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Use dfget daemon as registry mirror for cri-containerd

Quick Start

Step 1: Configure dfget daemon

To use dfget daemon as registry mirror, first you need to ensure configuration in /etc/dragonfly/dfget.yaml:

proxy:
  security:
    insecure: true
  tcp_listen:
    listen: 0.0.0.0
    port: 65001
  registry_mirror:
    url: https://index.docker.io
  proxies:
    - regx: blobs/sha256.*

Step 2: Configure Containerd

Then, enable mirrors in containerd registries configuration in /etc/containers/registries.conf:

[plugins.cri.registry.mirrors."docker.io"]
  endpoint = ["http://127.0.0.1:65001"]

Step 3: Restart Containerd Daemon

systemctl restart containerd

Step 4: Pull Image

You can pull image like this:

crictl pull docker.io/library/busybox

Step 5: Validate Dragonfly

You can execute the following command to check if the busybox image is distributed via Dragonfly.

grep 'register peer task result' /var/log/dragonfly/daemon/*.log

If the output of command above has content like

{"level":"info","ts":"2021-02-23 20:03:20.306","caller":"client/client.go:83","msg":"register peer task result:true[200] for taskId:adf62a86f001e17037eedeaaba3393f3519b80ce,peerIp:10.15.233.91,securityDomain:,idc:,scheduler:127.0.0.1:8002","peerId":"10.15.233.91-65000-43096-1614081800301788000","errMsg":null}

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