Docker private repository under Linux

Environment preparation

• Use two machines, one to do Docker private warehouse, one to do Docker image submission
• Make sure Docker is installed on both machines and start the Docker service
• The name of the Docker private warehouse is: Docker-registry, IP: 192.168.1.101
• The Docker image is submitted with the name: Docker-app, IP 192.168.1.102

Installation of private warehouses and push of mirrors

• Execute the following command on the Docker-registry machine:
  docker run --name docker-registry -d -p 5000:5000 registry

• Change the contents of the/etc/default/docker file on the Docker-app machine:
  DOCKER_OPTS="--insecure-registry 192.168.1.101:5000 --dns 114.114.114.114"

• Modify the/lib/systemd/system/docker.service file to support the modified Docker configuration file to use the HTTP protocol

  EnvironmentFile=-/etc/default/dockerExecStart=/usr/bin/dockerd -H fd:// $DOCKER_OPTS

• Reload Docker service and restart Docker service
• Pull an image on the Docker-app machine, such as Nginx or Tomcat
• Then look at the ID of the image
• Use this image as a marker for push
  docker tag IMAGE_ID 192.168.1.101:5000/nginx

• Then push to the warehouse:
  docker push 192.168.1.101:5000/nginx

• To see if it was successful:curl -X GET http://192.168.1.101:5000/v2/_catalog
• Delete Local Image:docker rmi tomcat 192.168.1.101:5000/tomcat
• To run the image of a private warehouse on Docker-app:docker run --name nginx01 -p 80:80 -idt 192.168.1.101:5000/nginx

Docker private repository under Linux