Docker 学习笔记（十）-- 镜像发布

1、DockerHub

地址：Docker Hub 需要注册。

在我们的服务器上提交自己的镜像。

测试

# 查看登录命令
[root@localhost home]$ docker login --help

Usage:  docker login [OPTIONS] [SERVER]

Log in to a Docker registry.
If no server is specified, the default is defined by the daemon.

Options:
  -p, --password string   Password
      --password-stdin    Take the password from stdin
  -u, --username string   Username
  
# 登录
[root@localhost home]$ docker login -u mianbaozzz
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

# 查看镜像
[root@localhost home]$ docker images
REPOSITORY        TAG       IMAGE ID       CREATED        SIZE
my_tomcat         1.0       18c352ccb430   23 hours ago   821MB

# 提交报错，首先使用 docker tag 命令给本地镜像起标签
[root@localhost home]$  docker push mianbao/my_tomcat:1.0
The push refers to repository [docker.io/mianbao/my_tomcat]
An image does not exist locally with the tag: mianbao/my_tomcat

# 创建一个引用 SOURCE_IMAGE 的标记 TARGET_IMAGE
[root@localhost home]$ docker tag --help
Usage:  docker tag SOURCE_IMAGE[:TAG] TARGET_IMAGE[:TAG]

# docker tag [镜像名|镜像ID] hub-user/repo-name [:tag]
# 给本地镜像起 tag
[root@localhost home]$ docker tag 18c352ccb430 mianbao/my_tomcat:1.0
[root@localhost home]$ docker images
REPOSITORY          TAG       IMAGE ID       CREATED        SIZE
my_tomcat           1.0       18c352ccb430   23 hours ago   821MB
mianbao/my_tomcat   1.0       18c352ccb430   23 hours ago   821MB

# 再次提交
[root@localhost home]$ docker push mianbao/my_tomcat:1.0
The push refers to repository [docker.io/mianbao/my_tomcat]
eda11d1334ce: Preparing 
4ecf1c216317: Preparing 
43c96235a830: Preparing 
d8525728b109: Preparing 
174f56854903: Preparing 
# denied：请求的资源访问被拒绝
denied: requested access to the resource is denied

# 镜像名称要改为 ==> 注册用户名/镜像名 <== 形式，否则被拒绝。
[root@localhost home]$ docker tag 18c352ccb430 mianbaozzz/my_tomcat:1.0
[root@localhost home]$ docker images
REPOSITORY             TAG       IMAGE ID       CREATED        SIZE
my_tomcat              1.0       18c352ccb430   23 hours ago   821MB
mianbao/my_tomcat      1.0       18c352ccb430   23 hours ago   821MB
mianbaozzz/my_tomcat   1.0       18c352ccb430   23 hours ago   821MB
[root@localhost home]$ docker push mianbaozzz/my_tomcat:1.0
The push refers to repository [docker.io/mianbaozzz/my_tomcat]
eda11d1334ce: Pushing [===========>                                       ]  52.54MB/231.7MB
4ecf1c216317: Pushed
43c96235a830: Pushing [>                                                  ]  4.979MB/369.1MB
d8525728b109: Pushing   2.56kB
174f56854903: Preparing 
# ----------成功后---------------
1.0: digest: sha256:3aae408e58cb83c63d1e9869d9e0e332faa865b0b28c39f9b30a594b3a1ca9ac size: 1373

2、阿里云镜像服务

2.1、登录阿里云

2.2、搜索容器镜像服务，点击进入控制台

地址：容器镜像服务 ACR

2.3、创建个人实例

2.4、新手指引

2.5、创建命名空间

2.6、创建镜像仓库

2.7、操作指南

1. 登录阿里云Docker Registry

$ docker login --username=aliyun5682911351 registry.cn-hangzhou.aliyuncs.com

用于登录的用户名为阿里云账号全名，密码为开通服务时设置的密码。您可以在访问凭证页面修改凭证密码。

2. 从Registry中拉取镜像

$ docker pull registry.cn-hangzhou.aliyuncs.com/mianbao/mianbao-test:[镜像版本号]

3. 将镜像推送到Registry

$ docker login --username=aliyun5682911351 registry.cn-hangzhou.aliyuncs.com
$ docker tag [ImageId] registry.cn-hangzhou.aliyuncs.com/mianbao/mianbao-test:[镜像版本号]
$ docker push registry.cn-hangzhou.aliyuncs.com/mianbao/mianbao-test:[镜像版本号]

4. 选择合适的镜像仓库地址

从 ECS 推送镜像时，可以选择使用镜像仓库内网地址。推送速度将得到提升并且将不会损耗您的公网流量。

如果您使用的机器位于 VPC 网络，请使用 registry-vpc.cn-hangzhou.aliyuncs.com 作为 Registry 的域名登录。

2.8、测试

测试

# 登录
[root@localhost home]$ docker login --username=aliyun5682911351 registry.cn-hangzhou.aliyuncs.com
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
# 标签
[root@localhost home]$ docker images
REPOSITORY             TAG       IMAGE ID       CREATED        SIZE
my_tomcat              1.0       18c352ccb430   24 hours ago   821MB
[root@localhost home]$ docker tag 18c352ccb430 registry.cn-hangzhou.aliyuncs.com/mianbao/mianbao-test:1.0
[root@localhost home]$ docker images
REPOSITORY                                               TAG       IMAGE ID       CREATED        SIZE
my_tomcat                                                1.0       18c352ccb430   24 hours ago   821MB
registry.cn-hangzhou.aliyuncs.com/mianbao/mianbao-test   1.0       18c352ccb430   24 hours ago   821MB
# 推送
[root@localhost home]$ docker push registry.cn-hangzhou.aliyuncs.com/mianbao/mianbao-test:1.0
The push refers to repository [registry.cn-hangzhou.aliyuncs.com/mianbao/mianbao-test]
eda11d1334ce: Pushed 
4ecf1c216317: Pushed 
43c96235a830: Pushed 
d8525728b109: Pushed 
174f56854903: Pushed 
1.0: digest: sha256:3aae408e58cb83c63d1e9869d9e0e332faa865b0b28c39f9b30a594b3a1ca9ac size: 1373

3、小结