将docker本地镜像推送到hub.docker.com.md

将docker本地镜像推送到hub.docker.com

参考文档

• Docker ID accounts
• Docker Hub Quickstart
• Repositories

1.注册docker hub帐号登录，创建repository仓库

2.准备推送的镜像

选择其中的一种方式生成镜像

• 构建镜像

  docker build -f DockerfilePATH -t <hub-user>/<repo-name>[:<tag>] PATH

• 对已经存在的镜像再加标签（取别名）

  docker tag <existing-image> <hub-user>/<repo-name>[:<tag>]

• 提交已经存在的容器

  docker commit <existing-container> <hub-user>/<repo-name>[:<tag>]

3.在docker宿主机登录dockerhub

$ docker login
Login with your Docker ID to push and pull images from Docker Hub. If you don't have a Docker ID, head over to https://hub.docker.com to create one.
Username: cucker  ## 输入dockerhub ID
Password:         ## 输入密码
WARNING! Your password will be stored unencrypted in /root/.docker/config.json.
Configure a credential helper to remove this warning. See
https://docs.docker.com/engine/reference/commandline/login/#credentials-store

Login Succeeded

docker login 省略登录地址，默认是 hub.docker.com

4.推送镜像

docker push <hub-user>/<repo-name>:<tag>

默认向hub.docker.com推送。所以镜像名中也没有以仓库域名开头来命名。

示例

• 操作日志

  [root@bind-dns web]# docker login
  Login with your Docker ID to push and pull images from Docker Hub. If you don't have a Docker ID, head over to https://hub.docker.com to create one.
  Username: cucker
  Password: 
  WARNING! Your password will be stored unencrypted in /root/.docker/config.json.
  Configure a credential helper to remove this warning. See
  https://docs.docker.com/engine/reference/commandline/login/#credentials-store
  
  Login Succeeded
  [root@bind-dns web]# docker images
  REPOSITORY               TAG       IMAGE ID       CREATED         SIZE
  hanxiao2100/tomcat       10        17a9f513eca2   2 hours ago     537MB
  [root@bind-dns web]#
  [root@bind-dns web]# docker tag 17a9f513eca2 cucker/tomcat:10.0
  [root@bind-dns web]# docker push cucker/tomcat:10.0
  The push refers to repository [docker.io/cucker/tomcat]
  354f0bceb5d5: Pushed 
  86cea5f5542c: Pushed 
  8dc6e2462031: Pushed 
  2653d992f4ef: Mounted from library/centos 
  10.0: digest: sha256:ce6d7c5af935402e017b8d1e5be7ba4dcd8325b5e93d5724e9b7bd0d5bc5dbd9 size: 1161

• 查看dockerhub控制台

• 拉取镜像

  docker pull cucker/tomcat:10.0