如何使用 Terraform 完全部署容器化 Azure Function App

Question

尝试在从容器提供功能的高级计划中部署功能应用。对此的 HOWTO 效果很好：https://docs.microsoft.com/en-us/azure/azure-functions/functions-create-function-linux-custom-image?tabs=nodejs#create-an-app-from-the-image

但是，当我尝试使用 Terraform 部署它时，没有销售。一切看起来都正确，但该功能没有显示在侧边菜单中（它适用于使用 az CLI 部署的那个），我也无法使用 Postman 来点击它。

通过资源浏览器，我可以看到函数没有被填充。这是我正在使用的 HCL

resource "azurerm_app_service_plan" "plan" {
  name                         = "${var.app_name}-Premium-ConsumptionPlan"
  location                     = "WestUS"
  resource_group_name          = "${data.azurerm_resource_group.rg.name}"
  kind                         = "Elastic"
  reserved                     = true

  sku {
    tier = "ElasticPremium"
    size = "EP1"
  }
}

data "azurerm_container_registry" "registry" {
  name = "${var.app_name}registry"
  resource_group_name = "${data.azurerm_resource_group.rg.name}"
}

resource "azurerm_function_app" "funcApp" {
    name                       = "${var.app_name}-userapi-${var.env_name}-funcapp"
    location                   = "WestUS"
    resource_group_name        = "${data.azurerm_resource_group.rg.name}"
    app_service_plan_id        = "${azurerm_app_service_plan.plan.id}"
    storage_connection_string  = "${azurerm_storage_account.storage.primary_connection_string}"
    version                    = "~2"

    app_settings = {
        FUNCTIONS_EXTENSION_VERSION               = "~2"
        FUNCTIONS_WORKER_RUNTIME                  = "dotnet"
        DOCKER_REGISTRY_SERVER_URL                = "${data.azurerm_container_registry.registry.login_server}"
        DOCKER_REGISTRY_SERVER_USERNAME           = "${data.azurerm_container_registry.registry.admin_username}"
        DOCKER_REGISTRY_SERVER_PASSWORD           = "${data.azurerm_container_registry.registry.admin_password}"
        WEBSITE_CONTENTAZUREFILECONNECTIONSTRING  = "${azurerm_storage_account.storage.primary_connection_string}"
        DOCKER_CUSTOM_IMAGE_NAME                  = "${data.azurerm_container_registry.registry.login_server}/pingtrigger:test"
        WEBSITE_CONTENTSHARE                      = "${azurerm_storage_account.storage.name}"
        FUNCTION_APP_EDIT_MODE                    = "readOnly"
    }

    site_config {
      always_on                 = true
      linux_fx_version          = "DOCKER|${data.azurerm_container_registry.registry.login_server}/pingtrigger:test"
    }
}

----- 根据答案更新---- 解决方案是指示 Function App 不使用存储来发现有关可用功能的元数据 - 这涉及将 WEBSITES_ENABLE_APP_SERVICE_STORAGE 设置为 false。这是我更新的脚本

resource "azurerm_app_service_plan" "plan" {
  name                    = "${var.app_name}-premiumPlan"
  resource_group_name     = "${data.azurerm_resource_group.rg.name}"
  location                = "${data.azurerm_resource_group.rg.location}"
  kind                    = "Linux"
  reserved                = true

  sku {
    tier = "Premium"
    size = "P1V2"
  }
}

data "azurerm_container_registry" "registry" {
  name                  = "${var.app_name}registry"
  resource_group_name   = "${data.azurerm_resource_group.rg.name}"
}

resource "azurerm_function_app" "funcApp" {
    name                       = "userapi-${var.app_name}fa-${var.env_name}"
    location                   = "${data.azurerm_resource_group.rg.location}"
    resource_group_name        = "${data.azurerm_resource_group.rg.name}"
    app_service_plan_id        = "${azurerm_app_service_plan.plan.id}"
    storage_connection_string  = "${azurerm_storage_account.storage.primary_connection_string}"
    version                    = "~2"

    app_settings = {
        FUNCTION_APP_EDIT_MODE                    = "readOnly"
        https_only                                = true
        DOCKER_REGISTRY_SERVER_URL                = "${data.azurerm_container_registry.registry.login_server}"
        DOCKER_REGISTRY_SERVER_USERNAME           = "${data.azurerm_container_registry.registry.admin_username}"
        DOCKER_REGISTRY_SERVER_PASSWORD           = "${data.azurerm_container_registry.registry.admin_password}"
        WEBSITES_ENABLE_APP_SERVICE_STORAGE       = false
    }

    site_config {
      always_on         = true
      linux_fx_version  = "DOCKER|${data.azurerm_container_registry.registry.login_server}/testimage:v1.0.1"
    }
}

Answer 1

要使用自定义 Docker 映像创建 Azure Function，我认为您的问题是您设置了环境变量 FUNCTIONS_WORKER_RUNTIME，这意味着您使用内置运行时，但您想使用自定义映像。通过我的测试，你只需要像这样配置函数应用：

resource "azurerm_function_app" "funcApp" {
    name                       = "${var.app_name}-userapi-${var.env_name}-funcapp"
    location                   = "${azurerm_resource_group.main.location}"
    resource_group_name        = "${azurerm_resource_group.main.name}"
    app_service_plan_id        = "${azurerm_app_service_plan.plan.id}"
    storage_connection_string  = "${azurerm_storage_account.storage.primary_connection_string}"
    version                    = "~2"

    app_settings = {
        FUNCTIONS_EXTENSION_VERSION               = "~2"
        DOCKER_REGISTRY_SERVER_URL                = "${data.azurerm_container_registry.registry.login_server}"
        DOCKER_REGISTRY_SERVER_USERNAME           = "${data.azurerm_container_registry.registry.admin_username}"
        DOCKER_REGISTRY_SERVER_PASSWORD           = "${data.azurerm_container_registry.registry.admin_password}"
        WEBSITE_CONTENTAZUREFILECONNECTIONSTRING  = "${azurerm_storage_account.storage.primary_connection_string}"
        WEBSITE_CONTENTSHARE                      = "${azurerm_storage_account.storage.name}"
        DOCKER_CUSTOM_IMAGE_NAME                  = "${data.azurerm_container_registry.registry.login_server}/pingtrigger:test"
    }

    site_config {
      always_on                 = true
      linux_fx_version          = "DOCKER|${data.azurerm_container_registry.registry.login_server}/pingtrigger:test"
    }
}

那么你只需要等待一段时间就可以创建了。