通过 Azure 应用服务的 Terraform 脚本将变量传递给 Docker Compose [英] Passing Variables to Docker Compose via a Terraform script for an Azure App Service

问题描述

我该怎么做

VAR=VAULE docker-compose up

来自使用 Docker Compose 文件构建 Azure 应用服务的 Terraform 脚本

from a Terraform script building an Azure App Service using a Docker Compose file

 site_config {
    app_command_line = ""
    linux_fx_version = "COMPOSE|${filebase64("../docker-compose.yaml")}"
  }

我正在通过 terraform 成功构建 Azure 应用服务，该服务托管一个推送到 ACR 的 docker 容器.但是，我想将变量传递给我的 docker-compose.yaml 文件，但似乎无法找到它们的方法.

I'm successfully building an Azure App Service via terraform which hosts a docker container that is pushed to the ACR. However, I would like to pass variables to my docker-compose.yaml file and can't seem to figure out a way to them there.

docker compose 触发自

The docker compose is triggered from

  depends_on = [ null_resource.docker_push ]

  name                = "myapps-apps-appservice"
  location            = "${azurerm_resource_group.mine.location}"
  resource_group_name = "${azurerm_resource_group.mine.name}"
  app_service_plan_id = "${azurerm_app_service_plan.asp.id}"

  site_config {
    app_command_line = ""
    linux_fx_version = "COMPOSE|${filebase64("../docker-compose.yaml")}"
  }

  app_settings = {
    "WEBSITES_ENABLE_APP_SERVICE_STORAGE" = "false",
    "DOCKER_REGISTRY_SERVER_USERNAME" = azurerm_container_registry.container_registry.admin_username,
    "DOCKER_REGISTRY_SERVER_URL" = azurerm_container_registry.container_registry.login_server,
    "DOCKER_REGISTRY_SERVER_PASSWORD" = azurerm_container_registry.container_registry.admin_password
  }
}

我所有的 terraform 都是从 Azure Pipeline 中的部署脚本调用的(这些变量就是在其中设置的)

All of my terraform is called from a deployment script from an Azure Pipeline (that's where those variables are set)

terraform apply -auto-approve 
    -var "app_version=$VERSION" 
    -var "client_id=$ARM_CLIENT_ID" 
    -var "client_secret=$ARM_CLIENT_SECRET" 
    -var "tenant_id=$ARM_TENANT_ID" 
    -var "subscription_id=$ARM_SUBSCRIPTION_ID"

但是，当 docker-compose.yaml 文件被触发时，这些变量都无法访问.我什至尝试在部署脚本中执行以下操作:

However, none of those variables are accessible from within the docker-compose.yaml file when it's triggered. I've even tried doing the following within the deployment script:

export VERSION=1

docker-compose.yaml 片段

docker-compose.yaml snippnet

    image: "myacr.azurecr.io/my-container:${VERSION}"
    build: 
      context: ./my-container
      dockerfile: Dockerfile-prod
    container_name: my-container

有什么想法吗?

推荐答案

我找到了 sed 的解决方法.在我的部署脚本中，我只需使用 sed 替换 docker-compose.yaml 文件中的值，然后用令牌替换它们，以便版本控制保持不变.看起来有点hacky，但它有效:)

I found a work around with sed. During my deployment script, I just replace the values in my docker-compose.yaml file using sed and then replace them back with the token so that version control stays the same. Seems a bit hacky, but it works :)

eval "sed -i 's/MY_VERSION/$VERSION/' ../docker-compose.yaml"

cat ../docker-compose.yaml

terraform init 
terraform apply -auto-approve 
    -var "app_version=$VERSION" 
    -var "client_id=$ARM_CLIENT_ID" 
    -var "client_secret=$ARM_CLIENT_SECRET" 
    -var "tenant_id=$ARM_TENANT_ID" 
    -var "subscription_id=$ARM_SUBSCRIPTION_ID"

eval "sed -i 's/$VERSION/MY_VERSION/' ../docker-compose.yaml"

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