019、使用公共Registry （2019-01-10 周四）
在DockerHub上注册一个账号，这样就可以将自己构建的镜像上传到DockerHub上供别人使用了，公共Registry是免费的，也可以使用付费的私有Registry。
root@docker-lab:~/019# docker build -t test019 . # 构建一个测试镜像
Sending build context to Docker daemon 2.048kB
Step 1/2 : FROM busybox
latest: Pulling from library/busybox
57c14dd66db0: Pull complete
Digest: sha256:7964ad52e396a6e045c39b5a44438424ac52e12e4d5a25d94895f2058cb863a0
Status: Downloaded newer image for busybox:latest
---> 3a093384ac30
Step 2/2 : CMD echo "Hello www1707"
---> Running in 7d7793d50385
Removing intermediate container 7d7793d50385
---> fe57f4f69c44
Successfully built fe57f4f69c44
Successfully tagged test019:latest
root@docker-lab:~/019# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
test019 latest fe57f4f69c44 21 minutes ago 1.2MB
busybox latest 3a093384ac30 9 days ago 1.2MB
root@docker-lab:~/019# docker tag test019:latest www1707/test:v1.9.1 # 使用docker tag 命令让刚构建的镜像与Docker Hub账号匹配
root@docker-lab:~/019# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
test019 latest fe57f4f69c44 30 minutes ago 1.2MB
www1707/test v1.9.1 fe57f4f69c44 30 minutes ago 1.2MB
busybox latest 3a093384ac30 9 days ago 1.2MB
root@docker-lab:~/019# docker login -u www1707 # 登录DockerHub
Password:
Login Succeeded
root@docker-lab:~/019# docker push www1707/test:v1.9.1 # 上传镜像
The push refers to repository [docker.io/www1707/test]
683f499823be: Mounted from library/busybox
v1.9.1: digest: sha256:54ae599930613f4ac8d84f024bcad300727d39fccb43d80086169ce30ba66680 size: 527
root@docker-lab:~/019# docker images -a
REPOSITORY TAG IMAGE ID CREATED SIZ
root@docker-lab:~/019# docker pull www1707/test:v1.9.1
v1.9.1: Pulling from www1707/test
57c14dd66db0: Pull complete
Digest: sha256:5af948aea202288c12f93cbb3de383510649704f2f954b7cb5cf59102874a321
Status: Downloaded newer image for www1707/test:v1.9.1
root@docker-lab:~/019# docker images -a
REPOSITORY TAG IMAGE ID CREATED SIZE
www1707/test v1.9.1 97935339c795 3 minutes ago 1.2MB
ps 删除Repository的方法如下
