chore: changed and refactored providers (#36)

## Description

<!-- **Please link some issue here describing what you are trying to achieve.**

In case there is no issue present for your PR, please consider creating one.
At least please give us some description what you are trying to achieve and why your change is needed. -->

relates to #1234

## Checklist

- [ ] Issue was linked above
- [ ] Code format was applied: `make fmt`
- [ ] Examples were added / adjusted (see `examples/` directory)
- [x] Docs are up-to-date: `make generate-docs` (will be checked by CI)
- [ ] Unit tests got implemented or updated
- [ ] Acceptance tests got implemented or updated (see e.g. [here](f5f99d1709/stackit/internal/services/dns/dns_acc_test.go))
- [x] Unit tests are passing: `make test` (will be checked by CI)
- [x] No linter issues: `make lint` (will be checked by CI)

Co-authored-by: Marcel S. Henselin <marcel.henselin@stackit.cloud>
Reviewed-on: #36
Reviewed-by: Marcel_Henselin <marcel.henselin@stackit.cloud>
Co-authored-by: Andre Harms <andre.harms@stackit.cloud>
Co-committed-by: Andre Harms <andre.harms@stackit.cloud>

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

@@ -26,17 +26,21 @@ func NewDatabaseDataSource() datasource.DataSource {
 	return &databaseDataSource{}
 }
 
+type dataSourceModel struct {
+	sqlserverflexbetaGen.DatabaseModel
+	TfId types.String `tfsdk:"id"`
+}
+
 type databaseDataSource struct {
 	client       *sqlserverflexbetaPkg.APIClient
 	providerData core.ProviderData
 }
 
-type dsModel struct {
-	sqlserverflexbetaGen.DatabaseModel
-	TfId types.String `tfsdk:"id"`
-}
-
-func (d *databaseDataSource) Metadata(_ context.Context, req datasource.MetadataRequest, resp *datasource.MetadataResponse) {
+func (d *databaseDataSource) Metadata(
+	_ context.Context,
+	req datasource.MetadataRequest,
+	resp *datasource.MetadataResponse,
+) {
 	resp.TypeName = req.ProviderTypeName + "_sqlserverflexbeta_database"
 }
 
@@ -92,7 +96,7 @@ func (d *databaseDataSource) Configure(
 }
 
 func (d *databaseDataSource) Read(ctx context.Context, req datasource.ReadRequest, resp *datasource.ReadResponse) {
-	var data dsModel
+	var data dataSourceModel
 	readErr := "Read DB error"
 
 	// Read Terraform configuration data into the model

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

@@ -0,0 +1,50 @@
+fields:
+  - name: 'id'
+    modifiers:
+      - 'UseStateForUnknown'
+
+  - name: 'instance_id'
+    validators:
+      - validate.NoSeparator
+      - validate.UUID
+    modifiers:
+      - 'RequiresReplace'
+
+  - name: 'project_id'
+    validators:
+      - validate.NoSeparator
+      - validate.UUID
+    modifiers:
+      - 'RequiresReplace'
+
+  - name: 'region'
+    modifiers:
+      - 'RequiresReplace'
+
+  - name: 'name'
+    modifiers:
+      - 'RequiresReplace'
+
+  - name: 'collation'
+    modifiers:
+      - 'RequiresReplace'
+
+  - name: 'owner'
+    modifiers:
+      - 'RequiresReplace'
+
+  - name: 'database_name'
+    modifiers:
+      - 'UseStateForUnknown'
+
+  - name: 'collation_name'
+    modifiers:
+      - 'UseStateForUnknown'
+
+  - name: 'compatibility'
+    modifiers:
+      - 'RequiresReplace'
+  
+  - name: 'compatibility_level'
+    modifiers:
+      - 'UseStateForUnknown'

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

@@ -2,6 +2,7 @@ package sqlserverflexbeta
 
 import (
 	"context"
+	_ "embed"
 	"fmt"
 	"strings"
 	"time"
@@ -35,6 +36,9 @@ func NewDatabaseResource() resource.Resource {
 	return &databaseResource{}
 }
 
+// resourceModel describes the resource data model.
+type resourceModel = sqlserverflexbetaResGen.DatabaseModel
+
 type databaseResource struct {
 	client       *sqlserverflexbeta.APIClient
 	providerData core.ProviderData
@@ -47,15 +51,40 @@ type DatabaseResourceIdentityModel struct {
 	DatabaseName types.String `tfsdk:"database_name"`
 }
 
-func (r *databaseResource) Metadata(ctx context.Context, req resource.MetadataRequest, resp *resource.MetadataResponse) {
+func (r *databaseResource) Metadata(
+	ctx context.Context,
+	req resource.MetadataRequest,
+	resp *resource.MetadataResponse,
+) {
 	resp.TypeName = req.ProviderTypeName + "_sqlserverflexbeta_database"
 }
 
+//go:embed planModifiers.yaml
+var modifiersFileByte []byte
+
 func (r *databaseResource) Schema(ctx context.Context, req resource.SchemaRequest, resp *resource.SchemaResponse) {
-	resp.Schema = sqlserverflexbetaResGen.DatabaseResourceSchema(ctx)
+
+	s := sqlserverflexbetaResGen.DatabaseResourceSchema(ctx)
+
+	fields, err := utils.ReadModifiersConfig(modifiersFileByte)
+	if err != nil {
+		resp.Diagnostics.AddError("error during read modifiers config file", err.Error())
+		return
+	}
+
+	err = utils.AddPlanModifiersToResourceSchema(fields, &s)
+	if err != nil {
+		resp.Diagnostics.AddError("error adding plan modifiers", err.Error())
+		return
+	}
+	resp.Schema = s
 }
 
-func (r *databaseResource) IdentitySchema(_ context.Context, _ resource.IdentitySchemaRequest, resp *resource.IdentitySchemaResponse) {
+func (r *databaseResource) IdentitySchema(
+	_ context.Context,
+	_ resource.IdentitySchemaRequest,
+	resp *resource.IdentitySchemaResponse,
+) {
 	resp.IdentitySchema = identityschema.Schema{
 		Attributes: map[string]identityschema.Attribute{
 			"project_id": identityschema.StringAttribute{
@@ -91,7 +120,10 @@ func (r *databaseResource) Configure(
 		utils.UserAgentConfigOption(r.providerData.Version),
 	}
 	if r.providerData.SQLServerFlexCustomEndpoint != "" {
-		apiClientConfigOptions = append(apiClientConfigOptions, config.WithEndpoint(r.providerData.SQLServerFlexCustomEndpoint))
+		apiClientConfigOptions = append(
+			apiClientConfigOptions,
+			config.WithEndpoint(r.providerData.SQLServerFlexCustomEndpoint),
+		)
 	} else {
 		apiClientConfigOptions = append(apiClientConfigOptions, config.WithRegion(r.providerData.GetRegion()))
 	}
@@ -111,7 +143,7 @@ func (r *databaseResource) Configure(
 }
 
 func (r *databaseResource) Create(ctx context.Context, req resource.CreateRequest, resp *resource.CreateResponse) {
-	var data sqlserverflexbetaResGen.DatabaseModel
+	var data resourceModel
 	createErr := "DB create error"
 
 	// Read Terraform plan data into the model
@@ -243,7 +275,7 @@ func (r *databaseResource) Create(ctx context.Context, req resource.CreateReques
 }
 
 func (r *databaseResource) Read(ctx context.Context, req resource.ReadRequest, resp *resource.ReadResponse) {
-	var data sqlserverflexbetaResGen.DatabaseModel
+	var data resourceModel
 	readErr := "[Database Read]"
 
 	// Read Terraform prior state data into the model
@@ -298,7 +330,7 @@ func (r *databaseResource) Read(ctx context.Context, req resource.ReadRequest, r
 }
 
 func (r *databaseResource) Update(ctx context.Context, req resource.UpdateRequest, resp *resource.UpdateResponse) {
-	var data sqlserverflexbetaResGen.DatabaseModel
+	var data resourceModel
 
 	// Read Terraform prior state data into the model
 	resp.Diagnostics.Append(req.State.Get(ctx, &data)...)
@@ -329,7 +361,7 @@ func (r *databaseResource) Update(ctx context.Context, req resource.UpdateReques
 }
 
 func (r *databaseResource) Delete(ctx context.Context, req resource.DeleteRequest, resp *resource.DeleteResponse) {
-	var data sqlserverflexbetaResGen.DatabaseModel
+	var data resourceModel
 
 	// Read Terraform prior state data into the model
 	resp.Diagnostics.Append(req.State.Get(ctx, &data)...)
@@ -422,9 +454,13 @@ func (r *databaseResource) ImportState(
 		idParts := strings.Split(req.ID, core.Separator)
 
 		if len(idParts) != 4 || idParts[0] == "" || idParts[1] == "" || idParts[2] == "" || idParts[3] == "" {
-			core.LogAndAddError(ctx, &resp.Diagnostics,
+			core.LogAndAddError(
+				ctx, &resp.Diagnostics,
 				"Error importing database",
-				fmt.Sprintf("Expected import identifier with format: [project_id],[region],[instance_id],[database_name]  Got: %q", req.ID),
+				fmt.Sprintf(
+					"Expected import identifier with format: [project_id],[region],[instance_id],[database_name]  Got: %q",
+					req.ID,
+				),
 			)
 			return
 		}
@@ -449,21 +485,22 @@ func (r *databaseResource) ImportState(
 		return
 	}
 
+	// If no ID is provided, attempt to read identity attributes from the import configuration
 	var identityData DatabaseResourceIdentityModel
 	resp.Diagnostics.Append(req.Identity.Get(ctx, &identityData)...)
 	if resp.Diagnostics.HasError() {
 		return
 	}
 
-	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())...)
-	resp.Diagnostics.Append(resp.State.SetAttribute(ctx, path.Root("database_name"), identityData.DatabaseName.ValueString())...)
+	projectId := identityData.ProjectID.ValueString()
+	region := identityData.Region.ValueString()
+	instanceId := identityData.InstanceID.ValueString()
+	databaseName := identityData.DatabaseName.ValueString()
 
-	resp.Diagnostics.Append(resp.Identity.Set(ctx, &identityData)...)
-	if resp.Diagnostics.HasError() {
-		return
-	}
+	resp.Diagnostics.Append(resp.State.SetAttribute(ctx, path.Root("project_id"), projectId)...)
+	resp.Diagnostics.Append(resp.State.SetAttribute(ctx, path.Root("region"), region)...)
+	resp.Diagnostics.Append(resp.State.SetAttribute(ctx, path.Root("instance_id"), instanceId)...)
+	resp.Diagnostics.Append(resp.State.SetAttribute(ctx, path.Root("database_name"), databaseName)...)
 
 	tflog.Info(ctx, "Sqlserverflexbeta database state imported")
 }

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

@@ -0,0 +1,155 @@
+package sqlserverflexbeta
+
+import (
+	"context"
+	"fmt"
+	"net/http"
+
+	"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-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/flavors/datasources_gen"
+)
+
+var _ datasource.DataSource = (*flavorsDataSource)(nil)
+
+const errorPrefix = "[Sqlserverflexbeta - Flavors]"
+
+func NewFlavorsDataSource() datasource.DataSource {
+	return &flavorsDataSource{}
+}
+
+type dataSourceModel struct {
+	sqlserverflexbetaGen.FlavorsModel
+	TerraformId types.String `tfsdk:"id"`
+}
+
+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)
+	resp.Schema.Attributes["id"] = schema.StringAttribute{
+		Computed:            true,
+		Description:         "The terraform internal identifier.",
+		MarkdownDescription: "The terraform internal identifier.",
+	}
+}
+
+// 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
+	}
+
+	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 *flavorsDataSource) Read(ctx context.Context, req datasource.ReadRequest, resp *datasource.ReadResponse) {
+	var data dataSourceModel
+
+	// 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)
+	// TODO: implement right identifier for flavors
+	flavorsId := data.FlavorsModel.Flavors
+
+	ctx = tflog.SetField(ctx, "project_id", projectId)
+	ctx = tflog.SetField(ctx, "region", region)
+
+	// TODO: implement needed fields
+	ctx = tflog.SetField(ctx, "flavors_id", flavorsId)
+
+	// TODO: refactor to correct implementation
+	_, err := d.client.GetFlavorsRequest(ctx, projectId, region).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: refactor to correct implementation of internal tf id
+	data.TerraformId = utils.BuildInternalTerraformId(projectId, region)
+
+	// TODO: fill remaining fields
+	// data.Flavors = types.Sometype(apiResponse.GetFlavors())
+	// data.Page = types.Sometype(apiResponse.GetPage())
+	// data.Pagination = types.Sometype(apiResponse.GetPagination())
+	// data.ProjectId = types.Sometype(apiResponse.GetProjectId())
+	// data.Region = types.Sometype(apiResponse.GetRegion())
+	// data.Size = types.Sometype(apiResponse.GetSize())
+	// data.Sort = types.Sometype(apiResponse.GetSort())// Save data into Terraform state
+	resp.Diagnostics.Append(resp.State.Set(ctx, &data)...)
+
+	tflog.Info(ctx, fmt.Sprintf("%s read successful", errorPrefix))
+}

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

@@ -6,6 +6,7 @@ import (
 	"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"
@@ -25,12 +26,22 @@ func NewInstanceDataSource() datasource.DataSource {
 	return &instanceDataSource{}
 }
 
+// dataSourceModel maps the data source schema data.
+type dataSourceModel struct {
+	sqlserverflexbetaGen.InstanceModel
+	TerraformID types.String `tfsdk:"id"`
+}
+
 type instanceDataSource struct {
 	client       *sqlserverflexbetaPkg.APIClient
 	providerData core.ProviderData
 }
 
-func (d *instanceDataSource) Metadata(_ context.Context, req datasource.MetadataRequest, resp *datasource.MetadataResponse) {
+func (d *instanceDataSource) Metadata(
+	_ context.Context,
+	req datasource.MetadataRequest,
+	resp *datasource.MetadataResponse,
+) {
 	resp.TypeName = req.ProviderTypeName + "_sqlserverflexbeta_instance"
 }
 
@@ -81,7 +92,7 @@ func (d *instanceDataSource) Configure(
 }
 
 func (d *instanceDataSource) Read(ctx context.Context, req datasource.ReadRequest, resp *datasource.ReadResponse) {
-	var data sqlserverflexbetaGen.InstanceModel
+	var data dataSourceModel
 
 	// Read Terraform configuration data into the model
 	resp.Diagnostics.Append(req.Config.Get(ctx, &data)...)

stackit/internal/services/sqlserverflexbeta/instance/datasources_gen/instance_data_source_gen.go

@@ -65,7 +65,7 @@ func InstanceDataSourceSchema(ctx context.Context) schema.Schema {
 				Description:         "The id of the instance flavor.",
 				MarkdownDescription: "The id of the instance flavor.",
 			},
-			"id": schema.StringAttribute{
+			"tf_original_api_id": schema.StringAttribute{
 				Computed:            true,
 				Description:         "The ID of the instance.",
 				MarkdownDescription: "The ID of the instance.",
@@ -178,7 +178,7 @@ type InstanceModel struct {
 	Edition        types.String    `tfsdk:"edition"`
 	Encryption     EncryptionValue `tfsdk:"encryption"`
 	FlavorId       types.String    `tfsdk:"flavor_id"`
-	Id             types.String    `tfsdk:"id"`
+	Id             types.String    `tfsdk:"tf_original_api_id"`
 	InstanceId     types.String    `tfsdk:"instance_id"`
 	IsDeletable    types.Bool      `tfsdk:"is_deletable"`
 	Name           types.String    `tfsdk:"name"`

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

@@ -84,7 +84,7 @@ func mapResponseToModel(
 func mapDataResponseToModel(
 	ctx context.Context,
 	resp *sqlserverflexbeta.GetInstanceResponse,
-	m *sqlserverflexbetaDataGen.InstanceModel,
+	m *dataSourceModel,
 	tfDiags diag.Diagnostics,
 ) error {
 	m.BackupSchedule = types.StringValue(resp.GetBackupSchedule())
@@ -181,7 +181,7 @@ func handleEncryption(
 }
 
 func handleDSEncryption(
-	m *sqlserverflexbetaDataGen.InstanceModel,
+	m *dataSourceModel,
 	resp *sqlserverflexbeta.GetInstanceResponse,
 ) sqlserverflexbetaDataGen.EncryptionValue {
 	if !resp.HasEncryption() ||

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

@@ -43,21 +43,48 @@ type instanceResource struct {
 	providerData core.ProviderData
 }
 
+// resourceModel describes the resource data model.
+type resourceModel = sqlserverflexbetaResGen.InstanceModel
+
 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) {
+func (r *instanceResource) Metadata(
+	ctx context.Context,
+	req resource.MetadataRequest,
+	resp *resource.MetadataResponse,
+) {
 	resp.TypeName = req.ProviderTypeName + "_sqlserverflexbeta_instance"
 }
 
+//go:embed planModifiers.yaml
+var modifiersFileByte []byte
+
 func (r *instanceResource) Schema(ctx context.Context, req resource.SchemaRequest, resp *resource.SchemaResponse) {
-	resp.Schema = sqlserverflexbetaResGen.InstanceResourceSchema(ctx)
+	s := sqlserverflexbetaResGen.InstanceResourceSchema(ctx)
+
+	fields, err := utils.ReadModifiersConfig(modifiersFileByte)
+	if err != nil {
+		resp.Diagnostics.AddError("error during read modifiers config file", err.Error())
+		return
+	}
+
+	err = utils.AddPlanModifiersToResourceSchema(fields, &s)
+	if err != nil {
+		resp.Diagnostics.AddError("error adding plan modifiers", err.Error())
+		return
+	}
+	resp.Schema = s
 }
 
-func (r *instanceResource) IdentitySchema(_ context.Context, _ resource.IdentitySchemaRequest, resp *resource.IdentitySchemaResponse) {
+func (r *instanceResource) IdentitySchema(
+	_ context.Context,
+	_ resource.IdentitySchemaRequest,
+	resp *resource.IdentitySchemaResponse,
+) {
 	resp.IdentitySchema = identityschema.Schema{
 		Attributes: map[string]identityschema.Attribute{
 			"project_id": identityschema.StringAttribute{
@@ -90,7 +117,10 @@ func (r *instanceResource) Configure(
 		utils.UserAgentConfigOption(r.providerData.Version),
 	}
 	if r.providerData.SQLServerFlexCustomEndpoint != "" {
-		apiClientConfigOptions = append(apiClientConfigOptions, config.WithEndpoint(r.providerData.SQLServerFlexCustomEndpoint))
+		apiClientConfigOptions = append(
+			apiClientConfigOptions,
+			config.WithEndpoint(r.providerData.SQLServerFlexCustomEndpoint),
+		)
 	} else {
 		apiClientConfigOptions = append(apiClientConfigOptions, config.WithRegion(r.providerData.GetRegion()))
 	}
@@ -121,7 +151,7 @@ func (r *instanceResource) ModifyPlan(
 	if req.Config.Raw.IsNull() {
 		return
 	}
-	var configModel sqlserverflexbetaResGen.InstanceModel
+	var configModel resourceModel
 	resp.Diagnostics.Append(req.Config.Get(ctx, &configModel)...)
 	if resp.Diagnostics.HasError() {
 		return
@@ -147,11 +177,8 @@ func (r *instanceResource) ModifyPlan(
 	}
 }
 
-//go:embed planModifiers.yaml
-var modifiersFileByte []byte
-
 func (r *instanceResource) Create(ctx context.Context, req resource.CreateRequest, resp *resource.CreateResponse) {
-	var data sqlserverflexbetaResGen.InstanceModel
+	var data resourceModel
 	crateErr := "[SQL Server Flex BETA - Create] error"
 
 	// Read Terraform plan data into the model
@@ -257,7 +284,7 @@ func (r *instanceResource) Create(ctx context.Context, req resource.CreateReques
 }
 
 func (r *instanceResource) Read(ctx context.Context, req resource.ReadRequest, resp *resource.ReadResponse) {
-	var data sqlserverflexbetaResGen.InstanceModel
+	var data resourceModel
 
 	// Read Terraform prior state data into the model
 	resp.Diagnostics.Append(req.State.Get(ctx, &data)...)
@@ -324,7 +351,7 @@ func (r *instanceResource) Read(ctx context.Context, req resource.ReadRequest, r
 }
 
 func (r *instanceResource) Update(ctx context.Context, req resource.UpdateRequest, resp *resource.UpdateResponse) {
-	var data sqlserverflexbetaResGen.InstanceModel
+	var data resourceModel
 	updateInstanceError := "Error updating instance"
 
 	resp.Diagnostics.Append(req.Plan.Get(ctx, &data)...)
@@ -411,7 +438,7 @@ func (r *instanceResource) Update(ctx context.Context, req resource.UpdateReques
 }
 
 func (r *instanceResource) Delete(ctx context.Context, req resource.DeleteRequest, resp *resource.DeleteResponse) {
-	var data sqlserverflexbetaResGen.InstanceModel
+	var data resourceModel
 
 	// Read Terraform prior state data into the model
 	resp.Diagnostics.Append(req.State.Get(ctx, &data)...)
@@ -484,9 +511,13 @@ func (r *instanceResource) ImportState(
 		idParts := strings.Split(req.ID, core.Separator)
 
 		if len(idParts) != 3 || idParts[0] == "" || idParts[1] == "" || idParts[2] == "" {
-			core.LogAndAddError(ctx, &resp.Diagnostics,
+			core.LogAndAddError(
+				ctx, &resp.Diagnostics,
 				"Error importing instance",
-				fmt.Sprintf("Expected import identifier with format: [project_id],[region],[instance_id]  Got: %q", req.ID),
+				fmt.Sprintf(
+					"Expected import identifier with format: [project_id],[region],[instance_id]  Got: %q",
+					req.ID,
+				),
 			)
 			return
 		}
@@ -497,25 +528,20 @@ func (r *instanceResource) ImportState(
 		return
 	}
 
+	// If no ID is provided, attempt to read identity attributes from the import configuration
 	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())...)
+	projectId := identityData.ProjectID.ValueString()
+	region := identityData.Region.ValueString()
+	instanceId := identityData.InstanceID.ValueString()
+
+	resp.Diagnostics.Append(resp.State.SetAttribute(ctx, path.Root("project_id"), projectId)...)
+	resp.Diagnostics.Append(resp.State.SetAttribute(ctx, path.Root("region"), region)...)
+	resp.Diagnostics.Append(resp.State.SetAttribute(ctx, path.Root("instance_id"), instanceId)...)
 
 	tflog.Info(ctx, "Sqlserverflexbeta instance state imported")
 }

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

@@ -13,6 +13,7 @@ import (
 	"github.com/hashicorp/terraform-plugin-testing/helper/acctest"
 	"github.com/hashicorp/terraform-plugin-testing/helper/resource"
 	"github.com/hashicorp/terraform-plugin-testing/knownvalue"
+	"github.com/hashicorp/terraform-plugin-testing/plancheck"
 	"github.com/hashicorp/terraform-plugin-testing/statecheck"
 	"github.com/hashicorp/terraform-plugin-testing/terraform"
 	"github.com/hashicorp/terraform-plugin-testing/tfjsonpath"
@@ -160,6 +161,12 @@ func TestAccResourceExample_basic(t *testing.T) {
 			// test create
 			{
 				Config: exBefore,
+				ConfigPlanChecks: resource.ConfigPlanChecks{
+					PreApply: []plancheck.PlanCheck{
+						plancheck.ExpectResourceAction(resName, plancheck.ResourceActionCreate),
+						plancheck.ExpectNonEmptyPlan(),
+					},
+				},
 				ConfigStateChecks: []statecheck.StateCheck{
 					compareValuesSame.AddStateValue(
 						resName,

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

@@ -6,6 +6,7 @@ import (
 	"net/http"
 
 	"github.com/hashicorp/terraform-plugin-framework/datasource"
+	"github.com/hashicorp/terraform-plugin-framework/types"
 	"github.com/hashicorp/terraform-plugin-log/tflog"
 	"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"
@@ -25,12 +26,30 @@ func NewUserDataSource() datasource.DataSource {
 	return &userDataSource{}
 }
 
+type dataSourceModel struct {
+	DefaultDatabase types.String `tfsdk:"default_database"`
+	Host            types.String `tfsdk:"host"`
+	Id              types.Int64  `tfsdk:"id"`
+	InstanceId      types.String `tfsdk:"instance_id"`
+	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"`
+	UserId          types.Int64  `tfsdk:"user_id"`
+	Username        types.String `tfsdk:"username"`
+}
+
 type userDataSource struct {
 	client       *sqlserverflexbetaPkg.APIClient
 	providerData core.ProviderData
 }
 
-func (d *userDataSource) Metadata(_ context.Context, req datasource.MetadataRequest, resp *datasource.MetadataResponse) {
+func (d *userDataSource) Metadata(
+	_ context.Context,
+	req datasource.MetadataRequest,
+	resp *datasource.MetadataResponse,
+) {
 	resp.TypeName = req.ProviderTypeName + "_sqlserverflexbeta_user"
 }
 
@@ -59,7 +78,7 @@ func (d *userDataSource) Configure(
 }
 
 func (d *userDataSource) Read(ctx context.Context, req datasource.ReadRequest, resp *datasource.ReadResponse) {
-	var data sqlserverflexbetaGen.UserModel
+	var data dataSourceModel
 
 	// Read Terraform configuration data into the model
 	resp.Diagnostics.Append(req.Config.Get(ctx, &data)...)
@@ -72,13 +91,15 @@ func (d *userDataSource) Read(ctx context.Context, req datasource.ReadRequest, r
 
 	projectId := data.ProjectId.ValueString()
 	region := d.providerData.GetRegionWithOverride(data.Region)
-	userId := data.UserId.ValueString()
+	instanceId := data.InstanceId.ValueString()
+	userId := data.UserId.ValueInt64()
 
 	ctx = tflog.SetField(ctx, "project_id", projectId)
 	ctx = tflog.SetField(ctx, "region", region)
+	ctx = tflog.SetField(ctx, "instance_id", instanceId)
 	ctx = tflog.SetField(ctx, "user_id", userId)
 
-	userResp, err := d.client.GetUserRequest(ctx, projectId, region, userId).Execute()
+	userResp, err := d.client.GetUserRequest(ctx, projectId, region, instanceId, userId).Execute()
 	if err != nil {
 		utils.LogError(
 			ctx,

stackit/internal/services/sqlserverflexbeta/user/datasources_gen/user_data_source_gen.go

@@ -98,7 +98,7 @@ func UserDataSourceSchema(ctx context.Context) schema.Schema {
 			"users": schema.ListNestedAttribute{
 				NestedObject: schema.NestedAttributeObject{
 					Attributes: map[string]schema.Attribute{
-						"id": schema.Int64Attribute{
+						"tf_original_api_id": schema.Int64Attribute{
 							Computed:            true,
 							Description:         "The ID of the user.",
 							MarkdownDescription: "The ID of the user.",

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

@@ -3,13 +3,9 @@ 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"
@@ -18,11 +14,39 @@ import (
 func mapResponseToModel(
 	ctx context.Context,
 	resp *sqlserverflexbeta.GetUserResponse,
-	m *sqlserverflexbetaResGen.UserModel,
+	m *dataSourceModel,
 	tfDiags diag.Diagnostics,
 ) error {
+	if resp == nil {
+		return fmt.Errorf("response is nil")
+	}
+
+	m.Id = types.Int64Value(resp.GetId())
+	m.UserId = types.Int64Value(resp.GetId())
+	m.Username = types.StringValue(resp.GetUsername())
+	m.Port = types.Int64Value(resp.GetPort())
+	m.Host = types.StringValue(resp.GetHost())
+	m.DefaultDatabase = types.StringValue(resp.GetDefaultDatabase())
+	m.Status = types.StringValue(resp.GetStatus())
+
+	if resp.Roles != nil {
+		roles, diags := types.ListValueFrom(ctx, types.StringType, *resp.Roles)
+		tfDiags.Append(diags...)
+		if tfDiags.HasError() {
+			return fmt.Errorf("failed to map roles")
+		}
+		m.Roles = roles
+	} else {
+		m.Roles = types.ListNull(types.StringType)
+	}
+
+	if resp.Status != nil {
+		m.Status = types.StringValue(*resp.Status)
+	} else {
+		m.Status = types.StringNull()
+	}
+
 	// TODO: complete and refactor
-	m.Id = types.StringValue(resp.GetId())
 
 	/*
 		sampleList, diags := types.ListValueFrom(ctx, types.StringType, resp.GetList())
@@ -51,48 +75,63 @@ func mapResponseToModel(
 	return nil
 }
 
+// TODO: handle encryption field mapping when API supports it
 func handleEncryption(
-	m *sqlserverflexbetaResGen.UserModel,
+	m *dataSourceModel,
 	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 !resp.HasEncryption() ||
 
-		if m.Encryption.IsNull() || m.Encryption.IsUnknown() {
-			return sqlserverflexbetaResGen.NewEncryptionValueNull()
+			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
 		}
-		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
+		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
+	*/
+	return sqlserverflexbetaResGen.NewEncryptionValueNull()
 }
 
 func toCreatePayload(
 	ctx context.Context,
-	model *sqlserverflexbetaResGen.UserModel,
+	model *dataSourceModel,
 ) (*sqlserverflexbeta.CreateUserRequestPayload, error) {
 	if model == nil {
 		return nil, fmt.Errorf("nil model")
 	}
 
+	var roles []sqlserverflexbeta.UserRole
+	if !model.Roles.IsNull() && !model.Roles.IsUnknown() {
+		diags := model.Roles.ElementsAs(ctx, &roles, false)
+		if diags.HasError() {
+			return nil, fmt.Errorf("failed to convert roles: %v", diags)
+		}
+	}
+
 	return &sqlserverflexbeta.CreateUserRequestPayload{
-		// TODO: fill fields
+		DefaultDatabase: model.DefaultDatabase.ValueStringPointer(),
+		Username:        model.Username.ValueStringPointer(),
+		Roles:           &roles,
 	}, nil
 }

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

@@ -0,0 +1,51 @@
+fields:
+  - name: 'id'
+    modifiers:
+      - 'UseStateForUnknown'
+
+  - name: 'user_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: 'region'
+    modifiers:
+      - 'RequiresReplace'
+
+  - name: 'user_id'
+    modifiers:
+      - 'RequiresReplace'
+
+  - name: 'username'
+    modifiers:
+      - 'UseStateForUnknown'
+
+  - name: 'roles'
+    modifiers:
+      - 'UseStateForUnknown'
+
+  - name: 'password'
+    modifiers:
+      - 'UseStateForUnknown'
+
+  - name: 'uri'
+    modifiers:
+      - 'UseStateForUnknown'
+
+  - name: 'status'
+    modifiers:
+      - 'UseStateForUnknown'

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

@@ -2,7 +2,9 @@ package sqlserverflexbeta
 
 import (
 	"context"
+	_ "embed"
 	"fmt"
+	"strconv"
 	"strings"
 
 	"github.com/hashicorp/terraform-plugin-framework/path"
@@ -11,9 +13,8 @@ import (
 	"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/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"
@@ -33,27 +34,52 @@ func NewUserResource() resource.Resource {
 	return &userResource{}
 }
 
+// resourceModel describes the resource data model.
+type resourceModel = sqlserverflexbetaResGen.UserModel
+
+// UserResourceIdentityModel describes the resource's identity attributes.
+type UserResourceIdentityModel struct {
+	ProjectID  types.String `tfsdk:"project_id"`
+	Region     types.String `tfsdk:"region"`
+	InstanceID types.String `tfsdk:"instance_id"`
+	UserID     types.Int64  `tfsdk:"database_id"`
+}
+
 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)
+//go:embed planModifiers.yaml
+var modifiersFileByte []byte
+
+func (r *userResource) Schema(ctx context.Context, _ resource.SchemaRequest, resp *resource.SchemaResponse) {
+
+	s := sqlserverflexbetaResGen.UserResourceSchema(ctx)
+
+	fields, err := utils.ReadModifiersConfig(modifiersFileByte)
+	if err != nil {
+		resp.Diagnostics.AddError("error during read modifiers config file", err.Error())
+		return
+	}
+
+	err = utils.AddPlanModifiersToResourceSchema(fields, &s)
+	if err != nil {
+		resp.Diagnostics.AddError("error adding plan modifiers", err.Error())
+		return
+	}
+	resp.Schema = s
 }
 
-func (r *instanceResource) IdentitySchema(_ context.Context, _ resource.IdentitySchemaRequest, resp *resource.IdentitySchemaResponse) {
+func (r *userResource) IdentitySchema(
+	_ context.Context,
+	_ resource.IdentitySchemaRequest,
+	resp *resource.IdentitySchemaResponse,
+) {
 	resp.IdentitySchema = identityschema.Schema{
 		Attributes: map[string]identityschema.Attribute{
 			"project_id": identityschema.StringAttribute{
@@ -85,8 +111,11 @@ func (r *userResource) Configure(
 		config.WithCustomAuth(r.providerData.RoundTripper),
 		utils.UserAgentConfigOption(r.providerData.Version),
 	}
-	if r.providerData.SqlserverflexbetaCustomEndpoint != "" {
-		apiClientConfigOptions = append(apiClientConfigOptions, config.WithEndpoint(r.providerData.sqlserverflexbetaCustomEndpoint))
+	if r.providerData.SQLServerFlexCustomEndpoint != "" {
+		apiClientConfigOptions = append(
+			apiClientConfigOptions,
+			config.WithEndpoint(r.providerData.SQLServerFlexCustomEndpoint),
+		)
 	} else {
 		apiClientConfigOptions = append(apiClientConfigOptions, config.WithRegion(r.providerData.GetRegion()))
 	}
@@ -106,7 +135,7 @@ func (r *userResource) Configure(
 }
 
 func (r *userResource) Create(ctx context.Context, req resource.CreateRequest, resp *resource.CreateResponse) {
-	var data sqlserverflexbetaResGen.UserModel
+	var data resourceModel
 
 	// Read Terraform plan data into the model
 	resp.Diagnostics.Append(req.Plan.Get(ctx, &data)...)
@@ -159,14 +188,14 @@ func (r *userResource) Create(ctx context.Context, req resource.CreateRequest, r
 	*/
 
 	// Example data value setting
-	data.UserId = types.StringValue("id-from-response")
+	//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),
+		//	UserID: types.StringValue(UserId),
 	}
 	resp.Diagnostics.Append(resp.Identity.Set(ctx, identity)...)
 	if resp.Diagnostics.HasError() {
@@ -228,7 +257,7 @@ func (r *userResource) Create(ctx context.Context, req resource.CreateRequest, r
 }
 
 func (r *userResource) Read(ctx context.Context, req resource.ReadRequest, resp *resource.ReadResponse) {
-	var data sqlserverflexbetaResGen.UserModel
+	var data resourceModel
 
 	// Read Terraform prior state data into the model
 	resp.Diagnostics.Append(req.State.Get(ctx, &data)...)
@@ -270,7 +299,7 @@ func (r *userResource) Read(ctx context.Context, req resource.ReadRequest, resp
 }
 
 func (r *userResource) Update(ctx context.Context, req resource.UpdateRequest, resp *resource.UpdateResponse) {
-	var data sqlserverflexbetaResGen.UserModel
+	var data resourceModel
 
 	// Read Terraform prior state data into the model
 	resp.Diagnostics.Append(req.State.Get(ctx, &data)...)
@@ -301,7 +330,7 @@ func (r *userResource) Update(ctx context.Context, req resource.UpdateRequest, r
 }
 
 func (r *userResource) Delete(ctx context.Context, req resource.DeleteRequest, resp *resource.DeleteResponse) {
-	var data sqlserverflexbetaResGen.UserModel
+	var data resourceModel
 
 	// Read Terraform prior state data into the model
 	resp.Diagnostics.Append(req.State.Get(ctx, &data)...)
@@ -335,7 +364,7 @@ func (r *userResource) ModifyPlan(
 	req resource.ModifyPlanRequest,
 	resp *resource.ModifyPlanResponse,
 ) { // nolint:gocritic // function signature required by Terraform
-	var configModel sqlserverflexbetaResGen.UserModel
+	var configModel resourceModel
 	// skip initial empty configuration to avoid follow-up errors
 	if req.Config.Raw.IsNull() {
 		return
@@ -345,7 +374,7 @@ func (r *userResource) ModifyPlan(
 		return
 	}
 
-	var planModel sqlserverflexbetaResGen.UserModel
+	var planModel resourceModel
 	resp.Diagnostics.Append(req.Plan.Get(ctx, &planModel)...)
 	if resp.Diagnostics.HasError() {
 		return
@@ -382,24 +411,61 @@ func (r *userResource) ImportState(
 	req resource.ImportStateRequest,
 	resp *resource.ImportStateResponse,
 ) {
-	idParts := strings.Split(req.ID, core.Separator)
+	ctx = core.InitProviderContext(ctx)
+
+	if req.ID != "" {
+
+		idParts := strings.Split(req.ID, core.Separator)
+
+		if len(idParts) != 4 || idParts[0] == "" || idParts[1] == "" || idParts[2] == "" || idParts[3] == "" {
+			core.LogAndAddError(
+				ctx, &resp.Diagnostics,
+				"Error importing user",
+				fmt.Sprintf(
+					"Expected import identifier with format [project_id],[region],[instance_id],[user_id], got %q",
+					req.ID,
+				),
+			)
+			return
+		}
+
+		userId, err := strconv.ParseInt(idParts[3], 10, 64)
+		if err != nil {
+			core.LogAndAddError(
+				ctx,
+				&resp.Diagnostics,
+				"Error importing user",
+				fmt.Sprintf("Invalid user_id format: %q. It must be a valid integer.", idParts[3]),
+			)
+			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])...)
+		resp.Diagnostics.Append(resp.State.SetAttribute(ctx, path.Root("user_id"), userId)...)
+
+		tflog.Info(ctx, "Sqlserverflexbeta user state imported")
 
-	// 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 ...
+	// If no ID is provided, attempt to read identity attributes from the import configuration
+	var identityData UserResourceIdentityModel
+	resp.Diagnostics.Append(req.Identity.Get(ctx, &identityData)...)
+	if resp.Diagnostics.HasError() {
+		return
+	}
+
+	projectId := identityData.ProjectID.ValueString()
+	region := identityData.Region.ValueString()
+	instanceId := identityData.InstanceID.ValueString()
+	userId := identityData.UserID.ValueInt64()
+
+	resp.Diagnostics.Append(resp.State.SetAttribute(ctx, path.Root("project_id"), projectId)...)
+	resp.Diagnostics.Append(resp.State.SetAttribute(ctx, path.Root("region"), region)...)
+	resp.Diagnostics.Append(resp.State.SetAttribute(ctx, path.Root("instance_id"), instanceId)...)
+	resp.Diagnostics.Append(resp.State.SetAttribute(ctx, path.Root("user_id"), userId)...)
 
 	core.LogAndAddWarning(
 		ctx,
@@ -408,4 +474,5 @@ func (r *userResource) ImportState(
 		"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/versions/datasources_gen/version_data_source_gen.go

@@ -0,0 +1,569 @@
+// Code generated by terraform-plugin-framework-generator DO NOT EDIT.
+
+package sqlserverflexbeta
+
+import (
+	"context"
+	"fmt"
+	"github.com/hashicorp/terraform-plugin-framework-validators/stringvalidator"
+	"github.com/hashicorp/terraform-plugin-framework/attr"
+	"github.com/hashicorp/terraform-plugin-framework/diag"
+	"github.com/hashicorp/terraform-plugin-framework/schema/validator"
+	"github.com/hashicorp/terraform-plugin-framework/types"
+	"github.com/hashicorp/terraform-plugin-framework/types/basetypes"
+	"github.com/hashicorp/terraform-plugin-go/tftypes"
+	"strings"
+
+	"github.com/hashicorp/terraform-plugin-framework/datasource/schema"
+)
+
+func VersionDataSourceSchema(ctx context.Context) schema.Schema {
+	return schema.Schema{
+		Attributes: map[string]schema.Attribute{
+			"project_id": schema.StringAttribute{
+				Required:            true,
+				Description:         "The STACKIT project ID.",
+				MarkdownDescription: "The STACKIT project ID.",
+			},
+			"region": schema.StringAttribute{
+				Required:            true,
+				Description:         "The region which should be addressed",
+				MarkdownDescription: "The region which should be addressed",
+				Validators: []validator.String{
+					stringvalidator.OneOf(
+						"eu01",
+					),
+				},
+			},
+			"versions": schema.ListNestedAttribute{
+				NestedObject: schema.NestedAttributeObject{
+					Attributes: map[string]schema.Attribute{
+						"beta": schema.BoolAttribute{
+							Computed:            true,
+							Description:         "Flag if the version is a beta version. If set the version may contain bugs and is not fully tested.",
+							MarkdownDescription: "Flag if the version is a beta version. If set the version may contain bugs and is not fully tested.",
+						},
+						"deprecated": schema.StringAttribute{
+							Computed:            true,
+							Description:         "Timestamp in RFC3339 format which says when the version will no longer be supported by STACKIT.",
+							MarkdownDescription: "Timestamp in RFC3339 format which says when the version will no longer be supported by STACKIT.",
+						},
+						"recommend": schema.BoolAttribute{
+							Computed:            true,
+							Description:         "Flag if the version is recommend by the STACKIT Team.",
+							MarkdownDescription: "Flag if the version is recommend by the STACKIT Team.",
+						},
+						"version": schema.StringAttribute{
+							Computed:            true,
+							Description:         "The sqlserver version used for the instance.",
+							MarkdownDescription: "The sqlserver version used for the instance.",
+						},
+					},
+					CustomType: VersionsType{
+						ObjectType: types.ObjectType{
+							AttrTypes: VersionsValue{}.AttributeTypes(ctx),
+						},
+					},
+				},
+				Computed:            true,
+				Description:         "A list containing available sqlserver versions.",
+				MarkdownDescription: "A list containing available sqlserver versions.",
+			},
+		},
+	}
+}
+
+type VersionModel struct {
+	ProjectId types.String `tfsdk:"project_id"`
+	Region    types.String `tfsdk:"region"`
+	Versions  types.List   `tfsdk:"versions"`
+}
+
+var _ basetypes.ObjectTypable = VersionsType{}
+
+type VersionsType struct {
+	basetypes.ObjectType
+}
+
+func (t VersionsType) Equal(o attr.Type) bool {
+	other, ok := o.(VersionsType)
+
+	if !ok {
+		return false
+	}
+
+	return t.ObjectType.Equal(other.ObjectType)
+}
+
+func (t VersionsType) String() string {
+	return "VersionsType"
+}
+
+func (t VersionsType) ValueFromObject(ctx context.Context, in basetypes.ObjectValue) (basetypes.ObjectValuable, diag.Diagnostics) {
+	var diags diag.Diagnostics
+
+	attributes := in.Attributes()
+
+	betaAttribute, ok := attributes["beta"]
+
+	if !ok {
+		diags.AddError(
+			"Attribute Missing",
+			`beta is missing from object`)
+
+		return nil, diags
+	}
+
+	betaVal, ok := betaAttribute.(basetypes.BoolValue)
+
+	if !ok {
+		diags.AddError(
+			"Attribute Wrong Type",
+			fmt.Sprintf(`beta expected to be basetypes.BoolValue, was: %T`, betaAttribute))
+	}
+
+	deprecatedAttribute, ok := attributes["deprecated"]
+
+	if !ok {
+		diags.AddError(
+			"Attribute Missing",
+			`deprecated is missing from object`)
+
+		return nil, diags
+	}
+
+	deprecatedVal, ok := deprecatedAttribute.(basetypes.StringValue)
+
+	if !ok {
+		diags.AddError(
+			"Attribute Wrong Type",
+			fmt.Sprintf(`deprecated expected to be basetypes.StringValue, was: %T`, deprecatedAttribute))
+	}
+
+	recommendAttribute, ok := attributes["recommend"]
+
+	if !ok {
+		diags.AddError(
+			"Attribute Missing",
+			`recommend is missing from object`)
+
+		return nil, diags
+	}
+
+	recommendVal, ok := recommendAttribute.(basetypes.BoolValue)
+
+	if !ok {
+		diags.AddError(
+			"Attribute Wrong Type",
+			fmt.Sprintf(`recommend expected to be basetypes.BoolValue, was: %T`, recommendAttribute))
+	}
+
+	versionAttribute, ok := attributes["version"]
+
+	if !ok {
+		diags.AddError(
+			"Attribute Missing",
+			`version is missing from object`)
+
+		return nil, diags
+	}
+
+	versionVal, ok := versionAttribute.(basetypes.StringValue)
+
+	if !ok {
+		diags.AddError(
+			"Attribute Wrong Type",
+			fmt.Sprintf(`version expected to be basetypes.StringValue, was: %T`, versionAttribute))
+	}
+
+	if diags.HasError() {
+		return nil, diags
+	}
+
+	return VersionsValue{
+		Beta:       betaVal,
+		Deprecated: deprecatedVal,
+		Recommend:  recommendVal,
+		Version:    versionVal,
+		state:      attr.ValueStateKnown,
+	}, diags
+}
+
+func NewVersionsValueNull() VersionsValue {
+	return VersionsValue{
+		state: attr.ValueStateNull,
+	}
+}
+
+func NewVersionsValueUnknown() VersionsValue {
+	return VersionsValue{
+		state: attr.ValueStateUnknown,
+	}
+}
+
+func NewVersionsValue(attributeTypes map[string]attr.Type, attributes map[string]attr.Value) (VersionsValue, diag.Diagnostics) {
+	var diags diag.Diagnostics
+
+	// Reference: https://github.com/hashicorp/terraform-plugin-framework/issues/521
+	ctx := context.Background()
+
+	for name, attributeType := range attributeTypes {
+		attribute, ok := attributes[name]
+
+		if !ok {
+			diags.AddError(
+				"Missing VersionsValue Attribute Value",
+				"While creating a VersionsValue value, a missing attribute value was detected. "+
+					"A VersionsValue must contain values for all attributes, even if null or unknown. "+
+					"This is always an issue with the provider and should be reported to the provider developers.\n\n"+
+					fmt.Sprintf("VersionsValue Attribute Name (%s) Expected Type: %s", name, attributeType.String()),
+			)
+
+			continue
+		}
+
+		if !attributeType.Equal(attribute.Type(ctx)) {
+			diags.AddError(
+				"Invalid VersionsValue Attribute Type",
+				"While creating a VersionsValue value, an invalid attribute value was detected. "+
+					"A VersionsValue must use a matching attribute type for the value. "+
+					"This is always an issue with the provider and should be reported to the provider developers.\n\n"+
+					fmt.Sprintf("VersionsValue Attribute Name (%s) Expected Type: %s\n", name, attributeType.String())+
+					fmt.Sprintf("VersionsValue Attribute Name (%s) Given Type: %s", name, attribute.Type(ctx)),
+			)
+		}
+	}
+
+	for name := range attributes {
+		_, ok := attributeTypes[name]
+
+		if !ok {
+			diags.AddError(
+				"Extra VersionsValue Attribute Value",
+				"While creating a VersionsValue value, an extra attribute value was detected. "+
+					"A VersionsValue must not contain values beyond the expected attribute types. "+
+					"This is always an issue with the provider and should be reported to the provider developers.\n\n"+
+					fmt.Sprintf("Extra VersionsValue Attribute Name: %s", name),
+			)
+		}
+	}
+
+	if diags.HasError() {
+		return NewVersionsValueUnknown(), diags
+	}
+
+	betaAttribute, ok := attributes["beta"]
+
+	if !ok {
+		diags.AddError(
+			"Attribute Missing",
+			`beta is missing from object`)
+
+		return NewVersionsValueUnknown(), diags
+	}
+
+	betaVal, ok := betaAttribute.(basetypes.BoolValue)
+
+	if !ok {
+		diags.AddError(
+			"Attribute Wrong Type",
+			fmt.Sprintf(`beta expected to be basetypes.BoolValue, was: %T`, betaAttribute))
+	}
+
+	deprecatedAttribute, ok := attributes["deprecated"]
+
+	if !ok {
+		diags.AddError(
+			"Attribute Missing",
+			`deprecated is missing from object`)
+
+		return NewVersionsValueUnknown(), diags
+	}
+
+	deprecatedVal, ok := deprecatedAttribute.(basetypes.StringValue)
+
+	if !ok {
+		diags.AddError(
+			"Attribute Wrong Type",
+			fmt.Sprintf(`deprecated expected to be basetypes.StringValue, was: %T`, deprecatedAttribute))
+	}
+
+	recommendAttribute, ok := attributes["recommend"]
+
+	if !ok {
+		diags.AddError(
+			"Attribute Missing",
+			`recommend is missing from object`)
+
+		return NewVersionsValueUnknown(), diags
+	}
+
+	recommendVal, ok := recommendAttribute.(basetypes.BoolValue)
+
+	if !ok {
+		diags.AddError(
+			"Attribute Wrong Type",
+			fmt.Sprintf(`recommend expected to be basetypes.BoolValue, was: %T`, recommendAttribute))
+	}
+
+	versionAttribute, ok := attributes["version"]
+
+	if !ok {
+		diags.AddError(
+			"Attribute Missing",
+			`version is missing from object`)
+
+		return NewVersionsValueUnknown(), diags
+	}
+
+	versionVal, ok := versionAttribute.(basetypes.StringValue)
+
+	if !ok {
+		diags.AddError(
+			"Attribute Wrong Type",
+			fmt.Sprintf(`version expected to be basetypes.StringValue, was: %T`, versionAttribute))
+	}
+
+	if diags.HasError() {
+		return NewVersionsValueUnknown(), diags
+	}
+
+	return VersionsValue{
+		Beta:       betaVal,
+		Deprecated: deprecatedVal,
+		Recommend:  recommendVal,
+		Version:    versionVal,
+		state:      attr.ValueStateKnown,
+	}, diags
+}
+
+func NewVersionsValueMust(attributeTypes map[string]attr.Type, attributes map[string]attr.Value) VersionsValue {
+	object, diags := NewVersionsValue(attributeTypes, attributes)
+
+	if diags.HasError() {
+		// This could potentially be added to the diag package.
+		diagsStrings := make([]string, 0, len(diags))
+
+		for _, diagnostic := range diags {
+			diagsStrings = append(diagsStrings, fmt.Sprintf(
+				"%s | %s | %s",
+				diagnostic.Severity(),
+				diagnostic.Summary(),
+				diagnostic.Detail()))
+		}
+
+		panic("NewVersionsValueMust received error(s): " + strings.Join(diagsStrings, "\n"))
+	}
+
+	return object
+}
+
+func (t VersionsType) ValueFromTerraform(ctx context.Context, in tftypes.Value) (attr.Value, error) {
+	if in.Type() == nil {
+		return NewVersionsValueNull(), nil
+	}
+
+	if !in.Type().Equal(t.TerraformType(ctx)) {
+		return nil, fmt.Errorf("expected %s, got %s", t.TerraformType(ctx), in.Type())
+	}
+
+	if !in.IsKnown() {
+		return NewVersionsValueUnknown(), nil
+	}
+
+	if in.IsNull() {
+		return NewVersionsValueNull(), nil
+	}
+
+	attributes := map[string]attr.Value{}
+
+	val := map[string]tftypes.Value{}
+
+	err := in.As(&val)
+
+	if err != nil {
+		return nil, err
+	}
+
+	for k, v := range val {
+		a, err := t.AttrTypes[k].ValueFromTerraform(ctx, v)
+
+		if err != nil {
+			return nil, err
+		}
+
+		attributes[k] = a
+	}
+
+	return NewVersionsValueMust(VersionsValue{}.AttributeTypes(ctx), attributes), nil
+}
+
+func (t VersionsType) ValueType(ctx context.Context) attr.Value {
+	return VersionsValue{}
+}
+
+var _ basetypes.ObjectValuable = VersionsValue{}
+
+type VersionsValue struct {
+	Beta       basetypes.BoolValue   `tfsdk:"beta"`
+	Deprecated basetypes.StringValue `tfsdk:"deprecated"`
+	Recommend  basetypes.BoolValue   `tfsdk:"recommend"`
+	Version    basetypes.StringValue `tfsdk:"version"`
+	state      attr.ValueState
+}
+
+func (v VersionsValue) ToTerraformValue(ctx context.Context) (tftypes.Value, error) {
+	attrTypes := make(map[string]tftypes.Type, 4)
+
+	var val tftypes.Value
+	var err error
+
+	attrTypes["beta"] = basetypes.BoolType{}.TerraformType(ctx)
+	attrTypes["deprecated"] = basetypes.StringType{}.TerraformType(ctx)
+	attrTypes["recommend"] = basetypes.BoolType{}.TerraformType(ctx)
+	attrTypes["version"] = basetypes.StringType{}.TerraformType(ctx)
+
+	objectType := tftypes.Object{AttributeTypes: attrTypes}
+
+	switch v.state {
+	case attr.ValueStateKnown:
+		vals := make(map[string]tftypes.Value, 4)
+
+		val, err = v.Beta.ToTerraformValue(ctx)
+
+		if err != nil {
+			return tftypes.NewValue(objectType, tftypes.UnknownValue), err
+		}
+
+		vals["beta"] = val
+
+		val, err = v.Deprecated.ToTerraformValue(ctx)
+
+		if err != nil {
+			return tftypes.NewValue(objectType, tftypes.UnknownValue), err
+		}
+
+		vals["deprecated"] = val
+
+		val, err = v.Recommend.ToTerraformValue(ctx)
+
+		if err != nil {
+			return tftypes.NewValue(objectType, tftypes.UnknownValue), err
+		}
+
+		vals["recommend"] = val
+
+		val, err = v.Version.ToTerraformValue(ctx)
+
+		if err != nil {
+			return tftypes.NewValue(objectType, tftypes.UnknownValue), err
+		}
+
+		vals["version"] = val
+
+		if err := tftypes.ValidateValue(objectType, vals); err != nil {
+			return tftypes.NewValue(objectType, tftypes.UnknownValue), err
+		}
+
+		return tftypes.NewValue(objectType, vals), nil
+	case attr.ValueStateNull:
+		return tftypes.NewValue(objectType, nil), nil
+	case attr.ValueStateUnknown:
+		return tftypes.NewValue(objectType, tftypes.UnknownValue), nil
+	default:
+		panic(fmt.Sprintf("unhandled Object state in ToTerraformValue: %s", v.state))
+	}
+}
+
+func (v VersionsValue) IsNull() bool {
+	return v.state == attr.ValueStateNull
+}
+
+func (v VersionsValue) IsUnknown() bool {
+	return v.state == attr.ValueStateUnknown
+}
+
+func (v VersionsValue) String() string {
+	return "VersionsValue"
+}
+
+func (v VersionsValue) ToObjectValue(ctx context.Context) (basetypes.ObjectValue, diag.Diagnostics) {
+	var diags diag.Diagnostics
+
+	attributeTypes := map[string]attr.Type{
+		"beta":       basetypes.BoolType{},
+		"deprecated": basetypes.StringType{},
+		"recommend":  basetypes.BoolType{},
+		"version":    basetypes.StringType{},
+	}
+
+	if v.IsNull() {
+		return types.ObjectNull(attributeTypes), diags
+	}
+
+	if v.IsUnknown() {
+		return types.ObjectUnknown(attributeTypes), diags
+	}
+
+	objVal, diags := types.ObjectValue(
+		attributeTypes,
+		map[string]attr.Value{
+			"beta":       v.Beta,
+			"deprecated": v.Deprecated,
+			"recommend":  v.Recommend,
+			"version":    v.Version,
+		})
+
+	return objVal, diags
+}
+
+func (v VersionsValue) Equal(o attr.Value) bool {
+	other, ok := o.(VersionsValue)
+
+	if !ok {
+		return false
+	}
+
+	if v.state != other.state {
+		return false
+	}
+
+	if v.state != attr.ValueStateKnown {
+		return true
+	}
+
+	if !v.Beta.Equal(other.Beta) {
+		return false
+	}
+
+	if !v.Deprecated.Equal(other.Deprecated) {
+		return false
+	}
+
+	if !v.Recommend.Equal(other.Recommend) {
+		return false
+	}
+
+	if !v.Version.Equal(other.Version) {
+		return false
+	}
+
+	return true
+}
+
+func (v VersionsValue) Type(ctx context.Context) attr.Type {
+	return VersionsType{
+		basetypes.ObjectType{
+			AttrTypes: v.AttributeTypes(ctx),
+		},
+	}
+}
+
+func (v VersionsValue) AttributeTypes(ctx context.Context) map[string]attr.Type {
+	return map[string]attr.Type{
+		"beta":       basetypes.BoolType{},
+		"deprecated": basetypes.StringType{},
+		"recommend":  basetypes.BoolType{},
+		"version":    basetypes.StringType{},
+	}
+}