Registry¶

push docker image to private registry¶

• omit --password so it will not be stored in command history

• the username can be the registry address such as docker push docker.example.com/uat/redis:0.1.0

  docker login --username <username> [--password]
  docker tag <image-id> <username>/my-repo
  docker push <username>/my-repo
  

create a self-hosted registry¶

• https://microsoft.github.io/PartsUnlimitedMRP/adv/adv-24-Docker-Hub.html

• https://github.com/distribution/distribution

delete docker images in private registry¶

• https://gist.github.com/jaytaylor/86d5efaddda926a25fa68c263830dac1

• https://gist.github.com/abelmferreira/c38036f9642f2adf260ad068ac08f187

• https://stackoverflow.com/questions/25436742/how-to-delete-images-from-a-private-docker-registry

Steps:

• Step 4: Delete the manifest

  curl -sS -X DELETE <domain-or-ip>:5000/v2/<repo>/manifests/<digest>
  

• Garbage collect the image. Run this command in your docker registry container:

  registry garbage-collect -m /etc/docker/registry/config.yml
  

  config.yml

  version: 0.1
  log:
      fields:
      service: registry
  storage:
      cache:
          blobdescriptor: inmemory
      filesystem:
          rootdirectory: /var/lib/registry
      delete:
          enabled: true
  http:
      addr: :5000
      headers:
          X-Content-Type-Options: [nosniff]
  health:
      storagedriver:
          enabled: true
          interval: 10s
          threshold: 3
  

  If set delete: enabled=true there is no need to set the env var REGISTRY_STORAGE_DELETE_ENABLED.

garbage-collect¶

Usage:
  registry garbage-collect <config> [flags]
Flags:
  -m, --delete-untagged=false: delete manifests that are not currently referenced via tag
  -d, --dry-run=false: do everything except remove the blobs
  -h, --help=false: help for garbage-collect