Run docker private registry with read/write access control

.docker-private-registry-with-read-write-control.md

Run docker private registry with read/write access control

Credits go to https://docs.docker.com/registry/recipes/nginx/ and http://mindtrove.info/control-read-write-access-docker-private-registry/

Follow the steps on https://docs.docker.com/registry/recipes/nginx/ with docker-compose.yml and nginx.conf below.

Run the following for admin UI:

docker run \
  -d --restart=unless-stopped --name registry-ui \
  -e ENV_DOCKER_REGISTRY_HOST=yourdomain.com \
  -e ENV_DOCKER_REGISTRY_PORT=5000 \
  -e ENV_DOCKER_REGISTRY_USE_SSL=1 \
  -e ENV_USE_SSL=yes \
  -e ENV_MODE_BROWSE_ONLY=false \
  -v ~/auth/domain.crt:/etc/apache2/server.crt:ro \
  -v ~/auth/domain.key:/etc/apache2/server.key:ro \
  -p 443:443 \
  coolersport/docker-registry-frontend

docker-compose.yml

version: '2'
services:
  nginx:
    image: "nginx:alpine"
    ports:
    - 5000:443
    links:
    - registry:registry
    volumes:
    - ./auth:/etc/nginx/conf.d
    - ./auth/nginx.conf:/etc/nginx/nginx.conf:ro
  registry:
    image: registry:2
    environment:
      REGISTRY_HTTP_ADDR: 0.0.0.0:5001
      REGISTRY_STORAGE_DELETE_ENABLED: 'true'
    ports:
    - 127.0.0.1:5001:5001
    volumes:
    - ./registry:/var/lib/registry

nginx.conf

events {
    worker_connections  1024;
}

http {

  upstream docker-registry {
    server registry:5001;
  }

  ## Set a variable to help us decide if we need to add the
  ## 'Docker-Distribution-Api-Version' header.
  ## The registry always sets this header.
  ## In the case of nginx performing auth, the header will be unset
  ## since nginx is auth-ing before proxying.
  map $upstream_http_docker_distribution_api_version $docker_distribution_api_version {
    '' 'registry/2.0';
  }

  server {
    listen 443 ssl;
    server_name yourdomain.com;

    # SSL
    ssl_certificate /etc/nginx/conf.d/domain.crt;
    ssl_certificate_key /etc/nginx/conf.d/domain.key;

    # Recommendations from https://raymii.org/s/tutorials/Strong_SSL_Security_On_nginx.html
    ssl_protocols TLSv1.1 TLSv1.2;
    ssl_ciphers 'EECDH+AESGCM:EDH+AESGCM:AES256+EECDH:AES256+EDH';
    ssl_prefer_server_ciphers on;
    ssl_session_cache shared:SSL:10m;

    # disable any limits to avoid HTTP 413 for large image uploads
    client_max_body_size 0;

    # required to avoid HTTP 411: see Issue #1486 (https://github.com/moby/moby/issues/1486)
    chunked_transfer_encoding on;

    location /v2/ {
      # Do not allow connections from docker 1.5 and earlier
      # docker pre-1.6.0 did not properly set the user agent on ping, catch "Go *" user agents
      if ($http_user_agent ~ "^(docker\/1\.(3|4|5(?!\.[0-9]-dev))|Go ).*$" ) {
        return 404;
      }

      # To add basic authentication to v2 use auth_basic setting.
      auth_basic "Registry realm";
      auth_basic_user_file /etc/nginx/conf.d/htpasswd;
      auth_request /_auth;

      ## If $docker_distribution_api_version is empty, the header will not be added.
      ## See the map directive above where this variable is defined.
      add_header 'Docker-Distribution-Api-Version' $docker_distribution_api_version always;

      proxy_pass                          http://docker-registry;
      proxy_set_header  Host              $http_host;   # required for docker client's sake
      proxy_set_header  X-Real-IP         $remote_addr; # pass on real client's IP
      proxy_set_header  X-Forwarded-For   $proxy_add_x_forwarded_for;
      proxy_set_header  X-Forwarded-Proto $scheme;
      proxy_read_timeout                  900;
    }

    location /_auth {
      if ($remote_user ~* "^admin-?.*$") {
        # admin* is allowed to do anything
        return 200;
      }
      if ($request_method ~* "^(GET|HEAD)$") {
        # all other authed users can only GET/HEAD
        return 200;
      }
      # anonymous users can do nothing
      return 403;
    }
  }
}