New Resource: azurerm_static_web_app_function_app_registration

internal/services/appservice/registration.go

@@ -52,6 +52,7 @@ func (r Registration) Resources() []sdk.Resource {
 		SourceControlSlotResource{},
 		StaticWebAppResource{},
 		StaticWebAppCustomDomainResource{},
+		StaticWebAppFunctionAppRegistrationResource{},
 		WebAppActiveSlotResource{},
 		WebAppHybridConnectionResource{},
 		WindowsFunctionAppResource{},

internal/services/appservice/static_web_app_function_app_registration_resource.go

@@ -0,0 +1,191 @@
+package appservice
+
+import (
+	"context"
+	"fmt"
+	"time"
+
+	"github.com/hashicorp/go-azure-helpers/lang/pointer"
+	"github.com/hashicorp/go-azure-helpers/lang/response"
+	"github.com/hashicorp/go-azure-helpers/resourcemanager/commonids"
+	"github.com/hashicorp/go-azure-helpers/resourcemanager/location"
+	"github.com/hashicorp/go-azure-sdk/resource-manager/web/2023-01-01/staticsites"
+	"github.com/hashicorp/terraform-provider-azurerm/internal/sdk"
+	"github.com/hashicorp/terraform-provider-azurerm/internal/tf/pluginsdk"
+)
+
+type StaticWebAppFunctionAppRegistrationResource struct{}
+
+var _ sdk.Resource = StaticWebAppFunctionAppRegistrationResource{}
+
+type StaticWebAppFunctionAppRegistrationModel struct {
+	StaticWebAppID string `tfschema:"static_web_app_id"`
+	FunctionAppID  string `tfschema:"function_app_id"`
+}
+
+func (r StaticWebAppFunctionAppRegistrationResource) ResourceType() string {
+	return "azurerm_static_web_app_function_app_registration"
+}
+
+func (r StaticWebAppFunctionAppRegistrationResource) ModelObject() interface{} {
+	return &StaticWebAppFunctionAppRegistrationModel{}
+}
+
+func (r StaticWebAppFunctionAppRegistrationResource) IDValidationFunc() pluginsdk.SchemaValidateFunc {
+	return staticsites.ValidateUserProvidedFunctionAppID
+}
+
+func (r StaticWebAppFunctionAppRegistrationResource) Arguments() map[string]*pluginsdk.Schema {
+	return map[string]*pluginsdk.Schema{
+		"static_web_app_id": {
+			Type:         pluginsdk.TypeString,
+			Required:     true,
+			ForceNew:     true,
+			ValidateFunc: staticsites.ValidateStaticSiteID,
+		},
+
+		"function_app_id": {
+			Type:         pluginsdk.TypeString,
+			Required:     true,
+			ForceNew:     true,
+			ValidateFunc: commonids.ValidateFunctionAppID,
+		},
+	}
+}
+
+func (r StaticWebAppFunctionAppRegistrationResource) Attributes() map[string]*pluginsdk.Schema {
+	return map[string]*pluginsdk.Schema{}
+}
+
+func (r StaticWebAppFunctionAppRegistrationResource) Create() sdk.ResourceFunc {
+	return sdk.ResourceFunc{
+		Timeout: 30 * time.Minute,
+		Func: func(ctx context.Context, metadata sdk.ResourceMetaData) error {
+			client := metadata.Client.AppService.StaticSitesClient
+			appClient := metadata.Client.AppService.WebAppsClient
+
+			model := StaticWebAppFunctionAppRegistrationModel{}
+
+			if err := metadata.Decode(&model); err != nil {
+				return err
+			}
+
+			staticAppId, err := staticsites.ParseStaticSiteID(model.StaticWebAppID)
+			if err != nil {
+				return err
+			}
+
+			functionAppId, err := commonids.ParseAppServiceID(model.FunctionAppID)
+			if err != nil {
+				return err
+			}
+
+			app, err := appClient.Get(ctx, *functionAppId)
+			if err != nil {
+				return fmt.Errorf("reading specified %s: %+v", *functionAppId, err)
+			}
+
+			loc := ""
+			if appModel := app.Model; appModel != nil {
+				loc = location.Normalize(appModel.Location)
+			}
+
+			id := staticsites.NewUserProvidedFunctionAppID(staticAppId.SubscriptionId, staticAppId.ResourceGroupName, staticAppId.StaticSiteName, functionAppId.SiteName)
+
+			existing, err := client.GetUserProvidedFunctionAppForStaticSite(ctx, id)
+			if err != nil {
+				if !response.WasNotFound(existing.HttpResponse) {
+					return fmt.Errorf("checking for presence of existing %s: %+v", id, err)
+				}
+			}
+			if !response.WasNotFound(existing.HttpResponse) {
+				return metadata.ResourceRequiresImport(r.ResourceType(), id)
+			}
+
+			backends, err := client.GetLinkedBackends(ctx, *staticAppId)
+			if err != nil {
+				return fmt.Errorf("checking for existing Static Site backends for %s: %+v", id, err)
+			}
+
+			if backendList := backends.Model; backendList != nil {
+				if len(*backendList) != 0 {
+					return fmt.Errorf("%s already has a backend and cannot have another", id)
+				}
+			}
+
+			payload := staticsites.StaticSiteUserProvidedFunctionAppARMResource{
+				Properties: &staticsites.StaticSiteUserProvidedFunctionAppARMResourceProperties{
+					FunctionAppRegion:     pointer.To(loc),
+					FunctionAppResourceId: pointer.To(functionAppId.ID()),
+				},
+			}
+
+			if err = client.RegisterUserProvidedFunctionAppWithStaticSiteThenPoll(ctx, id, payload, staticsites.DefaultRegisterUserProvidedFunctionAppWithStaticSiteOperationOptions()); err != nil {
+				return fmt.Errorf("creating %s: %+v", id, err)
+			}
+
+			metadata.SetID(id)
+
+			return nil
+		},
+	}
+}
+
+func (r StaticWebAppFunctionAppRegistrationResource) Read() sdk.ResourceFunc {
+	return sdk.ResourceFunc{
+		Timeout: 5 * time.Minute,
+		Func: func(ctx context.Context, metadata sdk.ResourceMetaData) error {
+			client := metadata.Client.AppService.StaticSitesClient
+
+			state := StaticWebAppFunctionAppRegistrationModel{}
+
+			id, err := staticsites.ParseUserProvidedFunctionAppID(metadata.ResourceData.Id())
+			if err != nil {
+				return err
+			}
+
+			state.StaticWebAppID = staticsites.NewStaticSiteID(id.SubscriptionId, id.ResourceGroupName, id.StaticSiteName).ID()
+
+			result, err := client.GetUserProvidedFunctionAppForStaticSite(ctx, *id)
+			if err != nil {
+				if response.WasNotFound(result.HttpResponse) {
+					return metadata.MarkAsGone(*id)
+				}
+				return fmt.Errorf("retrieving %s: %+v", *id, err)
+			}
+
+			if model := result.Model; model != nil {
+				if props := model.Properties; props != nil {
+					functionAppId, err := commonids.ParseAppServiceIDInsensitively(pointer.From(props.FunctionAppResourceId))
+					if err != nil {
+						return err
+					}
+
+					state.FunctionAppID = functionAppId.ID()
+				}
+			}
+
+			return metadata.Encode(&state)
+		},
+	}
+}
+
+func (r StaticWebAppFunctionAppRegistrationResource) Delete() sdk.ResourceFunc {
+	return sdk.ResourceFunc{
+		Timeout: 30 * time.Minute,
+		Func: func(ctx context.Context, metadata sdk.ResourceMetaData) error {
+			client := metadata.Client.AppService.StaticSitesClient
+
+			id, err := staticsites.ParseUserProvidedFunctionAppID(metadata.ResourceData.Id())
+			if err != nil {
+				return err
+			}
+
+			if _, err := client.DetachUserProvidedFunctionAppFromStaticSite(ctx, *id); err != nil {
+				return fmt.Errorf("deleting %s: %+v", *id, err)
+			}
+
+			return nil
+		},
+	}
+}