Question

我一直试图将Redash设置为在ECS上运行。一般来说，我对ECS和Docker还是比较陌生的，所以我不确定目前所做的工作是否缺少基本知识。

到目前为止，我已经将Redash's docker-compose file转换为AWS容器定义。

但是，根据Redash文档，我需要先运行docker-compose run --rm server create_db才能在Postgres容器中设置表。

如何在ECS上下文中实现此docker-compose run行为？

我注意到尝试通过在容器定义中添加一个setup-postgres容器来强制这种行为是可行的，但这是不明智的选择。

[
  {
    "name": "postgres-setup",
    "image": "redash/redash:latest",
    "cpu": 100,
    "memory": 150,
    "links": [
      "postgres",
      "redis"
    ],
    "command": [
        "create_db"
    ],
    "environment": [
      {
        "name": "PYTHONUNBUFFERED",
        "value": "0"
      },
      {
        "name": "REDASH_LOG_LEVEL",
        "value": "INFO"
      },
      {
        "name": "REDASH_REDIS_URL",
        "value": "redis://redis:6379/0"
      },
      {
        "name": "REDASH_DATABASE_URL",
        "value": "postgresql://postgres@postgres/postgres"
      },
      {
        "name": "REDASH_COOKIE_SECRET",
        "value": "veryverysecret"
      },
      {
        "name": "REDASH_WEB_WORKERS",
        "value": "1"
      }
    ],
    "essential": false
  },
  {
    "name": "nginx",
    "image": "redash/nginx:latest",
    "essential": false,
    "cpu": 100,
    "memory": 200,
    "links": [
      "server:redash"
    ],
    "portMappings": [
      {
        "containerPort": 80,
        "hostPort": 80
      }
    ]
  },
  {
    "name": "postgres",
    "image": "postgres:9.5.6-alpine",
    "essential": true,
    "cpu": 100,
    "memory": 300,
    "mountPoints": [
      {
        "sourceVolume": "mytestvol",
        "containerPath": "/var/lib/postgresql/data"
      }
    ]
  },
  {
    "name": "redis",
    "image": "redis:3.0-alpine",
    "essential": true,
    "cpu": 100,
    "memory": 400
  },
  {
    "name": "server",
    "image": "redash/redash:latest",
    "cpu": 100,
    "memory": 400,
    "links": [
      "postgres",
      "redis"
    ],
    "command": [
        "server"
    ],
    "environment": [
      {
        "name": "PYTHONUNBUFFERED",
        "value": "0"
      },
      {
        "name": "REDASH_LOG_LEVEL",
        "value": "INFO"
      },
      {
        "name": "REDASH_REDIS_URL",
        "value": "redis://redis:6379/0"
      },
      {
        "name": "REDASH_DATABASE_URL",
        "value": "postgresql://postgres@postgres/postgres"
      },
      {
        "name": "REDASH_COOKIE_SECRET",
        "value": "veryverysecret"
      },
      {
        "name": "REDASH_WEB_WORKERS",
        "value": "1"
      }
    ],
    "essential": false,
    "portMappings": [
      {
        "containerPort": 5000,
        "hostPort": 5000
      }
    ]
  },
  {
    "name": "worker",
    "image": "redash/redash:latest",
    "cpu": 100,
    "memory": 400,
    "links": [
      "postgres",
      "redis"
    ],
    "command": [
      "scheduler"
    ],
    "environment": [
      {
        "name": "PYTHONUNBUFFERED",
        "value": "0"
      },
      {
        "name": "REDASH_LOG_LEVEL",
        "value": "INFO"
      },
      {
        "name": "REDASH_REDIS_URL",
        "value": "redis://redis:6379/0"
      },
      {
        "name": "REDASH_DATABASE_URL",
        "value": "postgresql://postgres@postgres/postgres"
      },
      {
        "name": "QUEUES",
        "value": "queries,scheduled_queries,celery"
      },
      {
        "name": "WORKERS_COUNT",
        "value": "1"
      }
    ],
    "essential": false
  }
]

我知道在这样的容器中运行Postgres是不理想的，以后可能会将其移入RDS。如果我决定这样做，那么数据库初始化步骤将是什么样？创建ECS实例，下载docker-compose.yml文件并运行docker-compose run --rm server create_db进行一次性设置，然后再启动ECS服务？

Answer 1

你没有。

您在这里看这两种错误的方式：

1）Docker Compose是开发工具，而不是生产工具。您可以在生产环境中使用撰写文件-但这将通过Docker Swarm使用，某些功能仅适用于docker-compose，而其他功能仅适用于Docker Swarm。

2）话虽如此-ECS是一个协调器，这就是Docker Swarm的本质（您想要的是什么）-因此，在ECS上运行Docker Swarm完全没有意义。

您要在此处创建的ECS任务定义已创建。这本质上是撰写文件的ECS版本。您可以设置映像，端口绑定，卷，容器链接等。

因此，您可以在此处选择是要在ECS中运行还是要设置Docker Swarm。

祝你好运！

docker-compose在ECS上运行

1 个答案: