基于IP的docker private registry 私有仓库的搭建

鉴于国内的网络环境,如果公司内部大量使用docker,镜像上传下载将是个非常耗时的工作,搭建一个私有仓库可以很好的解决自有镜像的存储,如果你在私有网络,不能使用域名的话,那么本文可以作为一个很好的例子。

本文参考了大量文档,整理而成,由于时间已久,出处也忘记了,如果有读者知道可以留言,我备注出处。

本教程操作系统:Ubuntu 16.04

1, 安装配置 Docker Registry

$ mkdir ~/docker-registry && cd $_
$ makir data

编写 docker-compose 文件

$ cd ~/docker-registry
$ vi docker-compose.ym

添加以下内容

registry:
image: registry:2
restart: always
ports:
- 127.0.0.1:5000:5000
environment:
REGISTRY_STORAGE_FILESYSTEM_ROOTDIRECTORY: /data
volumes:
- ./data:/data

2, 安装配置 nginx

$ mkdir ~/docker-registry/nginx
$ cd ~/docker-registry

修改 docker-compose.ym

nginx:
image: "nginx:1.9"
restart: always
ports:
- 443:443
links:
- registry:registry
volumes:
- ./nginx/:/etc/nginx/conf.d
registry:
image: registry:2
ports:
- 127.0.0.1:5000:5000
environment:
REGISTRY_STORAGE_FILESYSTEM_ROOTDIRECTORY: /data
volumes:
- ./data:/data

创建 registry.conf

$ vi ~/docker-registry/nginx/registry.conf

添加一下内容

upstream docker-registry {
server registry:5000;
} server {
listen 443;
server_name 192.168.200.150; # SSL
# ssl on;
# ssl_certificate /etc/nginx/conf.d/domain.crt;
# ssl_certificate_key /etc/nginx/conf.d/domain.key; # disable any limits to avoid HTTP 413 for large image uploads
client_max_body_size 0; # required to avoid HTTP 411: see Issue #1486 (https://github.com/docker/docker/issues/1486)
chunked_transfer_encoding on; location /v2/ {
# Do not allow connections from docker 1.5 and earlier
# docker pre-1.6.0 did not properly set the user agent on ping, catch "Go *" user agents
if ($http_user_agent ~ "^(docker\/1\.(3|4|5(?!\.[0-9]-dev))|Go ).*$" ) {
return 404;
} # To add basic authentication to v2 use auth_basic setting plus add_header
# auth_basic "registry.localhost";
# auth_basic_user_file /etc/nginx/conf.d/registry.password;
# add_header 'Docker-Distribution-Api-Version' 'registry/2.0' always; proxy_pass http://docker-registry;
proxy_set_header Host $http_host; # required for docker client's sake
proxy_set_header X-Real-IP $remote_addr; # pass on real client's IP
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Proto $scheme;
proxy_read_timeout 900;
}
}

修改 server_name 未内网ip,本例中是 192.168.200.150

3, 配置 nginx SSL

修改 registry.conf, 去掉 SSL注释

  # SSL
ssl on;
ssl_certificate /etc/nginx/conf.d/domain.crt;
ssl_certificate_key /etc/nginx/conf.d/domain.key;

创建CA

$ cd ~/docker-registry/nginx

生成CA私钥

$ openssl genrsa -out devdockerCA.key 2048

生成CA公钥

$ openssl req -x509 -new -nodes -key devdockerCA.key -days 10000 -out devdockerCA.crt

创建服务器密钥

创建服务器私钥,在nginx配置ssl_certificate_key时使用

$ openssl genrsa -out domain.key 2048

拷贝 /etc/ssl/openssl.cnf~/docker-registry/nginx 目录,修改

openssl 以下部分,

去掉下面这行注释:
req_extensions = v3_req 找到以下部分:
[ v3_req ]
# Extensions to add to a certificate request
basicConstraints = CA:FALSE
keyUsage = nonRepudiation, digitalSignature, keyEncipherment
# 添加下面这行, IP修改为你服务器的ip
subjectAltName = IP: 192.168.200.150

创建服务器公钥,在nginx配置ssl_certificate时使用

 $ openssl req -new -key domain.key -out dev-docker-registry.com.csr -config openssl.cnf

创建过程中,Common Name 输入服务器地址,本例为 192.168.200.150

生成签名证书

$ openssl x509 -req -in dev-docker-registry.com.csr -CA devdockerCA.crt -CAkey devdockerCA.key -CAcreateserial -out domain.crt -days 10000  -extensions v3_req -extfile openssl.cnf

重启 docker 服务

$ sudo systemctl restart docker

4, 测试 SSL

$ cd ~/docker-registry
$ docker-compose up

命令行测试 curl https://192.168.200.150/v2/, 输出为{}

5, 客户端访问 registry

客户端添加CA, 拷贝 ~/docker-registry/nginx/devdockerCA.crt 内容,

在客户机新建

$ sudo vi /usr/local/share/ca-certificates/docker-dev-cert/devdockerCA.crt

添加拷贝内容。

更新证书

$ sudo update-ca-certificates

mac用户

sudo security add-trusted-cert -d -r trustRoot -k /Library/Keychains/System.keychain devdockerCA.crt

重启 docker 服务

$ sudo systemctl restart docker

测试

$ docker pull hello-world
$ docker tag hello-world 192.168.200.150/test/hello-world
$ docker push 192.168.200.150/test/hello-world
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