Centos 7 docker私有仓库的搭建

             
 
 
   
  
  
Centos 7 docker registry的搭建
   
  
  
 系统配置：  内核  ，  
   
  
  
运行 docker registry
   
  
  
执行下列命令：
   
  
  
docker run /     -d /     --name private_registry  --restart=always /     -e SETTINGS_FLAVOUR=dev /     -e STORAGE_PATH=/registry-storage /     -v /data/docker/private-registry/storage:/registry-storage /     -u root /     -p 5000:5000 /     registry:2
   
  
  
 如果本地已有registry镜像，它会直接运行，否则它会到docker hub共有仓库下载之后再运行，  该命令将之后私有仓库的镜像存放到本地。 
   
  
  
之后执行：
   
  
  
docker tag docker.io/docker:1.8 192.168.100.9:5000/docker:1.8  docker push 192.168.100.9:5000/docker:1.8
   
  
  
这时会报很多错误：
   
  
  
FATA[0000] Error response from daemon: v1 ping attempt Failed with error: Get https://192.168.100.9:5000/v1/_ping: tls: oversized record received with length 20527/.  If this private registry supports only HTTP or HTTPS with an unkNown CA certificate,please add  `--insecure-registry 192.168.100.9:5000` to the daemon's arguments. In the case of HTTPS,if you have access to the registry's CA certificate,no need for the flag; simply place the CA certificate at /etc/docker/certs.d/192.168.100.9:5000/ca.crt
   
  
  
 最简单的解决方法是修改  文件添加,的配置文件在  在该文件里添加  ，添加过之后重启,重新运行  即可生效。这样做的缺点是你的私有仓库不安全，其次，其他要下载或者上传镜像的机器都要修改相应的配置文件。 
   
  
  
安全的做法是去认证机构购买签名证书，在此我们使用自认证的方式。
   
  
  
自签名认证
   
  
  
首先执行：
   
  
  
# mkdir -p certs && openssl req /   -newkey rsa:4096 -nodes -sha256 -keyout certs/domain.key /   -x509 -days 365 -out certs/domain.crt  Country Name (2 letter code) [AU]:CN State or Province Name (full name) [Some-State]:Beijing Locality Name (eg,city) []:Beijing Organization Name (eg,company) [Internet Widgits Pty Ltd]:SERCXTYF Organizational Unit Name (eg,section) []:IT Common Name (e.g. server FQDN or YOUR name) []:192.168.100.9:5000 Email Address []:xxx.yyy@ymail.com
   
  
  
 生成认证证书和密钥。接下来将刚生成的  复制到  ，之后重启  并运行： 
   
  
  
docker run /     -d /     --name private_registry  --restart=always /     -e SETTINGS_FLAVOUR=dev /     -e STORAGE_PATH=/registry-storage /     -v /data/docker/private-registry/storage:/registry-storage /     -u root /     -p 5000:5000 /     -v /root/certs:/certs /     -e REGISTRY_HTTP_TLS_CERTIFICATE=/certs/domain.crt /     -e REGISTRY_HTTP_TLS_KEY=/certs/domain.key /     registry:2
   
  
  
这样之后应该可以成功了吧，于是执行：
   
  
  
# docker push 192.168.100.9:5000/docker:1.8
   
  
  
结果它还是报错了：
   
  
  
The push refers to a repository 192.168.100.9:5000/docker:1.8 unable to ping registry endpoint https://192.168.100.9:5000/v0/ v2 ping attempt Failed with error: Get https://192.168.100.9:5000/v2/: x509: cannot validate certificate for 192.168.100.9 because it doesn't contain any IP SANs v1 ping attempt Failed with error: Get https://192.168.100.9:5000/v1/_ping: x509: cannot validate certificate for 192.168.100.9 because it doesn't contain any IP SANs
   
  
  
 解决方法：修改  配置，在该文件中找到  ，在它下面添加如下内容： 
   
  
  
[ v3_ca ] # Extensions for a typical CA subjectAltName = IP:123.56.157.144
   
  
  
 之后再次重启docker,并重新  ，启动成功之后，执行： 
   
  
  
# docker push 192.168.100.9:5000/docker:1.8  The push refers to a repository [192.168.100.9:5000/docker] (len: 1) 793ab2f3d322: Pushed  e1232be51d09: Pushed  71ef33d4e0e5: Pushed  e9d235d200dc: Pushed  3fb9a265fbfc: Pushed  9f50b4b1f00b: Pushed  413668359dd0: Pushed  da0daae25b21: Pushed  f4fddc471ec2: Pushed  1.8: digest: sha256:28a02a8a50b750a300904b53e802bdf76516d591b2d233ae21cf771b8c776d44 size: 17621
   
  
  
至此，上传终于成功。换台机器下载刚上传的镜像：
   
  
  
# docker pull  192.168.100.9:5000/docker:1.8  Trying to pull repository 192.168.100.9:5000/docker ... Failed unable to ping registry endpoint https://192.168.100.9:5000/v0/ v2 ping attempt Failed with error: Get https://192.168.100.9:5000/v2/: x509: certificate signed by unkNown authority  v1 ping attempt Failed with error: Get https://192.168.100.9:5000/v1/_ping: x509: certificate signed by unkNown authority
   
  
  
 仔细分析错误信息，发现是没有证书，将在  上生成的证书拷贝到相应的目录下  ，拷贝之后重启  ，再次执行: 
   
  
  
# docker pull  192.168.100.9:5000/docker:1.8  1.8: Pulling from docker 9d58b928bc15: Pull complete  dbe7e8a7807c: Pull complete  ce14982b73d4: Pull complete  b9f70905d763: Pull complete  b9c93a2fb3cf: Pull complete  1321a4d5d3ea: Pull complete  5941048a7e27: Pull complete  f57edf7c2e71: Pull complete  5de2ade00f1b: Pull complete  Digest: sha256:28a02a8a50b750a300904b53e802bdf76516d591b2d233ae21cf771b8c776d44 Status: Downloaded newer image for 192.168.100.9:5000/docker:1.8
   
  
  
 至此，  私有仓库安装成功。如果要部署到生产环境还需要进一步的配置，具体可以参考 Registry Configuration Reference。 
 
 
 
          

查看原文：http://www.zoues.com/2016/10/25/centos-7-docker%e7%a7%81%e6%9c%89%e4%bb%93%e5%ba%93%e7%9a%84%e6%90%ad%e5%bb%ba-2/Centos 73.10.0-229.20.1.el7.x86_64Docker version 1.8.2-v /data/docker/private-registry/storage:/registry-storage/etc/sysconfig/dockerINSECURE_REGISTRY='--insecure-registry 192.168.100.9:5000'Ubuntu 14.04/etc/default/dockerDOCKER_OPTS="--insecure-registry 192.168.100.9:5000"dockerdocker registrycerts/domain.crt/etc/docker/certs.d/192.168.100.9:5000/ca.crtdocker/etc/pki/tls/openssl.cnf[ v3_ca ]run registry192.168.100.9/etc/docker/certs.d/192.168.100.9:5000/ca.crtdockerdocker registry