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基于BOS怎样搭建私有Docker Registry,很多新手对此不是很清楚,为了帮助大家解决这个难题,下面小编将为大家详细讲解,有这方面需求的人可以来学习下,希望你能有所收获。
Docker Registry 作为 Docker 的核心组件之一负责了镜像的存储以及分发。用户只需要使用 Docker 的客户端就可以直接和 Registry 进行交互,下载和上传镜像。
百度对象存储 BOS (Baidu Object Storage) 提供稳定、安全、高效以及高扩展存储服务。
Baidu BOS storage driver 基于官方 Docker Registry 源码,结合百度云 Go 语言SDK:https://github.com/guoyao/baidubce-sdk-go.git,通过实现 storagedriver.StorageDriver 接口,提供了一个针对百度云 BOS 的 Storage Driver。
安装 Docker Engine,如何安装请参考 Docker官方文档
下载 Registry 镜像(或者通过源码仓库https://github.com/guoyao/distribution.git 自己 build 一个镜像)
docker pull guoyao/registry:0.6.0
因为是从Docker官方Registry下载镜像,速度会比较慢,可以配置国内的镜像加速
注册百度云账号,开通 BOS 服务,在百度云 BOS 控制台新建一个 Bucket,假设 Bucket 名称为 registry-test
获取百度云 AK / SK
为 Registry 相关的配置新建一个单独的目录
mkdir registry && cd registry
在当前目录下新建我们的账户密码(最简单的账户验证方式)
mkdir auth htpasswd -Bbn admin 123456 > auth/htpasswd
启动 Registry
docker run -d \ -v `pwd`/auth:/auth:ro \ -e REGISTRY_AUTH=htpasswd \ -e REGISTRY_AUTH_HTPASSWD_REALM=basic-realm \ -e REGISTRY_AUTH_HTPASSWD_PATH=/auth/htpasswd \ -e REGISTRY_STORAGE=bos \ -e REGISTRY_STORAGE_BOS_ACCESSKEYID=Your_AK \ -e REGISTRY_STORAGE_BOS_ACCESSKEYSECRET=Your_SK \ -e REGISTRY_STORAGE_BOS_REGION=bj \ -e REGISTRY_STORAGE_BOS_BUCKET=registry-test \ -p 5000:5000 \ --restart=always \ guoyao/registry:0.6.0
详细的 BOS STORAGE 的配置文档在这里: https://github.com/guoyao/distribution/blob/release/0.6/docs/storage-drivers/bos.md
操作镜像
Login
docker login localhost:5000
根据命令行提示输入之前设置的用户名:admin,密码:123456;登录成功会提示:Login Succeeded
Push
首先通过 Dockerfile 生成一个镜像,或者修改一个已有镜像的 tag,比如:localhost:5000/busybox
docker push localhost:5000/busybox
推送成功后就可以在百度云 BOS 控制台查看到这个镜像了
Pull
docker pull localhost:5000/busybox
上述方式只能通过 localhost 来 push 和 pull 镜像,如果想通过公网 域名 或 IP,需要配置 --insecure-registry xxx.xxx.xxx.xxx 到 Docker Deamon 的启动参数中,并重启 Docker Deamon,否则会报错:
Error response from daemon: Get https://xxx.xxx.xxx.xxx:5000/v1/users/: http: server gave HTTP response to HTTPS client
如果不希望配置 --insecure-registry 参数,你需要购买一个独立的域名(假设为 myregistrydomain.com),并且申请该域名的 https 证书,将证书 xxx.crt 和 xxx.key 文件放在当前 certs 子目录下,然后在启动 Registry 时,配置证书:
docker run -d \ -v `pwd`/auth:/auth:ro \ -e REGISTRY_AUTH=htpasswd \ -e REGISTRY_AUTH_HTPASSWD_REALM=basic-realm \ -e REGISTRY_AUTH_HTPASSWD_PATH=/auth/htpasswd \ -v `pwd`/certs:/certs:ro \ -e REGISTRY_HTTP_TLS_CERTIFICATE=/certs/xxx.crt \ -e REGISTRY_HTTP_TLS_KEY=/certs/xxx.key \ -e REGISTRY_STORAGE=bos \ -e REGISTRY_STORAGE_BOS_ACCESSKEYID=Your_AK \ -e REGISTRY_STORAGE_BOS_ACCESSKEYSECRET=Your_SK \ -e REGISTRY_STORAGE_BOS_REGION=bj \ -e REGISTRY_STORAGE_BOS_BUCKET=registry-test \ -p 443:5000 \ --restart=always \ guoyao/registry:0.6.0
既然已经使用 https 证书了,我们把对外暴露的端口换成 443 端口,然后就可以直接通过域名来操作镜像了:
docker login myregistrydomain.com docker push myregistrydomain.com/busybox docker pull myregistrydomain.com/busybox
更多关于部署 Registry 的内容,可以参考官方文档:https://docs.docker.com/registry/deploying/
因为要启动多个容器,这里我们使用 docker-compose 来做容器编排,首先安装 docker-compose(需要使用 root 用户来安装),安装方式如下:
curl -L https://github.com/docker/compose/releases/download/1.10.1/docker-compose-`uname -s`-`uname -m` > /usr/local/bin/docker-compose chmod +x /usr/local/bin/docker-compose
创建 nginx 主配置文件
cat > auth/nginx.conf << 'EOF' events { worker_connections 1024; } http { upstream docker-registry { server registry:5000; } ## Set a variable to help us decide if we need to add the ## 'Docker-Distribution-Api-Version' header. ## The registry always sets this header. ## In the case of nginx performing auth, the header will be unset ## since nginx is auth-ing before proxying. map $upstream_http_docker_distribution_api_version $docker_distribution_api_version { '' 'registry/2.0'; } server { listen 443 ssl; server_name myregistrydomain.com; # SSL ssl_certificate /certs/xxx.crt; ssl_certificate_key /certs/xxx.key; # Recommendations from https://raymii.org/s/tutorials/Strong_SSL_Security_On_nginx.html ssl_protocols TLSv1.1 TLSv1.2; ssl_ciphers 'EECDH+AESGCM:EDH+AESGCM:AES256+EECDH:AES256+EDH'; ssl_prefer_server_ciphers on; ssl_session_cache shared:SSL:10m; # disable any limits to avoid HTTP 413 for large image uploads client_max_body_size 0; # required to avoid HTTP 411: see Issue #1486 (https://github.com/docker/docker/issues/1486) chunked_transfer_encoding on; location /v2/ { # Do not allow connections from docker 1.5 and earlier # docker pre-1.6.0 did not properly set the user agent on ping, catch "Go *" user agents if ($http_user_agent ~ "^(docker\/1\.(3|4|5(?!\.[0-9]-dev))|Go ).*$" ) { return 404; } # To add basic authentication to v2 use auth_basic setting. auth_basic "Registry realm"; auth_basic_user_file /etc/nginx/conf.d/htpasswd; ## If $docker_distribution_api_version is empty, the header will not be added. ## See the map directive above where this variable is defined. add_header 'Docker-Distribution-Api-Version' $docker_distribution_api_version 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; } } } EOF
创建 docker-compose.yml 文件
nginx: image: nginx:1.9 ports: - 443:443 links: - registry:registry volumes: - ./auth:/etc/nginx/conf.d:ro - ./auth/nginx.conf:/etc/nginx/nginx.conf:ro - ./certs:/certs:ro registry: image: guoyao/registry:0.6.0 environment: - REGISTRY_STORAGE=bos - REGISTRY_STORAGE_BOS_ACCESSKEYID=Your_AK - REGISTRY_STORAGE_BOS_ACCESSKEYSECRET=Your_SK - REGISTRY_STORAGE_BOS_REGION=bj - REGISTRY_STORAGE_BOS_BUCKET=registry-test
启动容器
docker-compose up -d
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