搭建内网Docker镜像仓库

需求

在局域网内，在一台机器上搭建镜像仓库，其他节点能够通过内网镜像仓库pull、push等

实操步骤

• 仓库节点IP：192.168.83.141
• 仓库节点上创建镜像存放目录：mkdir -p /data/registry
• 设置仓库节点上Docker镜像加速：Aliyun
• pull registry：sudo docker pull registry

[liu@localhost docker]$ sudo docker pull registry
[sudo] liu 的密码：
Using default tag: latest
latest: Pulling from library/registry
79e9f2f55bf5: Pull complete
0d96da54f60b: Pull complete
5b27040df4a2: Pull complete
e2ead8259a04: Pull complete
3790aef225b9: Pull complete
Digest: sha256:169211e20e2f2d5d115674681eb79d21a217b296b43374b8e39f97fcf866b375
Status: Downloaded newer image for registry:latest
docker.io/library/registry:latest

• 运行registry镜像：sudo docker run -d -v /data/registry:/var/lib/registry -p 5000:5000 --restart=always b8604a3fe854（registry镜像ID），查看容器：

[liu@localhost registry]$ sudo docker ps
CONTAINER ID   IMAGE          COMMAND                  CREATED         STATUS         PORTS                                       NAMES
609cbf29e5c9   b8604a3fe854   "/entrypoint.sh /etc…"   6 seconds ago   Up 5 seconds   0.0.0.0:5000->5000/tcp, :::5000->5000/tcp   jovial_pare

• 修改HTTP设置：vi /etc/docker/daemon.json

{
  "registry-mirrors": ["https://XXXXXXX.mirror.aliyuncs.com"],
  "insecure-registries":["http://192.168.83.141:5000"]
}

• 重启Docker：sudo systemctl daemon-reload、sudo systemctl restart docker

• 客户机上也修改HTTP设置（我这里是Windows Docker Desktop）
  

使用

• 客户机上先给镜像打标签：docker tag gisliuliang/test-demo:v0.1 192.168.83.141:5000/test-demo:v0.1
• 客户机上push：docker push 192.168.83.141:5000/test-demo:v0.1

# docker push 192.168.83.141:5000/test-demo:v0.1
The push refers to repository [192.168.83.141:5000/test-demo]
c7e172568a34: Pushed
419df8b60032: Pushed
0e835d02c1b5: Pushed
5ee3266a70bd: Pushed
3f87f0a06073: Pushed
1c9c1e42aafa: Pushed
8d3ac3489996: Pushed
v0.1: digest: sha256:330f361a99a1bfd589483d35f84cb12f2ab3e60f1441aa32eddececdda989c16 size: 1775

• 查看API：http://192.168.83.141:5000/v2/_catalog