docker registry to build a private warehouse

docker registry to build a private warehouse

Preparation

1. A host (192.168.65.128) based on centos and installed docker environment as a private warehouse server
2. A host (192.168.65.130) based on centos and installed docker environment is used as a test machine to test submission and pull the image of the private warehouse server

officially built

Private warehouse server (192.168.65.128)

• Download mirror registry

  docker pull registry
  

• run registry

  docker run -itd -v /data/registry:/var/lib/registry -p 5000:5000 --restart=always --name registry registry:latest
  

  Parameter Description:

  • -itd: Open a pseudo-terminal in the container for interactive operation and run in the background;
  • -v: Bind the /data/registry directory of the host to the container /var/lib/registry directory (this directory is the directory where mirror files are stored in the registry container) to achieve data persistence;
  • -p: port mapping; access to port 5000 of the host machine will access the service of the registry container;
  • –restart=always: This is the restart strategy, if the container exits abnormally, it will automatically restart the container;
  • –name registry: Create a container named registry, you can name it whatever you want;
  • registry:latest: This is the image that was pulled just now.

• View all images in the private warehouse (there is no mirror image in the warehouse at this time, so the result is empty)

  curl http://127.0.0.1:5000/v2/_catalog
  

  Available data:

  {“repositories”:[]}

Test machine (192.169.65.130)

• Add private storage server address

  vim /etc/docker/daemon.json
  

  {
    "registry-mirrors": [ "https://registry.docker-cn.com"],
    "insecure-registries": [ "192.168.65.128:5000"]
  }
  

  Parameter Description

  insecure_registries: Here is the private warehouse server address

  Restart the docker service

   systemctl  restart docker
  

Upload the image to the private warehouse server (192.168.65.128)

• Pull the hello-world image (this image is docker hub image)

   docker pull hello-world
  

• Label the hello-world image

  docker tag hello-world:latest  192.168.65.128:5000/hello:v1
  

  The format is:

  docker tag SOURCE_IMAGE[:TAG] TARGET_IMAGE[:TAG] 
  

  Parameter Description:

  • SOURCE_IMAGE --> hello-world
  • [:TAG] --> latest
  • TARGET_IMAGE --> 192.168.65.128:5000/hello
  • [:TAG] --> v1

  Notice:

  192.168.65.128:5000/hello is the address of the private warehouse server (192.168.65.128) plus the name of the image you want to upload to the server (this name can be chosen)

• Upload the image hello:v1 to the private warehouse server (192.168.65.128)

  docker push 192.168.65.128:5000/hello:v1
  

• Check whether the private warehouse server (192.168.65.128) already has a hello:v1 image

  curl http://127.0.0.1:5000/v2/_catalog
  

  got the answer:

  {“repositories”:[“hello”]}

Pull the image from the private warehouse server (192.168.65.128)

• Delete the hello:v1 image on the test machine (192.168.65.130)

  docker rmi 192.168.65.128:5000/hello:v1
  

• Pull the image on the private warehouse server (192.168.65.128)

  docker pull 192.168.65.128:5000/hello:v1