在travis上启动docker postgres时出错-

Question

在尝试连接到docker postgres容器时，我的travis-ci before_script出现了问题：Error starting userland proxy: listen tcp 0.0.0.0:5432: bind: address already in use

我已经看到这个问题被提出，但从来没有完全解决围绕SO和github的问题，我也不清楚它是特定于docker还是travis。一个相关的问题(如下)通过使用5433作为主机postgres地址来解决，但我想在开始之前确切地知道发生了什么。

我的travis.yml: sudo:需要的服务：- docker env: DOCKER_COMPOSE_VERSION: 1.7.1 DOCKER_VERSION: 1.11.1-0~trusty

before_install:
  # list docker-engine versions
  - apt-cache madison docker-engine
  # upgrade docker-engine to specific version
  - sudo apt-get -o Dpkg::Options::="--force-confnew" install -y docker-engine=${DOCKER_VERSION}
  # upgrade docker-compose
  - sudo rm /usr/local/bin/docker-compose
  - curl -L https://github.com/docker/compose/releases/download/${DOCKER_COMPOSE_VERSION}/docker-compose-`uname -s`-`uname -m` > docker-compose
  - chmod +x docker-compose
  - sudo mv docker-compose /usr/local/bin
before_script:
  - echo "Before Script:"
  - docker-compose -f docker-compose.ci.yml build
  - docker-compose -f docker-compose.ci.yml run app rake db:setup
  - docker-compose -f docker-compose.ci.yml run app /bin/sh

script:
  - echo "Running Specs:"
  - rake spec

我的ci的docker-compose.yml：

postgres:
  image: postgres:9.4.5
  environment:
    POSTGRES_USER: web
    POSTGRES_PASSWORD: yourpassword
  expose:
    - '5432' # added this as an attempt to open the port
  ports:
    - '5432:5432'
  volumes:
    - web-postgres:/var/lib/postgresql/data

redis:
  image: redis:3.0.5
  ports:
    - '6379:6379'
  volumes:
    - web-redis:/var/lib/redis/data

web:
  build: .
  links:
    - postgres
    - redis
  volumes:
    - ./code:/app
  ports:
    - '8000:8000'
  # env_file: # setting these directly in the environment 
  #   - .docker.env # (they work fine locally)

sidekiq:
  build: .
  command: bundle exec sidekiq -C code/config/sidekiq.yml
  links:
    - postgres
    - redis
  volumes:
    - ./code:/app

Docker & Postgres: Failed to bind tcp 0.0.0.0:5432 address already in use

How to get Docker host IP on Travis CI?

Answer 1

在Travis CI中，Postgres服务似乎是默认启用的。

因此，您可以：

1. 尝试在您的Travis配置中禁用Postgres服务。参见How to stop services on Travis CI running by default?。另请参阅https://docs.travis-ci.com/user/database-setup/#PostgreSQL。

或

1. 将postgres容器映射到另一个主机端口(!= 5432)。像-p 5455:5432.

一样

检查服务是否已经在运行也很有用：Check If a Particular Service Is Running on Ubuntu

Answer 2

你用Travis的Postgres吗？

services: - postgresql

如果你提供travis.yml会更容易些