目前Docker官方维护了一个公共仓库https://hub.docker.com, 其中已经包括100000+个的镜像。大部分需求都可以通过在 Docker hub中直接下载镜像来实现,
注册登录
可以在https://hub.docker.com 免费注册一个Docker账号。在命令行执行docker login输入用户名及密码来完成在命令行界面登记Docker Hub。你可以通过docker logout退出登录。
docker login
拉取镜像
可以通过docker search命令来查找官方仓库中的镜像，并利用docker pull命令来将它下载到本地。
推送镜像
用户也可以在登录后通过docker push命令来将自己的镜像推送到Docker Hub。
docker pull tomcat
docker images
修改本地镜像的名字为账号名/镜像名
上传镜像到公共仓库
docker push woxpp/tomcat-test:latest
登录界面查看
docker pull woxpp/tomcat-test
私有仓库
有时候使用Docker Hub这样的公共仓库可能不方便，用户可以创建一个本地仓库供私人使用。比如，基于公司内部项目构建的镜像。
docker-registry是官方提供的工具，可以用于构建私有的镜像仓库。
安装运行docker-registry
可以通过获取官方registry镜像来运行。默认情况下，仓库会被创建在容器的/var/lib/registry目录下。可以通过-v参数来将镜像文件存放在本地的指定路径。
docker run --name registry -d -p 5000:5000 --restart=always -v /opt/registry:/var/lib/registry registry
docker ps -a
测试是否成功
http://192.168.50.24:5000/v2/_catalog
使用docker tag将session-web:latest这个镜像标记为192.168.50.24:5000/session-web:latest格式为docker tag IMAGE:TAG/]REPOSITORY[:TAG]
|
1
|
docker tag docker.io/tomcat 192.168.50.24:5000/tomcat-2:latest |
使用docker push上传标记的镜像
docker push 192.168.50.24:5000/tomcat-2:latest
验证上传的镜像
http://192.168.50.24:5000/v2/_catalog
先删除已有镜像，再尝试从私有仓库中下载这个镜像。
docker images
docker rmi 192.168.50.24:5000/tomcat-2
docker pull 192.168.50.24:5000/tomcat-2
注意事项
The push refers to a repository [192.168.50.24:5000/consul]
Get https://192.168.50.24:5000/v1/_ping: http: server gave HTTP response to HTTPS client
可以用下面方式解决
修改客户端/etc/docker/daemon.json中写入如下内容
{
"registry-mirror":[
"http://hub-mirror.c.163.com"
],
"insecure-registries":[
"192.168.50.24:5000"
]
}重新启动docker后再试试
service docker restart
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