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Table of Contents
docker-mirror.front.sepia.ceph.com
Summary
This is a VM in RHEV that is a caching mirror for docker.io. We were being rate-limited by docker.io (https://tracker.ceph.com/issues/45343).
I was originally going to create an Ansible playbook to set this up but it was easy enough it wasn't worth the time.
Setup Commands
<pre> ## On reesi001 ceph auth add client.containers mds 'allow rw path=/containers' mon 'allow r' osd 'allow rw pool=data' ceph auth get client.containers # Copy the key output
## On docker-mirror.front.sepia.ceph.com wget -q -O- 'https://download.ceph.com/keys/release.asc' | sudo apt-key add - apt update apt install ceph-common mkdir /lrc echo “172.21.2.201,172.21.2.202,172.21.2.203:/containers/mirror /lrc/ ceph name=containers,secretfile=/etc/ceph/secret,_netdev 0 2” » /etc/fstab echo “KEY_FROM_REESI001” > /etc/ceph/secret mount -a apt install docker.io docker run -it –rm –entrypoint cat registry:2 /etc/docker/registry/config.yml > /lrc/config.yml # Used example from https://www.cloudkb.net/configure-docker-local-registry-proxy-cache/ docker run -d –restart=always -p 5000:5000 –name registry-mirror -v /lrc:/var/lib/registry registry:2 /var/lib/registry/config.yml </pre>
Super simple.
Using the mirror
<pre> # Example using grafana podman pull –tls-verify=false docker-mirror.front.sepia.ceph.com:5000/grafana/grafana </pre>