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docker—私有仓库搭建

HTTP

部署

docker run -d \-p 5000:5000 \--restart=always \--name registry \-v /opt/data/registry:/var/lib/registry \registry:2

• 使用官方的 registry​ 镜像来启动私有仓库。默认情况下，仓库会被创建在容器的 /var/lib/registry​ 目录下。你可以通过 -v​ 参数来将镜像文件存放在本地的指定路径，当然你也可以选择其它本地路径，上面的只是一个示例。

使用

1. 配置非HTTPS方式推送镜像

   cat <<EOF | tee /etc/docker/daemon.json
   {"registry-mirrors": ["https://hub-mirror.c.163.com","https://mirror.baidubce.com"],"insecure-registries": ["your_ip_addr:5000"]
   }
   EOFsystemctl daemon-reload
   systemctl restart docker
   

2. push and pull

   docker tag $image $registry_host_address:5000/$image
   docker push $registry_host_address:5000/$image
   docker pull $registry_host_address:5000/$image
   

3. check images

   curl your_ip_address:5000/v2/_catalog
   

HTTPS

部署

1. registry_name

   export registry_name=registry.domain.local
   

2. 生成证书

   sudo -E mkdir -p /opt/registry/certs/
   sudo -E openssl req \-newkey rsa:4096 -nodes -sha256 -keyout /opt/registry/certs/domain.key \-subj "/CN=${registry_name}" \-addext "subjectAltName = DNS:${registry_name}" \-x509 -days 365 -out /opt/registry/certs/domain.crt
   

3. deploy registry

   docker run -d \--restart=always \--name registry \-v /opt/registry/certs:/certs \-e REGISTRY_HTTP_ADDR=0.0.0.0:443 \-e REGISTRY_HTTP_TLS_CERTIFICATE=/certs/domain.crt \-e REGISTRY_HTTP_TLS_KEY=/certs/domain.key \-p 443:443 \registry:2
   

4. add certificate to host trust chain

   1. 任何需要访问registry的主机都需要配置

   2. ​cat /etc/os-release​

   3. case "ubuntu"|"debian"

      sudo cp /opt/registry/certs/domain.crt /usr/local/share/ca-certificates/$registry_name.crt
      sudo update-ca-certificates
      

   4. case "centos"|"fedora"|"alinux"

      sudo cat /opt/registry/certs/domain.crt >> /etc/pki/ca-trust/extracted/openssl/ca-bundle.trust.crt
      cp /opt/registry/certs/domain.crt /etc/pki/ca-trust/source/anchors/
      sudo update-ca-trust
      

   5. case "rhel"

      # https://access.redhat.com/solutions/3220561
      sudo cp /opt/registry/certs/domain.crt /etc/pki/ca-trust/source/anchors/
      sudo update-ca-trust extract
      cd /etc/pki/tls/certs/ && sudo openssl x509 -in ca-bundle.crt -text -noout
      

   6. case others, Please manual add registry certificates to host trust chain.

5. Append the entry to allow ip-address resolved to the registry name

   任何需要访问registry的主机都需要配置

   registry_ip=`hostname -I | awk '{print $1}'`
   echo "$registry_ip   $registry_name" | sudo tee -a /etc/hosts
   

6. Verifiy registry service works

   export no_proxy=$no_proxy,$registry_name
   if ! curl https://$registry_name/v2/_catalog ; thenif ! nc -zv $registry_name 443 ; thenecho "ERROR: failed to connect to 443 port "fiecho "ERROR: registry service is not ready"exit 1
   fi
   

使用

push and pull

docker tag $image $registry_address/$image
docker push $registry_address/$image
docker pull $registry_address/$image

注意：

• ​push​的时候，需要把docker仓库设置成insecure-registries​
• ​pull​时不需要设置

注意

镜像拉取

docker pull swr.cn-north-4.myhuaweicloud.com/ddn-k8s/docker.io/registry:2
docker tag  swr.cn-north-4.myhuaweicloud.com/ddn-k8s/docker.io/registry:2  docker.io/registry:2