Deploy Jenkins using containers

1. Write a docker-compose.yml, as follows ：

version: "3.9"
services:
  jenkins:
    container_name: jenkins
    image: jenkins/jenkins:lts
    user: root
    ports:
      - 8888:8080
      - 50001:50000
    restart: "always"
    volumes:
      - ./jenkins_home:/var/jenkins_home
      - /var/run/docker.sock:/var/run/docker.sock
      - /usr/bin/docker:/usr/bin/docker

analysis ：

• container_name: jenkins The name of the container is ：jenkins
• image: jenkins/jenkins:lts Use Mirror as jenkins/jenkins:lts Stable version
• ports Port mapping , Such as 8888:8080 Will host the 8888 The port maps to the container 8080 port , Access the host's 8888 port , It can be mapped into the container 8080
• volumes: Hang on volume
  • /jenkins_home:/var/jenkins_home Put... In the container /var/jenkins_home The directory is mapped to the host docker-compose.yml Under the document jenkins_home Catalog
  • /var/run/docker.sock:/var/run/docker.sock The container can share the host docker
  • /usr/bin/docker:/usr/bin/docker The container can share the host docker

2. Use docker-compose.yml start-up jenkins Containers

docker-compose up -d start-up jenkins Containers ,-d Indicates background start

3. visit jenkins Address ：127.0.0.1:8888

4. Get the first login password

• /jenkins_home:/var/jenkins_home Put... In the container /var/jenkins_home The directory is mapped to the host docker-compose.yml Under the document jenkins_home Catalog
• So we can start from the local jenkins_home Get the initial password from the directory
  
• Obtain the password as follows ：
  

5. Don't use the recommended plug-ins to install , Because it takes a long time to install the recommended plug-ins , Here we choose plug-ins to install

6. Select none , Don't install plug-ins

7. Create an administrator

8. Installation successful , Get into jenkins home page