docker-guide

{
  "insecure-registries": [
    "182.92.214.141:8082",
  ],
  "registry-mirrors":[
    "https://docker.m.daocloud.io"
  ],
  "data-root": "/path/to/your/new/docker/root"
  "max-concurrent-downloads": 20,
  "max-concurrent-uploads": 20
}

The following command could serve the image registry from Harbor data:

docker run -p 5000:5000 -v /var/data/kubelet/pods/2950ab28-cf9e-4771-9973-6aa0083393a3/volumes/kubernetes.io~local-volume/pvc-85a6e412-f3bf-468d-8296-68292393d3f9:/var/lib/registry --name registry registry:2

See also https://github.com/LinuxSuRen/container-assistant

ARG

Please attention the scope of ARG.

ARG REGISTRY=172.11.0.6:30002/
FROM ${REGISTRY}docker.io/linuxsuren/antfu-ni:master as builder

ARG PLATFORM=changeke
WORKDIR /workspace
COPY . .
RUN ni
RUN nr server_build ${PLATFORM}

As Proxy

We could start an registry server as any kind of container registry, such as: ghcr.io

First, get the default config of registry:

docker run registry cat /etc/docker/registry/config.yml > config.yml

then, put the following part into it:

proxy:
  remoteurl: https://ghcr.io

then, start the server as the following command:

docker run -v /root/.config/docker:/etc/docker/registry \
  -v /var/lib/registry:/var/lib/registry --restart always -d \
  --network host registry

finally, you use use this mirror after updating the Docker daemon:

# find file from /etc/docker/daemon.json
{
  "registry-mirrors":["http://10.121.218.184:5000"],
  "insecure-registries": ["http://10.121.218.184:5000"]
}

See also the following references:

• https://docs.docker.com/registry/recipes/mirror/
• https://github.com/distribution/distribution