当我尝试部署我的wordpress应用程序时，为什么收到消息"502 bad gateway“

Question

我使用docker-compose文件在mysql中部署我的wordpress应用程序

version: "3.7"
services:
  db:
    image: mysql:5.7
    container_name: db
    volumes:
      - db_data:/var/lib/mysql
    restart: always
    environment:
      MYSQL_ROOT_PASSWORD: somewordpress
      MYSQL_DATABASE: wordpress
      MYSQL_USER: wordpress
      MYSQL_PASSWORD: wordpress
    
  wordpress:
    depends_on:
      - db
    image: wordpress:latest
    container_name: wordpress
    ports:
      - "8000:80"
    restart: always
    environment:
      WORDPRESS_DB_HOST: db:3306
      WORDPRESS_DB_USER: wordpress
      WORDPRESS_DB_PASSWORD: wordpress
      WORDPRESS_DB_NAME: wordpress
  phpmyadmin:
    image: phpmyadmin/phpmyadmin
    container_name: phpAdmin
    restart: always
    ports: 
        - 3333:80
    environment: 
        PMA_HOST: db
        MYSQL_ROOT_PASSWORD: somewordpress
volumes:
  db_data: {}

这是我的.travis.yml文件

services:
  - docker

script:
  - echo 'test complete'

after_succes:
    - docker-compose up -d

deploy:
  provider: elasticbeanstalk
  region: us-east-2
  app: demo-licenta
  env: Demolicenta-env
  bucket_name: elasticbeanstalk-us-east-2-836810127342
  bucket_path: licenta_demo
  on:
    branch: master
  acces_key_id: $AWS_ACCESS_KEY
  secret_access_key: $AWS_SECRET_KEY

当我运行docker-compose up -d时，这个应用程序在本地运行得很好。我已经检查了我在AWS上的日志，没有发现任何警告或错误。应用程序的健康状况在一开始是正常的，但过了一会儿就会变得很严重。

Answer 1

您需要在Elastic Beanstalk中设置日志记录，并检查日志中的错误。502是后端故障，所以它可能意味着DB故障以及PHP错误，没有日志就很难判断。

How to set up logging is EB