Question

我试图在2个Docker容器之间建立连接。第一个是postgres数据库，第二个是jboss。

我使用ansible，这是我的Playbook：

---
- hosts: localhost

  tasks:
  - name: start postgresql
    docker:
      name: mypostgres
      image: MYIMAGE_POSTGRES
  ports:
    - 5432:5432
  expose:
    - 5432:5432
  state: started
  env:
    DB_USER: "user"
    DB_PASS: "pass"
    DB_NAME: "name"

  - name: start jboss
    docker:
      name: jboss
  image: MYIMAGE_JBOSS
  ports:
    - 1099:1099
  expose:
    - 1099:1099
  state: running
  env:
      POSTGRES_PORT_5432_TCP_ADDR: "172.17.0.2"
      POSTGRES_PORT_5432_TCP_PORT: 5432
      HIBERNATE_CREATE_DDL: ""
      DB_NAME: "name"
      DB_USER: "user"
      DB_PASS: "pass"

如果我启动两个docker镜像，则数据库和jboss之间没有连接。在我的配置中，有什么我错过的吗？

非常感谢，帕斯卡

Answer 1

您需要将postgres容器链接到jboss容器。为此，请使用link选项

...

docker:
  name: jboss
  image: MYIMAGE_JBOSS
  ports:
    - 1099:1099
  expose:
   - 1099:1099
  links:
   -mypostgres
  state: running
    env:
      POSTGRES_PORT_5432_TCP_ADDR: "mypostgres"
      POSTGRES_PORT_5432_TCP_PORT: 5432
      HIBERNATE_CREATE_DDL: ""
      DB_NAME: "name"
      DB_USER: "user"
      DB_PASS: "pass"
...

2个Docker容器（JBOSS / DATABASE）之间的网络连接

1 个答案: