25fb4453f0
* chore: implement datasource * chore: register datasource --------- Co-authored-by: Andre Harms <andre.harms@stackit.cloud>
512 lines
16 KiB
Go
512 lines
16 KiB
Go
package postgresflexalpha
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import (
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"context"
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"errors"
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"fmt"
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"net/http"
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"strconv"
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"strings"
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"github.com/hashicorp/terraform-plugin-framework/path"
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"github.com/hashicorp/terraform-plugin-framework/resource"
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"github.com/hashicorp/terraform-plugin-framework/resource/schema"
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"github.com/hashicorp/terraform-plugin-framework/resource/schema/planmodifier"
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"github.com/hashicorp/terraform-plugin-framework/resource/schema/stringplanmodifier"
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"github.com/hashicorp/terraform-plugin-framework/schema/validator"
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"github.com/hashicorp/terraform-plugin-framework/types"
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"github.com/hashicorp/terraform-plugin-log/tflog"
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"github.com/mhenselin/terraform-provider-stackitprivatepreview/pkg/postgresflexalpha"
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"github.com/mhenselin/terraform-provider-stackitprivatepreview/stackit/internal/conversion"
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"github.com/mhenselin/terraform-provider-stackitprivatepreview/stackit/internal/core"
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postgresflexUtils "github.com/mhenselin/terraform-provider-stackitprivatepreview/stackit/internal/services/postgresflexalpha/utils"
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"github.com/mhenselin/terraform-provider-stackitprivatepreview/stackit/internal/utils"
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"github.com/mhenselin/terraform-provider-stackitprivatepreview/stackit/internal/validate"
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"github.com/stackitcloud/stackit-sdk-go/core/oapierror"
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)
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// Ensure the implementation satisfies the expected interfaces.
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var (
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_ resource.Resource = &databaseResource{}
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_ resource.ResourceWithConfigure = &databaseResource{}
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_ resource.ResourceWithImportState = &databaseResource{}
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_ resource.ResourceWithModifyPlan = &databaseResource{}
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)
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type Model struct {
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Id types.String `tfsdk:"id"` // needed by TF
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DatabaseId types.Int64 `tfsdk:"database_id"`
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InstanceId types.String `tfsdk:"instance_id"`
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ProjectId types.String `tfsdk:"project_id"`
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Name types.String `tfsdk:"name"`
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Owner types.String `tfsdk:"owner"`
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Region types.String `tfsdk:"region"`
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}
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// NewDatabaseResource is a helper function to simplify the provider implementation.
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func NewDatabaseResource() resource.Resource {
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return &databaseResource{}
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}
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// databaseResource is the resource implementation.
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type databaseResource struct {
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client *postgresflexalpha.APIClient
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providerData core.ProviderData
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}
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// ModifyPlan implements resource.ResourceWithModifyPlan.
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// Use the modifier to set the effective region in the current plan.
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func (r *databaseResource) ModifyPlan(
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ctx context.Context,
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req resource.ModifyPlanRequest,
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resp *resource.ModifyPlanResponse,
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) { // nolint:gocritic // function signature required by Terraform
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var configModel Model
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// skip initial empty configuration to avoid follow-up errors
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if req.Config.Raw.IsNull() {
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return
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}
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resp.Diagnostics.Append(req.Config.Get(ctx, &configModel)...)
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if resp.Diagnostics.HasError() {
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return
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}
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var planModel Model
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resp.Diagnostics.Append(req.Plan.Get(ctx, &planModel)...)
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if resp.Diagnostics.HasError() {
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return
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}
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utils.AdaptRegion(ctx, configModel.Region, &planModel.Region, r.providerData.GetRegion(), resp)
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if resp.Diagnostics.HasError() {
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return
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}
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resp.Diagnostics.Append(resp.Plan.Set(ctx, planModel)...)
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if resp.Diagnostics.HasError() {
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return
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}
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}
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// Metadata returns the resource type name.
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func (r *databaseResource) Metadata(_ context.Context, req resource.MetadataRequest, resp *resource.MetadataResponse) {
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resp.TypeName = req.ProviderTypeName + "_postgresflex_database"
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}
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// Configure adds the provider configured client to the resource.
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func (r *databaseResource) Configure(
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ctx context.Context,
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req resource.ConfigureRequest,
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resp *resource.ConfigureResponse,
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) {
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var ok bool
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r.providerData, ok = conversion.ParseProviderData(ctx, req.ProviderData, &resp.Diagnostics)
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if !ok {
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return
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}
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apiClient := postgresflexUtils.ConfigureClient(ctx, &r.providerData, &resp.Diagnostics)
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if resp.Diagnostics.HasError() {
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return
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}
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r.client = apiClient
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tflog.Info(ctx, "Postgres Flex database client configured")
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}
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// Schema defines the schema for the resource.
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func (r *databaseResource) Schema(_ context.Context, _ resource.SchemaRequest, resp *resource.SchemaResponse) {
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descriptions := map[string]string{
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"main": "Postgres Flex database resource schema. Must have a `region` specified in the provider configuration.",
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"id": "Terraform's internal resource ID. It is structured as \"`project_id`,`region`,`instance_id`,`database_id`\".",
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"database_id": "Database ID.",
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"instance_id": "ID of the Postgres Flex instance.",
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"project_id": "STACKIT project ID to which the instance is associated.",
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"name": "Database name.",
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"owner": "Username of the database owner.",
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"region": "The resource region. If not defined, the provider region is used.",
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}
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resp.Schema = schema.Schema{
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Description: descriptions["main"],
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Attributes: map[string]schema.Attribute{
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"id": schema.StringAttribute{
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Description: descriptions["id"],
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Computed: true,
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PlanModifiers: []planmodifier.String{
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stringplanmodifier.UseStateForUnknown(),
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},
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},
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"database_id": schema.StringAttribute{
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Description: descriptions["database_id"],
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Computed: true,
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PlanModifiers: []planmodifier.String{
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stringplanmodifier.UseStateForUnknown(),
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},
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Validators: []validator.String{
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validate.NoSeparator(),
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},
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},
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"instance_id": schema.StringAttribute{
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Description: descriptions["instance_id"],
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Required: true,
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PlanModifiers: []planmodifier.String{
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stringplanmodifier.RequiresReplace(),
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stringplanmodifier.UseStateForUnknown(),
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},
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Validators: []validator.String{
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validate.UUID(),
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validate.NoSeparator(),
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},
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},
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"project_id": schema.StringAttribute{
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Description: descriptions["project_id"],
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Required: true,
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PlanModifiers: []planmodifier.String{
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stringplanmodifier.RequiresReplace(),
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stringplanmodifier.UseStateForUnknown(),
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},
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Validators: []validator.String{
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validate.UUID(),
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validate.NoSeparator(),
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},
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},
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"name": schema.StringAttribute{
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Description: descriptions["name"],
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Required: true,
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PlanModifiers: []planmodifier.String{
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stringplanmodifier.RequiresReplace(),
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},
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},
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"owner": schema.StringAttribute{
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Description: descriptions["owner"],
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Required: true,
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PlanModifiers: []planmodifier.String{
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stringplanmodifier.RequiresReplace(),
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},
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},
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"region": schema.StringAttribute{
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Optional: true,
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// must be computed to allow for storing the override value from the provider
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Computed: true,
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Description: descriptions["region"],
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PlanModifiers: []planmodifier.String{
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stringplanmodifier.RequiresReplace(),
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},
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},
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},
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}
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}
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// Create creates the resource and sets the initial Terraform state.
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func (r *databaseResource) Create(
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ctx context.Context,
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req resource.CreateRequest,
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resp *resource.CreateResponse,
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) { // nolint:gocritic // function signature required by Terraform
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var model Model
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diags := req.Plan.Get(ctx, &model)
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resp.Diagnostics.Append(diags...)
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if resp.Diagnostics.HasError() {
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return
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}
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ctx = core.InitProviderContext(ctx)
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projectId := model.ProjectId.ValueString()
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region := model.Region.ValueString()
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instanceId := model.InstanceId.ValueString()
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ctx = tflog.SetField(ctx, "project_id", projectId)
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ctx = tflog.SetField(ctx, "instance_id", instanceId)
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ctx = tflog.SetField(ctx, "region", region)
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// Generate API request body from model
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payload, err := toCreatePayload(&model)
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if err != nil {
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core.LogAndAddError(
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ctx,
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&resp.Diagnostics,
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"Error creating database",
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fmt.Sprintf("Creating API payload: %v", err),
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)
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return
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}
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// Create new database
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databaseResp, err := r.client.CreateDatabaseRequest(
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ctx,
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projectId,
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region,
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instanceId,
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).CreateDatabaseRequestPayload(*payload).Execute()
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if err != nil {
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core.LogAndAddError(ctx, &resp.Diagnostics, "Error creating database", fmt.Sprintf("Calling API: %v", err))
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return
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}
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ctx = core.LogResponse(ctx)
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if databaseResp == nil || databaseResp.Id == nil {
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core.LogAndAddError(
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ctx,
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&resp.Diagnostics,
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"Error creating database",
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"API didn't return database Id. A database might have been created",
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)
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return
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}
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databaseId := *databaseResp.Id
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ctx = tflog.SetField(ctx, "database_id", databaseId)
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database, err := getDatabase(ctx, r.client, projectId, region, instanceId, databaseId)
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if err != nil {
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core.LogAndAddError(
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ctx,
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&resp.Diagnostics,
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"Error creating database",
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fmt.Sprintf("Getting database details after creation: %v", err),
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)
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return
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}
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// Map response body to schema
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err = mapFields(database, &model, region)
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if err != nil {
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core.LogAndAddError(
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ctx,
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&resp.Diagnostics,
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"Error creating database",
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fmt.Sprintf("Processing API payload: %v", err),
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)
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return
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}
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// Set state to fully populated data
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diags = resp.State.Set(ctx, model)
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resp.Diagnostics.Append(diags...)
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if resp.Diagnostics.HasError() {
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return
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}
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tflog.Info(ctx, "Postgres Flex database created")
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}
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// Read refreshes the Terraform state with the latest data.
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func (r *databaseResource) Read(
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ctx context.Context,
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req resource.ReadRequest,
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resp *resource.ReadResponse,
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) { // nolint:gocritic // function signature required by Terraform
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var model Model
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diags := req.State.Get(ctx, &model)
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resp.Diagnostics.Append(diags...)
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if resp.Diagnostics.HasError() {
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return
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}
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ctx = core.InitProviderContext(ctx)
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projectId := model.ProjectId.ValueString()
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instanceId := model.InstanceId.ValueString()
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databaseId := model.DatabaseId.ValueInt64()
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region := r.providerData.GetRegionWithOverride(model.Region)
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ctx = tflog.SetField(ctx, "project_id", projectId)
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ctx = tflog.SetField(ctx, "instance_id", instanceId)
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ctx = tflog.SetField(ctx, "database_id", databaseId)
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ctx = tflog.SetField(ctx, "region", region)
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databaseResp, err := getDatabase(ctx, r.client, projectId, region, instanceId, databaseId)
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if err != nil {
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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
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if (ok && oapiErr.StatusCode == http.StatusNotFound) || errors.Is(err, databaseNotFoundErr) {
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resp.State.RemoveResource(ctx)
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return
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}
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core.LogAndAddError(ctx, &resp.Diagnostics, "Error reading database", fmt.Sprintf("Calling API: %v", err))
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return
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}
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ctx = core.LogResponse(ctx)
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// Map response body to schema
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err = mapFields(databaseResp, &model, region)
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if err != nil {
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core.LogAndAddError(
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ctx,
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&resp.Diagnostics,
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"Error reading database",
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fmt.Sprintf("Processing API payload: %v", err),
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)
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return
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}
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// Set refreshed state
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diags = resp.State.Set(ctx, model)
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resp.Diagnostics.Append(diags...)
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if resp.Diagnostics.HasError() {
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return
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}
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tflog.Info(ctx, "Postgres Flex database read")
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}
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// Update updates the resource and sets the updated Terraform state on success.
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func (r *databaseResource) Update(
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ctx context.Context,
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_ resource.UpdateRequest,
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resp *resource.UpdateResponse,
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) { // nolint:gocritic // function signature required by Terraform
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// Update shouldn't be called
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core.LogAndAddError(ctx, &resp.Diagnostics, "Error updating database", "Database can't be updated")
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}
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// Delete deletes the resource and removes the Terraform state on success.
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func (r *databaseResource) Delete(
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ctx context.Context,
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req resource.DeleteRequest,
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resp *resource.DeleteResponse,
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) { // nolint:gocritic // function signature required by Terraform
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// Retrieve values from plan
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var model Model
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diags := req.State.Get(ctx, &model)
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resp.Diagnostics.Append(diags...)
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if resp.Diagnostics.HasError() {
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return
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}
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ctx = core.InitProviderContext(ctx)
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projectId := model.ProjectId.ValueString()
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instanceId := model.InstanceId.ValueString()
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databaseId := model.DatabaseId.ValueInt64()
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region := model.Region.ValueString()
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ctx = tflog.SetField(ctx, "project_id", projectId)
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ctx = tflog.SetField(ctx, "instance_id", instanceId)
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ctx = tflog.SetField(ctx, "database_id", databaseId)
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ctx = tflog.SetField(ctx, "region", region)
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// Delete existing record set
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err := r.client.DeleteDatabaseRequestExecute(ctx, projectId, region, instanceId, databaseId)
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if err != nil {
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core.LogAndAddError(ctx, &resp.Diagnostics, "Error deleting database", fmt.Sprintf("Calling API: %v", err))
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}
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ctx = core.LogResponse(ctx)
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tflog.Info(ctx, "Postgres Flex database deleted")
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}
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// ImportState imports a resource into the Terraform state on success.
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// The expected format of the resource import identifier is: project_id,zone_id,record_set_id
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func (r *databaseResource) ImportState(
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ctx context.Context,
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req resource.ImportStateRequest,
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resp *resource.ImportStateResponse,
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) {
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idParts := strings.Split(req.ID, core.Separator)
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if len(idParts) != 4 || idParts[0] == "" || idParts[1] == "" || idParts[2] == "" || idParts[3] == "" {
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core.LogAndAddError(
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ctx, &resp.Diagnostics,
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"Error importing database",
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fmt.Sprintf(
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"Expected import identifier with format [project_id],[region],[instance_id],[database_id], got %q",
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req.ID,
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),
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)
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return
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}
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resp.Diagnostics.Append(resp.State.SetAttribute(ctx, path.Root("project_id"), idParts[0])...)
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resp.Diagnostics.Append(resp.State.SetAttribute(ctx, path.Root("region"), idParts[1])...)
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resp.Diagnostics.Append(resp.State.SetAttribute(ctx, path.Root("instance_id"), idParts[2])...)
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resp.Diagnostics.Append(resp.State.SetAttribute(ctx, path.Root("database_id"), idParts[3])...)
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core.LogAndAddWarning(
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ctx,
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&resp.Diagnostics,
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"Postgresflex database imported with empty password",
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"The database password is not imported as it is only available upon creation of a new database. The password field will be empty.",
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)
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tflog.Info(ctx, "Postgres Flex database state imported")
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}
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func mapFields(databaseResp *postgresflexalpha.ListDatabase, model *Model, region string) error {
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if databaseResp == nil {
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return fmt.Errorf("response is nil")
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}
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if databaseResp.Id == nil || *databaseResp.Id == 0 {
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return fmt.Errorf("id not present")
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}
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if model == nil {
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return fmt.Errorf("model input is nil")
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}
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var databaseId int64
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if model.DatabaseId.ValueInt64() != 0 {
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databaseId = model.DatabaseId.ValueInt64()
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} else if databaseResp.Id != nil {
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databaseId = *databaseResp.Id
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} else {
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return fmt.Errorf("database id not present")
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}
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model.Id = utils.BuildInternalTerraformId(
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model.ProjectId.ValueString(), region, model.InstanceId.ValueString(), strconv.FormatInt(databaseId, 10),
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)
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model.DatabaseId = types.Int64Value(databaseId)
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model.Name = types.StringPointerValue(databaseResp.Name)
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model.Region = types.StringValue(region)
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ownerStr, err := mapOwner(databaseResp)
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if err != nil {
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return fmt.Errorf("error mapping owner: %v", err)
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}
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model.Owner = types.StringPointerValue(ownerStr)
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return nil
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}
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func mapOwner(databaseResp *postgresflexalpha.ListDatabase) (*string, error) {
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if databaseResp == nil {
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return nil, fmt.Errorf("response is nil")
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}
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if databaseResp.Owner == nil {
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return nil, nil
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}
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ownerStr := *databaseResp.Owner
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// If the field is returned between with quotes, we trim them to prevent an inconsistent result after apply
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ownerStr = strings.TrimPrefix(ownerStr, `"`)
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ownerStr = strings.TrimSuffix(ownerStr, `"`)
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return &ownerStr, nil
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}
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func toCreatePayload(model *Model) (*postgresflexalpha.CreateDatabaseRequestPayload, error) {
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if model == nil {
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return nil, fmt.Errorf("nil model")
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}
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return &postgresflexalpha.CreateDatabaseRequestPayload{
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Name: model.Name.ValueStringPointer(),
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Owner: model.Owner.ValueStringPointer(),
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}, nil
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}
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var databaseNotFoundErr = errors.New("database not found")
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// The API does not have a GetDatabase endpoint, only ListDatabases
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func getDatabase(
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ctx context.Context,
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client *postgresflexalpha.APIClient,
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projectId, region, instanceId string,
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databaseId int64,
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) (*postgresflexalpha.ListDatabase, error) {
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resp, err := client.ListDatabasesRequestExecute(ctx, projectId, region, instanceId)
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if err != nil {
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return nil, err
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}
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if resp == nil || resp.Databases == nil {
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return nil, fmt.Errorf("response is nil")
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}
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for _, database := range *resp.Databases {
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if database.Id != nil && *database.Id == databaseId {
|
|
return &database, nil
|
|
}
|
|
}
|
|
return nil, databaseNotFoundErr
|
|
}
|