amazon-web-services - Docker compose ECS集成: load balancer is of type application,项目需要网络

Question

我有一个 docker-compose.yml 文件，如下所示:

version: "3.8"
x-aws-loadbalancer: "arn:aws:elasticloadbalancing:my-load-balancer"
services:
  fastapi:
    image: username/auth:FastAPI
    x-aws-pull_credentials: "arn:aws:secretsmanager:us-west-2:creds"
    build: FastAPI
    ports:
      - "5555:5555"
  nginx:
    image: username/auth:nginx
    x-aws-pull_credentials: "arn:aws:secretsmanager:us-west-2:creds"
    build: nginx
    ports:
      - "80:80"
    depends_on:
      - fastapi
networks:
  default:
    external: true
    name: my-sg

但是当尝试使用 docker compose up 将其与 ECS 集成时，我收到错误:

load balancer "arn:aws:elasticloadbalancing:my-load-balancer" is of type application, project require a network

我还尝试使用顶级 x-aws-vpc 属性提供 vpc，但收到了相同的错误。

什么

Answer 1

这是因为您正在使用端口 5555，docker-compose 无法知道该端口正在用于 HTTP，因此它假设您需要网络负载均衡器，因为 Application Load Balancer 仅支持HTTP。

每the documentation对于 ECS docker-compose 集成:

If services in the Compose file only expose ports 80 or 443, anApplication Load Balancer is created, otherwise ECS integration willprovision a Network Load Balancer. HTTP services using distinct portscan force use of an ALB by claiming the http protocol withx-aws-protocol custom extension within the port declaration:

因此，按照我链接的文档中的示例，我会尝试将 FastAPI 服务声明更改为以下内容:

  fastapi:
    image: username/auth:FastAPI
    x-aws-pull_credentials: "arn:aws:secretsmanager:us-west-2:creds"
    build: FastAPI
    ports:
      - "5555:5555"
        x-aws-protocol: http

或者可以将其更改为以下内容，以更紧密地匹配文档中的示例:

ports:
  - target: 5555
    x-aws-protocol: http