无法从jenkins docker容器内部连接到redis docker容器

Question

version: '3.4'
services:
  redis:
    image: redis:alpine
    ports:
      - 6379:6379
  jenkins:
    image: jenkinsci/blueocean
    user: root
    ports:
      - "8080:8080"
   volumes:
      - ./jenkins_data:/var/jenkins_home
      - /var/run/docker.sock:/var/run/docker.sock

pipeline {
  agent { docker { image 'python:3.7.0' } }
  environment { 
        ENV = 'test'
    }
  stages {
    stage('install dependencies') {
      steps {
        sh 'pip install -r requirements.txt'
      }
    }

    stage('test') {
      steps {
        sh 'python app/tests/test_user.py'
      }   
    }
 }

• 要运行测试文件，Flask应用程序需要连接到Redis。我尝试将这些URL用于redis主机，如localhost:6379，redis:6379，0.0.0.0:6379，但都没有用。他们都告诉我连接错误或连接拒绝。
• 知道如何从jenkins docker容器中连接到redis吗？

Answer 1

version: '3'

不起作用。

但是

version: '2'

作品

 32       image: daocloud.io/mysql:5.7.21
 33       ports:
 34        - "3306:3306"
 35       volumes:
 36        - ./my.cnf:/etc/mysql/my.cnf
 37       environment:
 38        - MYSQL_ROOT_PASSWORD=dangerous
 39     mysql3307:
 40       image: daocloud.io/mysql:5.6
 41       ports:
 42        - "3307:3306"
 43       environment:
 44        - MYSQL_ROOT_PASSWORD=dangerous
CONTAINER ID        IMAGE                      COMMAND                  CREATED             STATUS              PORTS                    NAMES
a5317caa2a56        daocloud.io/mysql:5.7.21   "docker-entrypoint.s…"   3 minutes ago       Up 3 minutes        0.0.0.0:3306->3306/tcp   service_mysql_1
9c5e3f2750f9        daocloud.io/mysql:5.6      "docker-entrypoint.s…"   3 minutes ago       Up 3 minutes        0.0.0.0:3307->3306/tcp   service_mysql3307_1

mysql -u root -pdangerous -h mysql 

它起作用了，但当我把版本改成'3'时。

Warning: Using a password on the command line interface can be insecure.
ERROR 2005 (HY000): Unknown MySQL server host 'msyql' (0)