserverflexbetaDataGen "tf-provider.git.onstackit.cloud/stackit-dev-tools/terraform-provider-stackitprivatepreview/stackit/internal/services/sqlserverflexbeta/instance/datasources_gen"
+	sqlserverflexbetaResGen "tf-provider.git.onstackit.cloud/stackit-dev-tools/terraform-provider-stackitprivatepreview/stackit/internal/services/sqlserverflexbeta/instance/resources_gen"
+)
+
+func mapResponseToModel(
+	ctx context.Context,
+	resp *sqlserverflexbeta.GetInstanceResponse,
+	m *sqlserverflexbetaResGen.InstanceModel,
+	tfDiags diag.Diagnostics,
+) error {
+	m.BackupSchedule = types.StringValue(resp.GetBackupSchedule())
+	m.Edition = types.StringValue(string(resp.GetEdition()))
+	m.Encryption = handleEncryption(m, resp)
+	m.FlavorId = types.StringValue(resp.GetFlavorId())
+	m.Id = types.StringValue(resp.GetId())
+	m.InstanceId = types.StringValue(resp.GetId())
+	m.IsDeletable = types.BoolValue(resp.GetIsDeletable())
+	m.Name = types.StringValue(resp.GetName())
+	netAcl, diags := types.ListValueFrom(ctx, types.StringType, resp.Network.GetAcl())
+	tfDiags.Append(diags...)
+	if diags.HasError() {
+		return fmt.Errorf(
+			"error converting network acl response value",
+		)
+	}
+	net, diags := sqlserverflexbetaResGen.NewNetworkValue(
+		sqlserverflexbetaResGen.NetworkValue{}.AttributeTypes(ctx),
+		map[string]attr.Value{
+			"access_scope":     types.StringValue(string(resp.Network.GetAccessScope())),
+			"acl":              netAcl,
+			"instance_address": types.StringValue(resp.Network.GetInstanceAddress()),
+			"router_address":   types.StringValue(resp.Network.GetRouterAddress()),
+		},
+	)
+	tfDiags.Append(diags...)
+	if diags.HasError() {
+		return fmt.Errorf(
+			"error converting network response value",
+			"access_scope",
+			types.StringValue(string(resp.Network.GetAccessScope())),
+			"acl",
+			netAcl,
+			"instance_address",
+			types.StringValue(resp.Network.GetInstanceAddress()),
+			"router_address",
+			types.StringValue(resp.Network.GetRouterAddress()),
+		)
+	}
+	m.Network = net
+	m.Replicas = types.Int64Value(int64(resp.GetReplicas()))
+	m.RetentionDays = types.Int64Value(resp.GetRetentionDays())
+	m.Status = types.StringValue(string(resp.GetStatus()))
+
+	stor, diags := sqlserverflexbetaResGen.NewStorageValue(
+		sqlserverflexbetaResGen.StorageValue{}.AttributeTypes(ctx),
+		map[string]attr.Value{
+			"class": types.StringValue(resp.Storage.GetClass()),
+			"size":  types.Int64Value(resp.Storage.GetSize()),
+		},
+	)
+	tfDiags.Append(diags...)
+	if diags.HasError() {
+		return fmt.Errorf("error converting storage response value")
+	}
+	m.Storage = stor
+
+	m.Version = types.StringValue(string(resp.GetVersion()))
+	return nil
+}
+
+func mapDataResponseToModel(
+	ctx context.Context,
+	resp *sqlserverflexbeta.GetInstanceResponse,
+	m *sqlserverflexbetaDataGen.InstanceModel,
+	tfDiags diag.Diagnostics,
+) error {
+	m.BackupSchedule = types.StringValue(resp.GetBackupSchedule())
+	m.Edition = types.StringValue(string(resp.GetEdition()))
+	m.Encryption = handleDSEncryption(m, resp)
+	m.FlavorId = types.StringValue(resp.GetFlavorId())
+	m.Id = types.StringValue(resp.GetId())
+	m.InstanceId = types.StringValue(resp.GetId())
+	m.IsDeletable = types.BoolValue(resp.GetIsDeletable())
+	m.Name = types.StringValue(resp.GetName())
+	netAcl, diags := types.ListValueFrom(ctx, types.StringType, resp.Network.GetAcl())
+	tfDiags.Append(diags...)
+	if diags.HasError() {
+		return fmt.Errorf(
+			"error converting network acl response value",
+		)
+	}
+	net, diags := sqlserverflexbetaDataGen.NewNetworkValue(
+		sqlserverflexbetaDataGen.NetworkValue{}.AttributeTypes(ctx),
+		map[string]attr.Value{
+			"access_scope":     types.StringValue(string(resp.Network.GetAccessScope())),
+			"acl":              netAcl,
+			"instance_address": types.StringValue(resp.Network.GetInstanceAddress()),
+			"router_address":   types.StringValue(resp.Network.GetRouterAddress()),
+		},
+	)
+	tfDiags.Append(diags...)
+	if diags.HasError() {
+		return fmt.Errorf(
+			"error converting network response value",
+			"access_scope",
+			types.StringValue(string(resp.Network.GetAccessScope())),
+			"acl",
+			netAcl,
+			"instance_address",
+			types.StringValue(resp.Network.GetInstanceAddress()),
+			"router_address",
+			types.StringValue(resp.Network.GetRouterAddress()),
+		)
+	}
+	m.Network = net
+	m.Replicas = types.Int64Value(int64(resp.GetReplicas()))
+	m.RetentionDays = types.Int64Value(resp.GetRetentionDays())
+	m.Status = types.StringValue(string(resp.GetStatus()))
+
+	stor, diags := sqlserverflexbetaDataGen.NewStorageValue(
+		sqlserverflexbetaDataGen.StorageValue{}.AttributeTypes(ctx),
+		map[string]attr.Value{
+			"class": types.StringValue(resp.Storage.GetClass()),
+			"size":  types.Int64Value(resp.Storage.GetSize()),
+		},
+	)
+	tfDiags.Append(diags...)
+	if diags.HasError() {
+		return fmt.Errorf("error converting storage response value")
+	}
+	m.Storage = stor
+
+	m.Version = types.StringValue(string(resp.GetVersion()))
+	return nil
+}
+
+func handleEncryption(
+	m *sqlserverflexbetaResGen.InstanceModel,
+	resp *sqlserverflexbeta.GetInstanceResponse,
+) sqlserverflexbetaResGen.EncryptionValue {
+	if !resp.HasEncryption() ||
+		resp.Encryption == nil ||
+		resp.Encryption.KekKeyId == nil ||
+		resp.Encryption.KekKeyRingId == nil ||
+		resp.Encryption.KekKeyVersion == nil ||
+		resp.Encryption.ServiceAccount == nil {
+
+		if m.Encryption.IsNull() || m.Encryption.IsUnknown() {
+			return sqlserverflexbetaResGen.NewEncryptionValueNull()
+		}
+		return m.Encryption
+	}
+
+	enc := sqlserverflexbetaResGen.NewEncryptionValueNull()
+	if kVal, ok := resp.Encryption.GetKekKeyIdOk(); ok {
+		enc.KekKeyId = types.StringValue(kVal)
+	}
+	if kkVal, ok := resp.Encryption.GetKekKeyRingIdOk(); ok {
+		enc.KekKeyRingId = types.StringValue(kkVal)
+	}
+	if kkvVal, ok := resp.Encryption.GetKekKeyVersionOk(); ok {
+		enc.KekKeyVersion = types.StringValue(kkvVal)
+	}
+	if sa, ok := resp.Encryption.GetServiceAccountOk(); ok {
+		enc.ServiceAccount = types.StringValue(sa)
+	}
+	return enc
+}
+
+func handleDSEncryption(
+	m *sqlserverflexbetaDataGen.InstanceModel,
+	resp *sqlserverflexbeta.GetInstanceResponse,
+) sqlserverflexbetaDataGen.EncryptionValue {
+	if !resp.HasEncryption() ||
+		resp.Encryption == nil ||
+		resp.Encryption.KekKeyId == nil ||
+		resp.Encryption.KekKeyRingId == nil ||
+		resp.Encryption.KekKeyVersion == nil ||
+		resp.Encryption.ServiceAccount == nil {
+
+		if m.Encryption.IsNull() || m.Encryption.IsUnknown() {
+			return sqlserverflexbetaDataGen.NewEncryptionValueNull()
+		}
+		return m.Encryption
+	}
+
+	enc := sqlserverflexbetaDataGen.NewEncryptionValueNull()
+	if kVal, ok := resp.Encryption.GetKekKeyIdOk(); ok {
+		enc.KekKeyId = types.StringValue(kVal)
+	}
+	if kkVal, ok := resp.Encryption.GetKekKeyRingIdOk(); ok {
+		enc.KekKeyRingId = types.StringValue(kkVal)
+	}
+	if kkvVal, ok := resp.Encryption.GetKekKeyVersionOk(); ok {
+		enc.KekKeyVersion = types.StringValue(kkvVal)
+	}
+	if sa, ok := resp.Encryption.GetServiceAccountOk(); ok {
+		enc.ServiceAccount = types.StringValue(sa)
+	}
+	return enc
+}
+
+func toCreatePayload(
+	ctx context.Context,
+	model *sqlserverflexbetaResGen.InstanceModel,
+) (*sqlserverflexbeta.CreateInstanceRequestPayload, error) {
+	if model == nil {
+		return nil, fmt.Errorf("nil model")
+	}
+
+	storagePayload := &sqlserverflexbeta.CreateInstanceRequestPayloadGetStorageArgType{}
+	if !model.Storage.IsNull() && !model.Storage.IsUnknown() {
+		storagePayload.Class = model.Storage.Class.ValueStringPointer()
+		storagePayload.Size = model.Storage.Size.ValueInt64Pointer()
+	}
+
+	var encryptionPayload *sqlserverflexbeta.CreateInstanceRequestPayloadGetEncryptionArgType = nil
+	if !model.Encryption.IsNull() && !model.Encryption.IsUnknown() &&
+		!model.Encryption.KekKeyId.IsNull() && model.Encryption.KekKeyId.IsUnknown() && model.Encryption.KekKeyId.ValueString() != "" &&
+		!model.Encryption.KekKeyRingId.IsNull() && !model.Encryption.KekKeyRingId.IsUnknown() && model.Encryption.KekKeyRingId.ValueString() != "" &&
+		!model.Encryption.KekKeyVersion.IsNull() && !model.Encryption.KekKeyVersion.IsUnknown() && model.Encryption.KekKeyVersion.ValueString() != "" &&
+		!model.Encryption.ServiceAccount.IsNull() && !model.Encryption.ServiceAccount.IsUnknown() && model.Encryption.ServiceAccount.ValueString() != "" {
+		encryptionPayload = &sqlserverflexbeta.CreateInstanceRequestPayloadGetEncryptionArgType{
+			KekKeyId:       model.Encryption.KekKeyId.ValueStringPointer(),
+			KekKeyRingId:   model.Encryption.KekKeyVersion.ValueStringPointer(),
+			KekKeyVersion:  model.Encryption.KekKeyRingId.ValueStringPointer(),
+			ServiceAccount: model.Encryption.ServiceAccount.ValueStringPointer(),
+		}
+	}
+
+	networkPayload := &sqlserverflexbeta.CreateInstanceRequestPayloadGetNetworkArgType{}
+	if !model.Network.IsNull() && !model.Network.IsUnknown() {
+		networkPayload.AccessScope = sqlserverflexbeta.CreateInstanceRequestPayloadNetworkGetAccessScopeAttributeType(
+			model.Network.AccessScope.ValueStringPointer(),
+		)
+
+		var resList []string
+		diags := model.Network.Acl.ElementsAs(ctx, &resList, false)
+		if diags.HasError() {
+			return nil, fmt.Errorf("error converting network acl list")
+		}
+		networkPayload.Acl = &resList
+	}
+
+	return &sqlserverflexbeta.CreateInstanceRequestPayload{
+		BackupSchedule: conversion.StringValueToPointer(model.BackupSchedule),
+		Encryption:     encryptionPayload,
+		FlavorId:       conversion.StringValueToPointer(model.FlavorId),
+		Name:           conversion.StringValueToPointer(model.Name),
+		Network:        networkPayload,
+		RetentionDays:  conversion.Int64ValueToPointer(model.RetentionDays),
+		Storage:        storagePayload,
+		Version: sqlserverflexbeta.CreateInstanceRequestPayloadGetVersionAttributeType(
+			conversion.StringValueToPointer(model.Version),
+		),
+	}, nil
+
+}
+
+func toUpdatePayload(
+	ctx context.Context,
+	m *sqlserverflexbetaResGen.InstanceModel,
+	resp *resource.UpdateResponse,
+) (*sqlserverflexbeta.UpdateInstanceRequestPayload, error) {
+	if m == nil {
+		return nil, fmt.Errorf("nil model")
+	}
+	if m.Replicas.ValueInt64() > math.MaxUint32 {
+		return nil, fmt.Errorf("replicas value is too big for uint32")
+	}
+	replVal := sqlserverflexbeta.Replicas(uint32(m.Replicas.ValueInt64()))
+
+	var netAcl []string
+	diags := m.Network.Acl.ElementsAs(ctx, &netAcl, false)
+	resp.Diagnostics.Append(diags...)
+	if diags.HasError() {
+		return nil, fmt.Errorf("error converting model network acl value")
+	}
+	return &sqlserverflexbeta.UpdateInstanceRequestPayload{
+		BackupSchedule: m.BackupSchedule.ValueStringPointer(),
+		FlavorId:       m.FlavorId.ValueStringPointer(),
+		Name:           m.Name.ValueStringPointer(),
+		Network: &sqlserverflexbeta.UpdateInstanceRequestPayloadNetwork{
+			Acl: &netAcl,
+		},
+		Replicas:      &replVal,
+		RetentionDays: m.RetentionDays.ValueInt64Pointer(),
+		Storage:       &sqlserverflexbeta.StorageUpdate{Size: m.Storage.Size.ValueInt64Pointer()},
+		Version: sqlserverflexbeta.UpdateInstanceRequestPayloadGetVersionAttributeType(
+			m.Version.ValueStringPointer(),
+		),
+	}, nil
+}

stackit/internal/services/sqlserverflexbeta/instance/planModifiers.yaml

@@ -0,0 +1,124 @@
+fields:
+  - name: 'id'
+    modifiers:
+      - 'UseStateForUnknown'
+
+  - name: 'instance_id'
+    validators:
+      - validate.NoSeparator
+      - validate.UUID
+    modifiers:
+      - 'UseStateForUnknown'
+
+  - name: 'project_id'
+    validators:
+      - validate.NoSeparator
+      - validate.UUID
+    modifiers:
+      - 'UseStateForUnknown'
+      - 'RequiresReplace'
+
+  - name: 'name'
+    modifiers:
+      - 'UseStateForUnknown'
+
+  - name: 'backup_schedule'
+    modifiers:
+      - 'UseStateForUnknown'
+
+  - name: 'encryption.kek_key_id'
+    validators:
+      - validate.NoSeparator
+    modifiers:
+      - 'UseStateForUnknown'
+      - 'RequiresReplace'
+
+  - name: 'encryption.kek_key_version'
+    validators:
+      - validate.NoSeparator
+    modifiers:
+      - 'UseStateForUnknown'
+      - 'RequiresReplace'
+
+  - name: 'encryption.kek_key_ring_id'
+    validators:
+      - validate.NoSeparator
+    modifiers:
+      - 'UseStateForUnknown'
+      - 'RequiresReplace'
+
+  - name: 'encryption.service_account'
+    validators:
+      - validate.NoSeparator
+    modifiers:
+      - 'UseStateForUnknown'
+      - 'RequiresReplace'
+
+  - name: 'network.access_scope'
+    validators:
+      - validate.NoSeparator
+    modifiers:
+      - 'UseStateForUnknown'
+      - 'RequiresReplace'
+
+  - name: 'network.acl'
+    modifiers:
+      - 'UseStateForUnknown'
+
+  - name: 'network.instance_address'
+    modifiers:
+      - 'UseStateForUnknown'
+
+  - name: 'network.router_address'
+    modifiers:
+      - 'UseStateForUnknown'
+
+  - name: 'status'
+    modifiers:
+      - 'UseStateForUnknown'
+
+  - name: 'region'
+    modifiers:
+      - 'UseStateForUnknown'
+      - 'RequiresReplace'
+
+  - name: 'retention_days'
+    modifiers:
+      - 'UseStateForUnknown'
+
+  - name: 'edition'
+    modifiers:
+      - 'UseStateForUnknown'
+      - 'RequiresReplace'
+
+  - name: 'version'
+    modifiers:
+      - 'UseStateForUnknown'
+      - 'RequiresReplace'
+
+  - name: 'replicas'
+    modifiers:
+      - 'UseStateForUnknown'
+      - 'RequiresReplace'
+
+  - name: 'storage'
+    modifiers:
+      - 'UseStateForUnknown'
+
+  - name: 'storage.class'
+    modifiers:
+      - 'UseStateForUnknown'
+      - 'RequiresReplace'
+
+  - name: 'storage.size'
+    modifiers:
+      - 'UseStateForUnknown'
+
+  - name: 'flavor_id'
+    modifiers:
+      - 'UseStateForUnknown'
+      - 'RequiresReplace'
+
+  - name: 'is_deletable'
+    modifiers:
+      - 'UseStateForUnknown'

stackit/internal/services/sqlserverflexbeta/instance/resource.go

@@ -0,0 +1,521 @@
+package sqlserverflexbeta
+
+import (
+	"context"
+	_ "embed"
+	"fmt"
+	"net/http"
+	"strings"
+	"time"
+
+	"github.com/hashicorp/terraform-plugin-framework/path"
+	"github.com/hashicorp/terraform-plugin-framework/resource"
+	"github.com/hashicorp/terraform-plugin-framework/resource/identityschema"
+	"github.com/hashicorp/terraform-plugin-framework/types"
+	"github.com/hashicorp/terraform-plugin-log/tflog"
+	"github.com/stackitcloud/stackit-sdk-go/core/config"
+	"github.com/stackitcloud/stackit-sdk-go/core/oapierror"
+	"tf-provider.git.onstackit.cloud/stackit-dev-tools/terraform-provider-stackitprivatepreview/stackit/internal/conversion"
+	wait "tf-provider.git.onstackit.cloud/stackit-dev-tools/terraform-provider-stackitprivatepreview/stackit/internal/wait/sqlserverflexbeta"
+
+	"tf-provider.git.onstackit.cloud/stackit-dev-tools/terraform-provider-stackitprivatepreview/pkg_gen/sqlserverflexbeta"
+
+	"tf-provider.git.onstackit.cloud/stackit-dev-tools/terraform-provider-stackitprivatepreview/stackit/internal/core"
+	"tf-provider.git.onstackit.cloud/stackit-dev-tools/terraform-provider-stackitprivatepreview/stackit/internal/utils"
+
+	sqlserverflexbetaResGen "tf-provider.git.onstackit.cloud/stackit-dev-tools/terraform-provider-stackitprivatepreview/stackit/internal/services/sqlserverflexbeta/instance/resources_gen"
+)
+
+var (
+	_ resource.Resource                = &instanceResource{}
+	_ resource.ResourceWithConfigure   = &instanceResource{}
+	_ resource.ResourceWithImportState = &instanceResource{}
+	_ resource.ResourceWithModifyPlan  = &instanceResource{}
+	_ resource.ResourceWithIdentity    = &instanceResource{}
+)
+
+func NewInstanceResource() resource.Resource {
+	return &instanceResource{}
+}
+
+type instanceResource struct {
+	client       *sqlserverflexbeta.APIClient
+	providerData core.ProviderData
+}
+
+type InstanceResourceIdentityModel struct {
+	ProjectID  types.String `tfsdk:"project_id"`
+	Region     types.String `tfsdk:"region"`
+	InstanceID types.String `tfsdk:"instance_id"`
+}
+
+func (r *instanceResource) Metadata(ctx context.Context, req resource.MetadataRequest, resp *resource.MetadataResponse) {
+	resp.TypeName = req.ProviderTypeName + "_sqlserverflexbeta_instance"
+}
+
+func (r *instanceResource) Schema(ctx context.Context, req resource.SchemaRequest, resp *resource.SchemaResponse) {
+	resp.Schema = sqlserverflexbetaResGen.InstanceResourceSchema(ctx)
+}
+
+func (r *instanceResource) IdentitySchema(_ context.Context, _ resource.IdentitySchemaRequest, resp *resource.IdentitySchemaResponse) {
+	resp.IdentitySchema = identityschema.Schema{
+		Attributes: map[string]identityschema.Attribute{
+			"project_id": identityschema.StringAttribute{
+				RequiredForImport: true, // must be set during import by the practitioner
+			},
+			"region": identityschema.StringAttribute{
+				RequiredForImport: true, // can be defaulted by the provider configuration
+			},
+			"instance_id": identityschema.StringAttribute{
+				RequiredForImport: true, // can be defaulted by the provider configuration
+			},
+		},
+	}
+}
+
+// Configure adds the provider configured client to the resource.
+func (r *instanceResource) Configure(
+	ctx context.Context,
+	req resource.ConfigureRequest,
+	resp *resource.ConfigureResponse,
+) {
+	var ok bool
+	r.providerData, ok = conversion.ParseProviderData(ctx, req.ProviderData, &resp.Diagnostics)
+	if !ok {
+		return
+	}
+
+	apiClientConfigOptions := []config.ConfigurationOption{
+		config.WithCustomAuth(r.providerData.RoundTripper),
+		utils.UserAgentConfigOption(r.providerData.Version),
+	}
+	if r.providerData.SQLServerFlexCustomEndpoint != "" {
+		apiClientConfigOptions = append(apiClientConfigOptions, config.WithEndpoint(r.providerData.SQLServerFlexCustomEndpoint))
+	} else {
+		apiClientConfigOptions = append(apiClientConfigOptions, config.WithRegion(r.providerData.GetRegion()))
+	}
+	apiClient, err := sqlserverflexbeta.NewAPIClient(apiClientConfigOptions...)
+	if err != nil {
+		resp.Diagnostics.AddError(
+			"Error configuring API client",
+			fmt.Sprintf(
+				"Configuring client: %v. This is an error related to the provider configuration, not to the resource configuration",
+				err,
+			),
+		)
+		return
+	}
+	r.client = apiClient
+	tflog.Info(ctx, "sqlserverflexbeta.Instance client configured")
+}
+
+// ModifyPlan implements resource.ResourceWithModifyPlan.
+// Use the modifier to set the effective region in the current plan.
+func (r *instanceResource) ModifyPlan(
+	ctx context.Context,
+	req resource.ModifyPlanRequest,
+	resp *resource.ModifyPlanResponse,
+) { // nolint:gocritic // function signature required by Terraform
+
+	// skip initial empty configuration to avoid follow-up errors
+	if req.Config.Raw.IsNull() {
+		return
+	}
+	var configModel sqlserverflexbetaResGen.InstanceModel
+	resp.Diagnostics.Append(req.Config.Get(ctx, &configModel)...)
+	if resp.Diagnostics.HasError() {
+		return
+	}
+
+	if req.Plan.Raw.IsNull() {
+		return
+	}
+	var planModel sqlserverflexbetaResGen.InstanceModel
+	resp.Diagnostics.Append(req.Plan.Get(ctx, &planModel)...)
+	if resp.Diagnostics.HasError() {
+		return
+	}
+
+	utils.AdaptRegion(ctx, configModel.Region, &planModel.Region, r.providerData.GetRegion(), resp)
+	if resp.Diagnostics.HasError() {
+		return
+	}
+
+	var identityModel InstanceResourceIdentityModel
+	identityModel.ProjectID = planModel.ProjectId
+	identityModel.Region = planModel.Region
+	if !planModel.InstanceId.IsNull() && !planModel.InstanceId.IsUnknown() {
+		identityModel.InstanceID = planModel.InstanceId
+	}
+
+	resp.Diagnostics.Append(resp.Identity.Set(ctx, identityModel)...)
+	if resp.Diagnostics.HasError() {
+		return
+	}
+
+	resp.Diagnostics.Append(resp.Plan.Set(ctx, planModel)...)
+	if resp.Diagnostics.HasError() {
+		return
+	}
+}
+
+//go:embed planModifiers.yaml
+var modifiersFileByte []byte
+
+func (r *instanceResource) Create(ctx context.Context, req resource.CreateRequest, resp *resource.CreateResponse) {
+	var data sqlserverflexbetaResGen.InstanceModel
+
+	// Read Terraform plan data into the model
+	resp.Diagnostics.Append(req.Plan.Get(ctx, &data)...)
+
+	if resp.Diagnostics.HasError() {
+		return
+	}
+
+	// Read identity data
+	var identityData InstanceResourceIdentityModel
+	resp.Diagnostics.Append(req.Identity.Get(ctx, &identityData)...)
+	if resp.Diagnostics.HasError() {
+		return
+	}
+
+	ctx = core.InitProviderContext(ctx)
+
+	projectId := identityData.ProjectID.ValueString()
+	region := identityData.Region.ValueString()
+	ctx = tflog.SetField(ctx, "project_id", projectId)
+	ctx = tflog.SetField(ctx, "region", region)
+
+	// Generate API request body from model
+	payload, err := toCreatePayload(ctx, &data)
+	if err != nil {
+		core.LogAndAddError(
+			ctx,
+			&resp.Diagnostics,
+			"Error creating Instance",
+			fmt.Sprintf("Creating API payload: %v", err),
+		)
+		return
+	}
+	// Create new Instance
+	createResp, err := r.client.CreateInstanceRequest(
+		ctx,
+		projectId,
+		region,
+	).CreateInstanceRequestPayload(*payload).Execute()
+	if err != nil {
+		core.LogAndAddError(ctx, &resp.Diagnostics, "Error creating Instance", fmt.Sprintf("Calling API: %v", err))
+		return
+	}
+
+	ctx = core.LogResponse(ctx)
+
+	InstanceId := *createResp.Id
+
+	// Example data value setting
+	data.InstanceId = types.StringValue("id-from-response")
+
+	identity := InstanceResourceIdentityModel{
+		ProjectID:  types.StringValue(projectId),
+		Region:     types.StringValue(region),
+		InstanceID: types.StringValue(InstanceId),
+	}
+	resp.Diagnostics.Append(resp.Identity.Set(ctx, identity)...)
+	if resp.Diagnostics.HasError() {
+		return
+	}
+
+	waitResp, err := wait.CreateInstanceWaitHandler(
+		ctx,
+		r.client,
+		projectId,
+		InstanceId,
+		region,
+	).SetSleepBeforeWait(
+		30 * time.Second,
+	).SetTimeout(
+		90 * time.Minute,
+	).WaitWithContext(ctx)
+	if err != nil {
+		core.LogAndAddError(
+			ctx,
+			&resp.Diagnostics,
+			"Error creating Instance",
+			fmt.Sprintf("Instance creation waiting: %v", err),
+		)
+		return
+	}
+
+	if waitResp.Id == nil {
+		core.LogAndAddError(
+			ctx,
+			&resp.Diagnostics,
+			"Error creating Instance",
+			"Instance creation waiting: returned id is nil",
+		)
+		return
+	}
+
+	// Map response body to schema
+	err = mapResponseToModel(ctx, waitResp, &data, resp.Diagnostics)
+	if err != nil {
+		core.LogAndAddError(
+			ctx,
+			&resp.Diagnostics,
+			"Error creating Instance",
+			fmt.Sprintf("Processing API payload: %v", err),
+		)
+		return
+	}
+
+	// Save data into Terraform state
+	resp.Diagnostics.Append(resp.State.Set(ctx, &data)...)
+
+	tflog.Info(ctx, "sqlserverflexbeta.Instance created")
+}
+
+func (r *instanceResource) Read(ctx context.Context, req resource.ReadRequest, resp *resource.ReadResponse) {
+	var data sqlserverflexbetaResGen.InstanceModel
+
+	// Read Terraform prior state data into the model
+	resp.Diagnostics.Append(req.State.Get(ctx, &data)...)
+	if resp.Diagnostics.HasError() {
+		return
+	}
+
+	// Read identity data
+	var identityData InstanceResourceIdentityModel
+	resp.Diagnostics.Append(req.Identity.Get(ctx, &identityData)...)
+	if resp.Diagnostics.HasError() {
+		return
+	}
+
+	ctx = core.InitProviderContext(ctx)
+
+	projectId := identityData.ProjectID.ValueString()
+	region := identityData.Region.ValueString()
+	ctx = tflog.SetField(ctx, "project_id", projectId)
+	ctx = tflog.SetField(ctx, "region", region)
+
+	instanceId := data.InstanceId.ValueString()
+	ctx = tflog.SetField(ctx, "instance_id", instanceId)
+
+	instanceResp, err := r.client.GetInstanceRequest(ctx, projectId, region, instanceId).Execute()
+	if err != nil {
+		oapiErr, ok := err.(*oapierror.GenericOpenAPIError) //nolint:errorlint //complaining that error.As should be used to catch wrapped errors, but this error should not be wrapped
+		if ok && oapiErr.StatusCode == http.StatusNotFound {
+			resp.State.RemoveResource(ctx)
+			return
+		}
+		core.LogAndAddError(ctx, &resp.Diagnostics, "Error reading instance", err.Error())
+		return
+	}
+
+	ctx = core.LogResponse(ctx)
+
+	// Map response body to schema
+	err = mapResponseToModel(ctx, instanceResp, &data, resp.Diagnostics)
+	if err != nil {
+		core.LogAndAddError(
+			ctx,
+			&resp.Diagnostics,
+			"Error reading instance",
+			fmt.Sprintf("Processing API payload: %v", err),
+		)
+		return
+	}
+
+	// Save updated data into Terraform state
+	resp.Diagnostics.Append(resp.State.Set(ctx, &data)...)
+
+	identity := InstanceResourceIdentityModel{
+		ProjectID:  types.StringValue(projectId),
+		Region:     types.StringValue(region),
+		InstanceID: types.StringValue(instanceId),
+	}
+	resp.Diagnostics.Append(resp.Identity.Set(ctx, identity)...)
+	if resp.Diagnostics.HasError() {
+		return
+	}
+
+	tflog.Info(ctx, "sqlserverflexbeta.Instance read")
+}
+
+func (r *instanceResource) Update(ctx context.Context, req resource.UpdateRequest, resp *resource.UpdateResponse) {
+	var data sqlserverflexbetaResGen.InstanceModel
+	updateInstanceError := "Error updating instance"
+
+	// Read Terraform prior state data into the model
+	resp.Diagnostics.Append(req.State.Get(ctx, &data)...)
+	if resp.Diagnostics.HasError() {
+		return
+	}
+
+	// Read identity data
+	var identityData InstanceResourceIdentityModel
+	resp.Diagnostics.Append(req.Identity.Get(ctx, &identityData)...)
+	if resp.Diagnostics.HasError() {
+		return
+	}
+
+	ctx = core.InitProviderContext(ctx)
+
+	projectId := identityData.ProjectID.ValueString()
+	region := identityData.Region.ValueString()
+	ctx = tflog.SetField(ctx, "project_id", projectId)
+	ctx = tflog.SetField(ctx, "region", region)
+
+	instanceId := data.InstanceId.ValueString()
+	ctx = tflog.SetField(ctx, "instance_id", instanceId)
+
+	// Generate API request body from model
+	payload, err := toUpdatePayload(ctx, &data, resp)
+	if err != nil {
+		core.LogAndAddError(
+			ctx,
+			&resp.Diagnostics,
+			updateInstanceError,
+			fmt.Sprintf("Creating API payload: %v", err),
+		)
+		return
+	}
+	// Update existing instance
+	err = r.client.UpdateInstanceRequest(
+		ctx,
+		projectId,
+		region,
+		instanceId,
+	).UpdateInstanceRequestPayload(*payload).Execute()
+	if err != nil {
+		core.LogAndAddError(ctx, &resp.Diagnostics, updateInstanceError, err.Error())
+		return
+	}
+
+	ctx = core.LogResponse(ctx)
+
+	waitResp, err := wait.UpdateInstanceWaitHandler(ctx, r.client, projectId, instanceId, region).WaitWithContext(ctx)
+	if err != nil {
+		core.LogAndAddError(
+			ctx,
+			&resp.Diagnostics,
+			updateInstanceError,
+			fmt.Sprintf("Instance update waiting: %v", err),
+		)
+		return
+	}
+
+	// Map response body to schema
+	err = mapResponseToModel(ctx, waitResp, &data, resp.Diagnostics)
+	if err != nil {
+		core.LogAndAddError(
+			ctx,
+			&resp.Diagnostics,
+			updateInstanceError,
+			fmt.Sprintf("Processing API payload: %v", err),
+		)
+		return
+	}
+
+	// Save updated data into Terraform state
+	resp.Diagnostics.Append(resp.State.Set(ctx, &data)...)
+
+	tflog.Info(ctx, "sqlserverflexbeta.Instance updated")
+}
+
+func (r *instanceResource) Delete(ctx context.Context, req resource.DeleteRequest, resp *resource.DeleteResponse) {
+	var data sqlserverflexbetaResGen.InstanceModel
+
+	// Read Terraform prior state data into the model
+	resp.Diagnostics.Append(req.State.Get(ctx, &data)...)
+	if resp.Diagnostics.HasError() {
+		return
+	}
+
+	// Read identity data
+	var identityData InstanceResourceIdentityModel
+	resp.Diagnostics.Append(req.Identity.Get(ctx, &identityData)...)
+	if resp.Diagnostics.HasError() {
+		return
+	}
+
+	ctx = core.InitProviderContext(ctx)
+
+	projectId := identityData.ProjectID.ValueString()
+	region := identityData.Region.ValueString()
+	ctx = tflog.SetField(ctx, "project_id", projectId)
+	ctx = tflog.SetField(ctx, "region", region)
+
+	instanceId := identityData.InstanceID.ValueString()
+	ctx = tflog.SetField(ctx, "instance_id", instanceId)
+
+	// Delete existing instance
+	err := r.client.DeleteInstanceRequest(ctx, projectId, region, instanceId).Execute()
+	if err != nil {
+		core.LogAndAddError(ctx, &resp.Diagnostics, "Error deleting instance", fmt.Sprintf("Calling API: %v", err))
+		return
+	}
+
+	ctx = core.LogResponse(ctx)
+
+	_, err = wait.DeleteInstanceWaitHandler(ctx, r.client, projectId, instanceId, region).WaitWithContext(ctx)
+	if err != nil {
+		core.LogAndAddError(
+			ctx,
+			&resp.Diagnostics,
+			"Error deleting instance",
+			fmt.Sprintf("Instance deletion waiting: %v", err),
+		)
+		return
+	}
+
+	tflog.Info(ctx, "sqlserverflexbeta.Instance deleted")
+}
+
+// ImportState imports a resource into the Terraform state on success.
+// The expected format of the resource import identifier is: project_id,zone_id,record_set_id
+func (r *instanceResource) ImportState(
+	ctx context.Context,
+	req resource.ImportStateRequest,
+	resp *resource.ImportStateResponse,
+) {
+	ctx = core.InitProviderContext(ctx)
+
+	if req.ID != "" {
+		idParts := strings.Split(req.ID, core.Separator)
+
+		if len(idParts) != 3 || idParts[0] == "" || idParts[1] == "" || idParts[2] == "" {
+			core.LogAndAddError(ctx, &resp.Diagnostics,
+				"Error importing instance",
+				fmt.Sprintf("Expected import identifier with format: [project_id],[region],[instance_id]  Got: %q", req.ID),
+			)
+			return
+		}
+
+		resp.Diagnostics.Append(resp.State.SetAttribute(ctx, path.Root("project_id"), idParts[0])...)
+		resp.Diagnostics.Append(resp.State.SetAttribute(ctx, path.Root("region"), idParts[1])...)
+		resp.Diagnostics.Append(resp.State.SetAttribute(ctx, path.Root("instance_id"), idParts[2])...)
+		return
+	}
+
+	var identityData InstanceResourceIdentityModel
+	resp.Diagnostics.Append(req.Identity.Get(ctx, &identityData)...)
+	if resp.Diagnostics.HasError() {
+		return
+	}
+
+	resp.Diagnostics.Append(
+		resp.State.SetAttribute(
+			ctx,
+			path.Root("id"),
+			utils.BuildInternalTerraformId(
+				identityData.ProjectID.ValueString(),
+				identityData.Region.ValueString(),
+				identityData.InstanceID.ValueString(),
+			),
+		)...)
+	resp.Diagnostics.Append(resp.State.SetAttribute(ctx, path.Root("project_id"), identityData.ProjectID.ValueString())...)
+	resp.Diagnostics.Append(resp.State.SetAttribute(ctx, path.Root("region"), identityData.Region.ValueString())...)
+	resp.Diagnostics.Append(resp.State.SetAttribute(ctx, path.Root("instance_id"), identityData.InstanceID.ValueString())...)
+
+	tflog.Info(ctx, "Sqlserverflexbeta instance state imported")
+}

stackit/internal/services/sqlserverflexbeta/user/datasource.go

@@ -0,0 +1,118 @@
+package sqlserverflexbeta
+
+import (
+	"context"
+	"fmt"
+	"net/http"
+
+	"github.com/hashicorp/terraform-plugin-framework/datasource"
+	"github.com/hashicorp/terraform-plugin-log/tflog"
+	"tf-provider.git.onstackit.cloud/stackit-dev-tools/terraform-provider-stackitprivatepreview/stackit/internal/conversion"
+	"tf-provider.git.onstackit.cloud/stackit-dev-tools/terraform-provider-stackitprivatepreview/stackit/internal/core"
+	"tf-provider.git.onstackit.cloud/stackit-dev-tools/terraform-provider-stackitprivatepreview/stackit/internal/utils"
+
+	sqlserverflexbetaPkg "tf-provider.git.onstackit.cloud/stackit-dev-tools/terraform-provider-stackitprivatepreview/pkg_gen/sqlserverflexbeta"
+
+	sqlserverflexbetaUtils "tf-provider.git.onstackit.cloud/stackit-dev-tools/terraform-provider-stackitprivatepreview/stackit/internal/services/sqlserverflexbeta/utils"
+
+	sqlserverflexbetaGen "tf-provider.git.onstackit.cloud/stackit-dev-tools/terraform-provider-stackitprivatepreview/stackit/internal/services/sqlserverflexbeta/user/datasources_gen"
+)
+
+var _ datasource.DataSource = (*userDataSource)(nil)
+
+const errorPrefix = "[Sqlserverflexbeta - User]"
+
+func NewUserDataSource() datasource.DataSource {
+	return &userDataSource{}
+}
+
+type userDataSource struct {
+	client       *sqlserverflexbetaPkg.APIClient
+	providerData core.ProviderData
+}
+
+func (d *userDataSource) Metadata(_ context.Context, req datasource.MetadataRequest, resp *datasource.MetadataResponse) {
+	resp.TypeName = req.ProviderTypeName + "_sqlserverflexbeta_user"
+}
+
+func (d *userDataSource) Schema(ctx context.Context, _ datasource.SchemaRequest, resp *datasource.SchemaResponse) {
+	resp.Schema = sqlserverflexbetaGen.UserDataSourceSchema(ctx)
+}
+
+// Configure adds the provider configured client to the data source.
+func (d *userDataSource) Configure(
+	ctx context.Context,
+	req datasource.ConfigureRequest,
+	resp *datasource.ConfigureResponse,
+) {
+	var ok bool
+	d.providerData, ok = conversion.ParseProviderData(ctx, req.ProviderData, &resp.Diagnostics)
+	if !ok {
+		return
+	}
+
+	apiClient := sqlserverflexbetaUtils.ConfigureClient(ctx, &d.providerData, &resp.Diagnostics)
+	if resp.Diagnostics.HasError() {
+		return
+	}
+	d.client = apiClient
+	tflog.Info(ctx, fmt.Sprintf("%s client configured", errorPrefix))
+}
+
+func (d *userDataSource) Read(ctx context.Context, req datasource.ReadRequest, resp *datasource.ReadResponse) {
+	var data sqlserverflexbetaGen.UserModel
+
+	// Read Terraform configuration data into the model
+	resp.Diagnostics.Append(req.Config.Get(ctx, &data)...)
+
+	if resp.Diagnostics.HasError() {
+		return
+	}
+
+	ctx = core.InitProviderContext(ctx)
+
+	projectId := data.ProjectId.ValueString()
+	region := d.providerData.GetRegionWithOverride(data.Region)
+	userId := data.UserId.ValueString()
+
+	ctx = tflog.SetField(ctx, "project_id", projectId)
+	ctx = tflog.SetField(ctx, "region", region)
+	ctx = tflog.SetField(ctx, "user_id", userId)
+
+	userResp, err := d.client.GetUserRequest(ctx, projectId, region, userId).Execute()
+	if err != nil {
+		utils.LogError(
+			ctx,
+			&resp.Diagnostics,
+			err,
+			"Reading user",
+			fmt.Sprintf("user with ID %q does not exist in project %q.", userId, projectId),
+			map[int]string{
+				http.StatusForbidden: fmt.Sprintf("Project with ID %q not found or forbidden access", projectId),
+			},
+		)
+		resp.State.RemoveResource(ctx)
+		return
+	}
+
+	ctx = core.LogResponse(ctx)
+
+	// Todo: Read API call logic
+
+	// Example data value setting
+	// data.Id = types.StringValue("example-id")
+
+	err = mapResponseToModel(ctx, userResp, &data, resp.Diagnostics)
+	if err != nil {
+		core.LogAndAddError(
+			ctx,
+			&resp.Diagnostics,
+			fmt.Sprintf("%s Read", errorPrefix),
+			fmt.Sprintf("Processing API payload: %v", err),
+		)
+		return
+	}
+
+	// Save data into Terraform state
+	resp.Diagnostics.Append(resp.State.Set(ctx, &data)...)
+}

stackit/internal/services/sqlserverflexbeta/user/functions.go

@@ -0,0 +1,98 @@
+package sqlserverflexbeta
+
+import (
+	"context"
+	"fmt"
+	"math"
+
+	"github.com/hashicorp/terraform-plugin-framework/attr"
+	"github.com/hashicorp/terraform-plugin-framework/diag"
+	"github.com/hashicorp/terraform-plugin-framework/resource"
+	"github.com/hashicorp/terraform-plugin-framework/types"
+	"tf-provider.git.onstackit.cloud/stackit-dev-tools/terraform-provider-stackitprivatepreview/stackit/internal/conversion"
+
+	sqlserverflexbeta "tf-provider.git.onstackit.cloud/stackit-dev-tools/terraform-provider-stackitprivatepreview/pkg_gen/sqlserverflexbeta"
+	sqlserverflexbetaResGen "tf-provider.git.onstackit.cloud/stackit-dev-tools/terraform-provider-stackitprivatepreview/stackit/internal/services/sqlserverflexbeta/instance/resources_gen"
+)
+
+func mapResponseToModel(
+	ctx context.Context,
+	resp *sqlserverflexbeta.GetUserResponse,
+	m *sqlserverflexbetaResGen.UserModel,
+	tfDiags diag.Diagnostics,
+) error {
+	// TODO: complete and refactor
+	m.Id = types.StringValue(resp.GetId())
+
+	/*
+		sampleList, diags := types.ListValueFrom(ctx, types.StringType, resp.GetList())
+		tfDiags.Append(diags...)
+		if diags.HasError() {
+			return fmt.Errorf(
+				"error converting list response value",
+			)
+		}
+		sample, diags := sqlserverflexbetaResGen.NewSampleValue(
+			sqlserverflexbetaResGen.SampleValue{}.AttributeTypes(ctx),
+			map[string]attr.Value{
+				"field":     types.StringValue(string(resp.GetField())),
+			},
+		)
+		tfDiags.Append(diags...)
+		if diags.HasError() {
+			return fmt.Errorf(
+				"error converting sample response value",
+				"sample",
+				types.StringValue(string(resp.GetField())),
+			)
+		}
+		m.Sample = sample
+	*/
+	return nil
+}
+
+func handleEncryption(
+	m *sqlserverflexbetaResGen.UserModel,
+	resp *sqlserverflexbeta.GetUserResponse,
+) sqlserverflexbetaResGen.EncryptionValue {
+	if !resp.HasEncryption() ||
+		resp.Encryption == nil ||
+		resp.Encryption.KekKeyId == nil ||
+		resp.Encryption.KekKeyRingId == nil ||
+		resp.Encryption.KekKeyVersion == nil ||
+		resp.Encryption.ServiceAccount == nil {
+
+		if m.Encryption.IsNull() || m.Encryption.IsUnknown() {
+			return sqlserverflexbetaResGen.NewEncryptionValueNull()
+		}
+		return m.Encryption
+	}
+
+	enc := sqlserverflexbetaResGen.NewEncryptionValueNull()
+	if kVal, ok := resp.Encryption.GetKekKeyIdOk(); ok {
+		enc.KekKeyId = types.StringValue(kVal)
+	}
+	if kkVal, ok := resp.Encryption.GetKekKeyRingIdOk(); ok {
+		enc.KekKeyRingId = types.StringValue(kkVal)
+	}
+	if kkvVal, ok := resp.Encryption.GetKekKeyVersionOk(); ok {
+		enc.KekKeyVersion = types.StringValue(kkvVal)
+	}
+	if sa, ok := resp.Encryption.GetServiceAccountOk(); ok {
+		enc.ServiceAccount = types.StringValue(sa)
+	}
+	return enc
+}
+
+func toCreatePayload(
+	ctx context.Context,
+	model *sqlserverflexbetaResGen.UserModel,
+) (*sqlserverflexbeta.CreateUserRequestPayload, error) {
+	if model == nil {
+		return nil, fmt.Errorf("nil model")
+	}
+
+	return &sqlserverflexbeta.CreateUserRequestPayload{
+		// TODO: fill fields
+	}, nil
+}

stackit/internal/services/sqlserverflexbeta/user/resource.go

@@ -0,0 +1,411 @@
+package sqlserverflexbeta
+
+import (
+	"context"
+	"fmt"
+	"strings"
+
+	"github.com/hashicorp/terraform-plugin-framework/path"
+	"github.com/hashicorp/terraform-plugin-framework/resource"
+	"github.com/hashicorp/terraform-plugin-framework/resource/identityschema"
+	"github.com/hashicorp/terraform-plugin-framework/types"
+	"github.com/hashicorp/terraform-plugin-log/tflog"
+	"github.com/stackitcloud/stackit-sdk-go/core/config"
+	"tf-provider.git.onstackit.cloud/stackit-dev-tools/terraform-provider-stackitprivatepreview/stackit/internal/conversion"
+
+	"tf-provider.git.onstackit.cloud/stackit-dev-tools/terraform-provider-stackitprivatepreview/pkg_gen/sqlserverflexbeta"
+
+	"tf-provider.git.onstackit.cloud/stackit-dev-tools/terraform-provider-stackitprivatepreview/stackit/internal/core"
+	"tf-provider.git.onstackit.cloud/stackit-dev-tools/terraform-provider-stackitprivatepreview/stackit/internal/utils"
+
+	sqlserverflexbetaResGen "tf-provider.git.onstackit.cloud/stackit-dev-tools/terraform-provider-stackitprivatepreview/stackit/internal/services/sqlserverflexbeta/user/resources_gen"
+)
+
+var (
+	_ resource.Resource                = &userResource{}
+	_ resource.ResourceWithConfigure   = &userResource{}
+	_ resource.ResourceWithImportState = &userResource{}
+	_ resource.ResourceWithModifyPlan  = &userResource{}
+	_ resource.ResourceWithIdentity    = &userResource{}
+)
+
+func NewUserResource() resource.Resource {
+	return &userResource{}
+}
+
+type userResource struct {
+	client       *sqlserverflexbeta.APIClient
+	providerData core.ProviderData
+}
+
+type UserResourceIdentityModel struct {
+	ProjectID types.String `tfsdk:"project_id"`
+	Region    types.String `tfsdk:"region"`
+	UserID    types.String `tfsdk:"instance_id"`
+	// TODO: implement further needed parts
+}
+
+func (r *userResource) Metadata(ctx context.Context, req resource.MetadataRequest, resp *resource.MetadataResponse) {
+	resp.TypeName = req.ProviderTypeName + "_sqlserverflexbeta_user"
+}
+
+func (r *userResource) Schema(ctx context.Context, req resource.SchemaRequest, resp *resource.SchemaResponse) {
+	resp.Schema = sqlserverflexbetaResGen.UserResourceSchema(ctx)
+}
+
+func (r *instanceResource) IdentitySchema(_ context.Context, _ resource.IdentitySchemaRequest, resp *resource.IdentitySchemaResponse) {
+	resp.IdentitySchema = identityschema.Schema{
+		Attributes: map[string]identityschema.Attribute{
+			"project_id": identityschema.StringAttribute{
+				RequiredForImport: true, // must be set during import by the practitioner
+			},
+			"region": identityschema.StringAttribute{
+				RequiredForImport: true, // can be defaulted by the provider configuration
+			},
+			"instance_id": identityschema.StringAttribute{
+				RequiredForImport: true, // can be defaulted by the provider configuration
+			},
+		},
+	}
+}
+
+// Configure adds the provider configured client to the resource.
+func (r *userResource) Configure(
+	ctx context.Context,
+	req resource.ConfigureRequest,
+	resp *resource.ConfigureResponse,
+) {
+	var ok bool
+	r.providerData, ok = conversion.ParseProviderData(ctx, req.ProviderData, &resp.Diagnostics)
+	if !ok {
+		return
+	}
+
+	apiClientConfigOptions := []config.ConfigurationOption{
+		config.WithCustomAuth(r.providerData.RoundTripper),
+		utils.UserAgentConfigOption(r.providerData.Version),
+	}
+	if r.providerData.SqlserverflexbetaCustomEndpoint != "" {
+		apiClientConfigOptions = append(apiClientConfigOptions, config.WithEndpoint(r.providerData.sqlserverflexbetaCustomEndpoint))
+	} else {
+		apiClientConfigOptions = append(apiClientConfigOptions, config.WithRegion(r.providerData.GetRegion()))
+	}
+	apiClient, err := sqlserverflexbeta.NewAPIClient(apiClientConfigOptions...)
+	if err != nil {
+		resp.Diagnostics.AddError(
+			"Error configuring API client",
+			fmt.Sprintf(
+				"Configuring client: %v. This is an error related to the provider configuration, not to the resource configuration",
+				err,
+			),
+		)
+		return
+	}
+	r.client = apiClient
+	tflog.Info(ctx, "sqlserverflexbeta.User client configured")
+}
+
+func (r *userResource) Create(ctx context.Context, req resource.CreateRequest, resp *resource.CreateResponse) {
+	var data sqlserverflexbetaResGen.UserModel
+
+	// Read Terraform plan data into the model
+	resp.Diagnostics.Append(req.Plan.Get(ctx, &data)...)
+
+	if resp.Diagnostics.HasError() {
+		return
+	}
+
+	// Read identity data
+	var identityData UserResourceIdentityModel
+	resp.Diagnostics.Append(req.Identity.Get(ctx, &identityData)...)
+	if resp.Diagnostics.HasError() {
+		return
+	}
+
+	ctx = core.InitProviderContext(ctx)
+
+	projectId := identityData.ProjectID.ValueString()
+	region := identityData.Region.ValueString()
+	ctx = tflog.SetField(ctx, "project_id", projectId)
+	ctx = tflog.SetField(ctx, "region", region)
+
+	// TODO: Create API call logic
+	/*
+				// Generate API request body from model
+		    	payload, err := toCreatePayload(ctx, &model)
+		    	if err != nil {
+		    		core.LogAndAddError(
+		    			ctx,
+		    			&resp.Diagnostics,
+		    			"Error creating User",
+		    			fmt.Sprintf("Creating API payload: %v", err),
+		    		)
+		    		return
+		    	}
+		    	// Create new User
+		    	createResp, err := r.client.CreateUserRequest(
+		    		ctx,
+		    		projectId,
+		    		region,
+		    	).CreateUserRequestPayload(*payload).Execute()
+		    	if err != nil {
+		    		core.LogAndAddError(ctx, &resp.Diagnostics, "Error creating User", fmt.Sprintf("Calling API: %v", err))
+		    		return
+		    	}
+
+		    	ctx = core.LogResponse(ctx)
+
+		    	UserId := *createResp.Id
+	*/
+
+	// Example data value setting
+	data.UserId = types.StringValue("id-from-response")
+
+	// TODO: Set data returned by API in identity
+	identity := UserResourceIdentityModel{
+		ProjectID: types.StringValue(projectId),
+		Region:    types.StringValue(region),
+		// TODO: add missing values
+		UserID: types.StringValue(UserId),
+	}
+	resp.Diagnostics.Append(resp.Identity.Set(ctx, identity)...)
+	if resp.Diagnostics.HasError() {
+		return
+	}
+
+	// TODO: implement wait handler if needed
+	/*
+
+				waitResp, err := wait.CreateUserWaitHandler(
+		    		ctx,
+		    		r.client,
+		    		projectId,
+		    		UserId,
+		    		region,
+		    	).SetSleepBeforeWait(
+		    		30 * time.Second,
+		    	).SetTimeout(
+		    		90 * time.Minute,
+		    	).WaitWithContext(ctx)
+		    	if err != nil {
+		    		core.LogAndAddError(
+		    			ctx,
+		    			&resp.Diagnostics,
+		    			"Error creating User",
+		    			fmt.Sprintf("User creation waiting: %v", err),
+		    		)
+		    		return
+		    	}
+
+		    	if waitResp.Id == nil {
+		    		core.LogAndAddError(
+		    			ctx,
+		    			&resp.Diagnostics,
+		    			"Error creating User",
+		    			"User creation waiting: returned id is nil",
+		    		)
+		    		return
+		    	}
+
+		    	// Map response body to schema
+		    	err = mapResponseToModel(ctx, waitResp, &model, resp.Diagnostics)
+		    	if err != nil {
+		    		core.LogAndAddError(
+		    			ctx,
+		    			&resp.Diagnostics,
+		    			"Error creating User",
+		    			fmt.Sprintf("Processing API payload: %v", err),
+		    		)
+		    		return
+		    	}
+
+	*/
+
+	// Save data into Terraform state
+	resp.Diagnostics.Append(resp.State.Set(ctx, &data)...)
+
+	tflog.Info(ctx, "sqlserverflexbeta.User created")
+}
+
+func (r *userResource) Read(ctx context.Context, req resource.ReadRequest, resp *resource.ReadResponse) {
+	var data sqlserverflexbetaResGen.UserModel
+
+	// Read Terraform prior state data into the model
+	resp.Diagnostics.Append(req.State.Get(ctx, &data)...)
+	if resp.Diagnostics.HasError() {
+		return
+	}
+
+	// Read identity data
+	var identityData UserResourceIdentityModel
+	resp.Diagnostics.Append(req.Identity.Get(ctx, &identityData)...)
+	if resp.Diagnostics.HasError() {
+		return
+	}
+
+	ctx = core.InitProviderContext(ctx)
+
+	projectId := identityData.ProjectID.ValueString()
+	region := identityData.Region.ValueString()
+	ctx = tflog.SetField(ctx, "project_id", projectId)
+	ctx = tflog.SetField(ctx, "region", region)
+
+	// Todo: Read API call logic
+
+	// Save updated data into Terraform state
+	resp.Diagnostics.Append(resp.State.Set(ctx, &data)...)
+
+	// TODO: Set data returned by API in identity
+	identity := UserResourceIdentityModel{
+		ProjectID: types.StringValue(projectId),
+		Region:    types.StringValue(region),
+		// InstanceID: types.StringValue(instanceId),
+	}
+	resp.Diagnostics.Append(resp.Identity.Set(ctx, identity)...)
+	if resp.Diagnostics.HasError() {
+		return
+	}
+
+	tflog.Info(ctx, "sqlserverflexbeta.User read")
+}
+
+func (r *userResource) Update(ctx context.Context, req resource.UpdateRequest, resp *resource.UpdateResponse) {
+	var data sqlserverflexbetaResGen.UserModel
+
+	// Read Terraform prior state data into the model
+	resp.Diagnostics.Append(req.State.Get(ctx, &data)...)
+	if resp.Diagnostics.HasError() {
+		return
+	}
+
+	// Read identity data
+	var identityData UserResourceIdentityModel
+	resp.Diagnostics.Append(req.Identity.Get(ctx, &identityData)...)
+	if resp.Diagnostics.HasError() {
+		return
+	}
+
+	ctx = core.InitProviderContext(ctx)
+
+	projectId := identityData.ProjectID.ValueString()
+	region := identityData.Region.ValueString()
+	ctx = tflog.SetField(ctx, "project_id", projectId)
+	ctx = tflog.SetField(ctx, "region", region)
+
+	// Todo: Update API call logic
+
+	// Save updated data into Terraform state
+	resp.Diagnostics.Append(resp.State.Set(ctx, &data)...)
+
+	tflog.Info(ctx, "sqlserverflexbeta.User updated")
+}
+
+func (r *userResource) Delete(ctx context.Context, req resource.DeleteRequest, resp *resource.DeleteResponse) {
+	var data sqlserverflexbetaResGen.UserModel
+
+	// Read Terraform prior state data into the model
+	resp.Diagnostics.Append(req.State.Get(ctx, &data)...)
+	if resp.Diagnostics.HasError() {
+		return
+	}
+
+	// Read identity data
+	var identityData UserResourceIdentityModel
+	resp.Diagnostics.Append(req.Identity.Get(ctx, &identityData)...)
+	if resp.Diagnostics.HasError() {
+		return
+	}
+
+	ctx = core.InitProviderContext(ctx)
+
+	projectId := identityData.ProjectID.ValueString()
+	region := identityData.Region.ValueString()
+	ctx = tflog.SetField(ctx, "project_id", projectId)
+	ctx = tflog.SetField(ctx, "region", region)
+
+	// Todo: Delete API call logic
+
+	tflog.Info(ctx, "sqlserverflexbeta.User deleted")
+}
+
+// ModifyPlan implements resource.ResourceWithModifyPlan.
+// Use the modifier to set the effective region in the current plan.
+func (r *userResource) ModifyPlan(
+	ctx context.Context,
+	req resource.ModifyPlanRequest,
+	resp *resource.ModifyPlanResponse,
+) { // nolint:gocritic // function signature required by Terraform
+	var configModel sqlserverflexbetaResGen.UserModel
+	// skip initial empty configuration to avoid follow-up errors
+	if req.Config.Raw.IsNull() {
+		return
+	}
+	resp.Diagnostics.Append(req.Config.Get(ctx, &configModel)...)
+	if resp.Diagnostics.HasError() {
+		return
+	}
+
+	var planModel sqlserverflexbetaResGen.UserModel
+	resp.Diagnostics.Append(req.Plan.Get(ctx, &planModel)...)
+	if resp.Diagnostics.HasError() {
+		return
+	}
+
+	utils.AdaptRegion(ctx, configModel.Region, &planModel.Region, r.providerData.GetRegion(), resp)
+	if resp.Diagnostics.HasError() {
+		return
+	}
+
+	var identityModel UserResourceIdentityModel
+	identityModel.ProjectID = planModel.ProjectId
+	identityModel.Region = planModel.Region
+	// TODO: complete
+	//if !planModel.InstanceId.IsNull() && !planModel.InstanceId.IsUnknown() {
+	//	identityModel.InstanceID = planModel.InstanceId
+	//}
+
+	resp.Diagnostics.Append(resp.Identity.Set(ctx, identityModel)...)
+	if resp.Diagnostics.HasError() {
+		return
+	}
+
+	resp.Diagnostics.Append(resp.Plan.Set(ctx, planModel)...)
+	if resp.Diagnostics.HasError() {
+		return
+	}
+}
+
+// ImportState imports a resource into the Terraform state on success.
+// The expected format of the resource import identifier is: project_id,zone_id,record_set_id
+func (r *userResource) ImportState(
+	ctx context.Context,
+	req resource.ImportStateRequest,
+	resp *resource.ImportStateResponse,
+) {
+	idParts := strings.Split(req.ID, core.Separator)
+
+	// Todo: Import logic
+	if len(idParts) < 2 || idParts[0] == "" || idParts[1] == "" {
+		core.LogAndAddError(
+			ctx, &resp.Diagnostics,
+			"Error importing database",
+			fmt.Sprintf(
+				"Expected import identifier with format [project_id],[region],..., got %q",
+				req.ID,
+			),
+		)
+		return
+	}
+
+	resp.Diagnostics.Append(resp.State.SetAttribute(ctx, path.Root("project_id"), idParts[0])...)
+	resp.Diagnostics.Append(resp.State.SetAttribute(ctx, path.Root("region"), idParts[1])...)
+	// ... more ...
+
+	core.LogAndAddWarning(
+		ctx,
+		&resp.Diagnostics,
+		"Sqlserverflexbeta database imported with empty password",
+		"The database password is not imported as it is only available upon creation of a new database. The password field will be empty.",
+	)
+	tflog.Info(ctx, "Sqlserverflexbeta user state imported")
+}

stackit/internal/services/sqlserverflexbeta/user/resources_gen/user_resource_gen.go

@@ -0,0 +1,111 @@
+// Code generated by terraform-plugin-framework-generator DO NOT EDIT.
+
+package sqlserverflexbeta
+
+import (
+	"context"
+	"github.com/hashicorp/terraform-plugin-framework-validators/stringvalidator"
+	"github.com/hashicorp/terraform-plugin-framework/schema/validator"
+	"github.com/hashicorp/terraform-plugin-framework/types"
+
+	"github.com/hashicorp/terraform-plugin-framework/resource/schema"
+)
+
+func UserResourceSchema(ctx context.Context) schema.Schema {
+	return schema.Schema{
+		Attributes: map[string]schema.Attribute{
+			"default_database": schema.StringAttribute{
+				Optional:            true,
+				Computed:            true,
+				Description:         "The default database for a user of the instance.",
+				MarkdownDescription: "The default database for a user of the instance.",
+			},
+			"host": schema.StringAttribute{
+				Computed:            true,
+				Description:         "The host of the instance in which the user belongs to.",
+				MarkdownDescription: "The host of the instance in which the user belongs to.",
+			},
+			"id": schema.Int64Attribute{
+				Computed:            true,
+				Description:         "The ID of the user.",
+				MarkdownDescription: "The ID of the user.",
+			},
+			"instance_id": schema.StringAttribute{
+				Optional:            true,
+				Computed:            true,
+				Description:         "The ID of the instance.",
+				MarkdownDescription: "The ID of the instance.",
+			},
+			"password": schema.StringAttribute{
+				Computed:            true,
+				Description:         "The password for the user.",
+				MarkdownDescription: "The password for the user.",
+			},
+			"port": schema.Int64Attribute{
+				Computed:            true,
+				Description:         "The port of the instance in which the user belongs to.",
+				MarkdownDescription: "The port of the instance in which the user belongs to.",
+			},
+			"project_id": schema.StringAttribute{
+				Optional:            true,
+				Computed:            true,
+				Description:         "The STACKIT project ID.",
+				MarkdownDescription: "The STACKIT project ID.",
+			},
+			"region": schema.StringAttribute{
+				Optional:            true,
+				Computed:            true,
+				Description:         "The region which should be addressed",
+				MarkdownDescription: "The region which should be addressed",
+				Validators: []validator.String{
+					stringvalidator.OneOf(
+						"eu01",
+					),
+				},
+			},
+			"roles": schema.ListAttribute{
+				ElementType:         types.StringType,
+				Required:            true,
+				Description:         "A list containing the user roles for the instance.",
+				MarkdownDescription: "A list containing the user roles for the instance.",
+			},
+			"status": schema.StringAttribute{
+				Computed:            true,
+				Description:         "The current status of the user.",
+				MarkdownDescription: "The current status of the user.",
+			},
+			"uri": schema.StringAttribute{
+				Computed:            true,
+				Description:         "The connection string for the user to the instance.",
+				MarkdownDescription: "The connection string for the user to the instance.",
+			},
+			"user_id": schema.Int64Attribute{
+				Optional:            true,
+				Computed:            true,
+				Description:         "The ID of the user.",
+				MarkdownDescription: "The ID of the user.",
+			},
+			"username": schema.StringAttribute{
+				Required:            true,
+				Description:         "The name of the user.",
+				MarkdownDescription: "The name of the user.",
+			},
+		},
+	}
+}
+
+type UserModel struct {
+	DefaultDatabase types.String `tfsdk:"default_database"`
+	Host            types.String `tfsdk:"host"`
+	Id              types.Int64  `tfsdk:"id"`
+	InstanceId      types.String `tfsdk:"instance_id"`
+	Password        types.String `tfsdk:"password"`
+	Port            types.Int64  `tfsdk:"port"`
+	ProjectId       types.String `tfsdk:"project_id"`
+	Region          types.String `tfsdk:"region"`
+	Roles           types.List   `tfsdk:"roles"`
+	Status          types.String `tfsdk:"status"`
+	Uri             types.String `tfsdk:"uri"`
+	UserId          types.Int64  `tfsdk:"user_id"`
+	Username        types.String `tfsdk:"username"`
+}