docker pull registry
docker run -d --name=my_registry -p 5000:5000 -v /opt/data/registry:/tmp/registry registry:latest
docker run -d -v /opt/registry:/var/lib/registry -p 5000:5000 --restart=always --name registry registry:latest

curl -XGET http://192.168.1.23:5000/v2/_catalog    //即该私有仓库里有tomcat7镜像 
curl -XGET http://192.168.1.23:5000/v2/tomcat7/tags/list



vi /usr/lib/systemd/system/docker.service
ExecStart=/usr/bin/dockerd --registry-mirror=https://cu4cokke.mirror.aliyuncs.com --insecure-registry=reg.harbor.k8s:80

/etc/docker/daemon.json
{
"registry-mirrors": [ "https://pee6w651.mirror.aliyuncs.com"],"insecure-registries": ["192.168.179.128:5000"]
}
sudo systemctl daemon-reload
sudo systemctl restart docker