Postgres 容器部署到 EBS 但在 ssh 到 EC2 时未运行

Question

我正在使用 React、Node、Postgres 和 Nginx 部署一个多级 docker 容器。 我为此使用了代码管道。 这里的问题是我能够成功运行、标记和部署到 ECR 中可用的容器，但是当我通过 ssh 进入由 EBS 环境创建和管理的 EC2 实例并执行docker ps我无法看到数据库容器在这里，所有其他三个容器在这里都可用，但是数据库容器没有运行，因此我无法与 Postgres 数据库通信。

我的 docker-compose-prod.yml文件

version: '3.3'
services:
  nginx:
    image: XXXXXXXX.dkr.ecr.us-east-2.amazonaws.com/nginx
    restart: always
    build:
      context: ./nginx
    ports:
      - '80:80'
  app:
    image: XXXXXXXX.dkr.ecr.us-east-2.amazonaws.com/app
    build:
      context: ./api
    volumes:
      - /app/node_modules
      - ./api:/app
    env_file:
      - ./api/.env
    ports:
      - '3001:3001'
  client:
    image: XXXXXXXX.dkr.ecr.us-east-2.amazonaws.com/client
    build:
      context: ./client
    volumes:
      - /app/node_modules
      - ./client:/app
    ports:
      - '3000:3000'
  db:
    image: XXXXXXXX.dkr.ecr.us-east-2.amazonaws.com/db
    build:
      context: ./postgres
    environment:
      POSTGRES_USER: postgres
      POSTGRES_PASSWORD: password
      POSTGRES_DB: postgres
    ports:
      - '5432:5432'
    volumes:
      - db-data:/var/lib/postgresql/data
volumes:
  db-data:

Dockerrun.aws.json

{
  "AWSEBDockerrunVersion": 2,
  "containerDefinitions": [
    {
      "name": "client",
      "image": "XXXXXXXX.dkr.ecr.us-east-2.amazonaws.com/client",
      "hostname": "client",
      "essential": false,
      "memory": 256
    },
    {
      "name": "app",
      "image": "XXXXXXXX.dkr.ecr.us-east-2.amazonaws.com/app",
      "hostname": "app",
      "essential": false,
      "memory": 128
    },
    {
      "name": "nginx",
      "image": "XXXXXXXX.dkr.ecr.us-east-2.amazonaws.com/nginx",
      "hostname": "nginx",
      "essential": true,
      "portMappings": [
        {
          "hostPort": 80,
          "containerPort": 80
        }
      ],
      "links": ["client", "app"],
      "memory": 64
    },
    {
      "name": "db",
      "image": "XXXXXXXX.dkr.ecr.us-east-2.amazonaws.com/db",
      "hostname": "db",
      "essential": false,
      "memory": 256
    }
  ]
}