azurerm_logic_app_standard - add default values to worker runtime

internal/services/logic/logic_app_standard_resource.go

@@ -286,6 +286,8 @@ func resourceLogicAppStandardCreate(d *pluginsdk.ResourceData, meta interface{})
 	appSettings := expandAppSettings(d)
 	appSettings = append(appSettings, basicAppSettings...)
 
+	appSettings = addDefaultWorkerRuntime(d, appSettings)
+
 	siteConfig.AppSettings = &appSettings
 
 	siteEnvelope := web.Site{
@@ -1247,7 +1249,7 @@ func expandLogicAppStandardSettings(d *pluginsdk.ResourceData, endpointSuffix st
 	if err != nil {
 		return nil, err
 	}
-	for _, p := range append(basicAppSettings, appSettings...) {
+	for _, p := range addDefaultWorkerRuntime(d, append(basicAppSettings, appSettings...)) {
 		output[*p.Name] = p.Value
 	}
 
@@ -1412,3 +1414,49 @@ func expandHeaders(input interface{}) map[string][]string {
 
 	return output
 }
+
+func addDefaultWorkerRuntime(d *pluginsdk.ResourceData, appSettings []web.NameValuePair) []web.NameValuePair {
+	functionVersion := d.Get("version").(string)
+	functionWorkerRuntimeName := "FUNCTIONS_WORKER_RUNTIME"
+	nodeDefaultVersionName := "WEBSITE_NODE_DEFAULT_VERSION"
+	functionWorkerRuntime, nodeDefaultVersion := expandWorkerRuntime(functionVersion)
+
+	appSettings = appendIfNotExist(appSettings, web.NameValuePair{Name: &functionWorkerRuntimeName, Value: &functionWorkerRuntime})
+	appSettings = appendIfNotExist(appSettings, web.NameValuePair{Name: &nodeDefaultVersionName, Value: &nodeDefaultVersion})
+
+	return appSettings
+}
+
+func appendIfNotExist(appSettings []web.NameValuePair, toAddSettings web.NameValuePair) []web.NameValuePair {
+	exist := false
+	for _, pair := range appSettings {
+		if pair != nil && *pair.Name == *toAddSettings.Name {
+			exist = true
+		}
+	}
+	if !exist {
+		appSettings = append(appSettings, toAddSettings)
+	}
+	return appSettings
+}
+
+func expandWorkerRuntime(version string) (worker string, nodeVersion string) {
+	switch version {
+	case "~1":
+		{
+			worker = "node"
+			nodeVersion = "~6"
+		}
+	case "~2":
+		{
+			worker = "node"
+			nodeVersion = "~8"
+		}
+	case "~3":
+		{
+			worker = "node"
+			nodeVersion = "~14"
+		}
+	}
+	return
+}

internal/services/logic/logic_app_standard_resource_test.go

@@ -101,6 +101,23 @@ func TestAccLogicAppStandard_appSettingsVnetRouteAllEnabled(t *testing.T) {
 	})
 }
 
+func TestAccLogicAppStandard_appSettingsWorkerRuntime(t *testing.T) {
+	data := acceptance.BuildTestData(t, "azurerm_logic_app_standard", "test")
+	r := LogicAppStandardResource{}
+
+	data.ResourceTest(t, r, []acceptance.TestStep{
+		{
+			Config: r.basic(data),
+			Check: acceptance.ComposeTestCheckFunc(
+				check.That(data.ResourceName).ExistsInAzure(r),
+				check.That(data.ResourceName).Key("app_settings.FUNCTIONS_WORKER_RUNTIME").HasValue("node"),
+				check.That(data.ResourceName).Key("app_settings.WEBSITE_NODE_DEFAULT_VERSION").HasValue("~14"),
+			),
+		},
+		data.ImportStep(),
+	})
+}
+
 func TestAccLogicAppStandard_requiresImport(t *testing.T) {
 	data := acceptance.BuildTestData(t, "azurerm_logic_app_standard", "test")
 	r := LogicAppStandardResource{}

website/docs/r/logic_app_standard.html.markdown

@@ -118,7 +118,9 @@ The following arguments are supported:
 
 * `app_settings` - (Optional) A map of key-value pairs for [App Settings](https://docs.microsoft.com/azure/azure-functions/functions-app-settings) and custom values.
 
-~> **NOTE:** There are a number of application settings that will be managed for you by this resource type and *shouldn't* be configured separately as part of the app_settings you specify.  `AzureWebJobsStorage` is filled based on `storage_account_name` and `storage_account_access_key`. `WEBSITE_CONTENTSHARE` is detailed below. `FUNCTIONS_EXTENSION_VERSION` is filled based on `version`. `APP_KIND` is set to workflowApp and `AzureFunctionsJobHost__extensionBundle__id` and `AzureFunctionsJobHost__extensionBundle__version` are set as detailed below.
+~> **NOTE:** There are a number of application settings that will be managed for you by this resource type and *shouldn't* be configured separately as part of the app_settings you specify.  `AzureWebJobsStorage` is filled based on `storage_account_name` and `storage_account_access_key`. `WEBSITE_CONTENTSHARE` is detailed below. `FUNCTIONS_EXTENSION_VERSION` is filled based on `version`. `APP_KIND` is set to workflowApp and `AzureFunctionsJobHost__extensionBundle__id` and `AzureFunctionsJobHost__extensionBundle__version` are set as detailed below..
+
+~> **NOTE:** There are a number of application settings wil be set to default value if not specified. `FUNCTIONS_WORKER_RUNTIME` is set to `node`, `WEBSITE_NODE_DEFAULT_VERSION` application settings will be set to default value based on `version` if not specified.
 
 * `use_extension_bundle` - (Optional) Should the logic app use the bundled extension package? If true, then application settings for `AzureFunctionsJobHost__extensionBundle__id` and `AzureFunctionsJobHost__extensionBundle__version` will be created. Default true