Docker : Use Docker-Registry2018/06/12 |
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Install Docker-Registry to build Private Registry for Docker images.
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| [1] |
On The Host which Docker-Registry Container runs, Get SSL Certificates, refer to here.
This example is based on the case that SSL certificates are gotten under the [/etc/letsencrypt/live/dlp.srv.world] and set the [Common Name] as [dlp.srv.world]. |
| [2] | Copy to locate Certificates and pull Registry Image (v2). Container Images are located under [/var/lib/regstry] on Registry v2 Container, so map to mount [/var/lib/docker/registry] on parent Host for Registry Container to use as Persistent Storage. |
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root@dlp:~#
root@dlp:~# mkdir -p /etc/docker/certs.d/dlp.srv.world:5000 root@dlp:~# cp -p /etc/letsencrypt/live/dlp.srv.world/cert.pem /etc/docker/certs.d/dlp.srv.world:5000/ca.crt
docker pull registry:2 root@dlp:~# mkdir /var/lib/docker/registry root@dlp:~# docker run -d -p 5000:5000 \
-e REGISTRY_HTTP_TLS_CERTIFICATE=/certs/fullchain.pem \ -e REGISTRY_HTTP_TLS_KEY=/certs/privkey.pem \ -v /etc/letsencrypt/live/dlp.srv.world:/certs \ -v /var/lib/docker/registry:/var/lib/registry \ registry:2 33eeb464bf7786d26e8692f28085e638b2a348233f67dc8cc2901853a039683droot@dlp:~# docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 33eeb464bf77 registry:2 "/entrypoint.sh /etc…" 18 seconds ago Up 18 seconds 0.0.0.0:5000->5000/tcp competent_bhabha |
| [3] | For pushing local Image to Registry Container server, set like follows. |
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# list images on Registry container root@dlp:~# curl https://dlp.srv.world:5000/v2/_catalog {"repositories":[]} docker images REPOSITORY TAG IMAGE ID CREATED SIZE storage latest f250059f0ff5 16 minutes ago 1.15MB web_server latest 46fdaf40a0fe 23 minutes ago 313MB srv.world/ubuntu_apache2 latest b2d00f9d9fb4 About an hour ago 218MB ubuntu latest 113a43faa138 6 days ago 81.2MB busybox latest 8c811b4aec35 2 weeks ago 1.15MB registry 2 d1fd7d86a825 5 months ago 33.3MB # set a tag and push root@dlp:~# docker tag ubuntu dlp.srv.world:5000/ubuntu_reg root@dlp:~# docker push dlp.srv.world:5000/ubuntu_reg The push refers to repository [dlp.srv.world:5000/ubuntu_reg] ..... ..... db9476e6d963: Pushed latest: digest: sha256:e7def0d56013d50204d73bb588d99e0baa7d69ea1bc1157549b898eb67287612 size: 1357root@dlp:~# docker images REPOSITORY TAG IMAGE ID CREATED SIZE storage latest f250059f0ff5 17 minutes ago 1.15MB web_server latest 46fdaf40a0fe 24 minutes ago 313MB srv.world/ubuntu_apache2 latest b2d00f9d9fb4 About an hour ago 218MB ubuntu latest 113a43faa138 6 days ago 81.2MB dlp.srv.world:5000/ubuntu_reg latest 113a43faa138 6 days ago 81.2MB busybox latest 8c811b4aec35 2 weeks ago 1.15MB registry 2 d1fd7d86a825 5 months ago 33.3MBroot@dlp:~# curl https://dlp.srv.world:5000/v2/_catalog {"repositories":["ubuntu_reg"]} |
| [4] | For getting images from Registry Container server on a Docker node, set like follows. |
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# get certificates from Registry Container root@node01:~# mkdir -p /etc/docker/certs.d/dlp.srv.world:5000 root@node01:~# cd /etc/docker/certs.d/dlp.srv.world:5000 root@node01:/etc/docker/certs.d/dlp.srv.world:5000# scp ubuntu@dlp.srv.world:"/etc/docker/certs.d/dlp.srv.world:5000/ca.crt" ./
docker pull dlp.srv.world:5000/ubuntu_reg Using default tag: latest latest: Pulling from ubuntu_reg 6b98dfc16071: Pull complete 4001a1209541: Pull complete 6319fc68c576: Pull complete b24603670dc3: Pull complete 97f170c87c6f: Pull complete Digest: sha256:e7def0d56013d50204d73bb588d99e0baa7d69ea1bc1157549b898eb67287612 Status: Downloaded newer image for dlp.srv.world:5000/ubuntu_reg:latestroot@node01:~# docker images REPOSITORY TAG IMAGE ID CREATED SIZE dlp.srv.world:5000/ubuntu_reg latest 113a43faa138 6 days ago 81.2MB |
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