Docker仓库管理
Docker仓库，类似于yum仓库，是用来保存镜像的仓库。为了方便的管理和使用docker镜像,可以将镜像集中保存至Docker仓库中，将制作好的镜像push到仓库集中保存，在需要镜像时，从仓库中pull镜像即可。
Docker 仓库分为公有云仓库和私有云仓库
公有云仓库：由互联网公司对外公开的仓库
- 官方
- 阿里云等第三方仓库
私有云仓库：组织内部搭建的仓库，一般只为组织内部使用，常使用下面软件搭建仓库
- docker registory
- docker harbor
官方docker 仓库
将自制的镜像上传至docker仓库；https://hub.docker.com/
注册账户
访问hub.docker.com注册账户，并登录
使用用户仓库管理镜像
每个注册用户都可以上传和管理自已的镜像
用户登录
上传镜像前需要执行docker login命令登录，登录后生成~/.docker/config.json文件保存验证信息
格式
docker login [OPTIONS] [SERVER]
选项：
-p, --password string Password
--password-stdin Take the password from stdin
-u, --username string Username范例：
[root@ubuntu1804 ~]#docker login -u wangxiaochun -pP@ssw0rd! docker.io
WARNING! Using --password via the CLI is insecure. Use --password-stdin.
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@ubuntu1804 ~]#cat .docker/config.json
{
"auths": {
"https://index.docker.io/v1/": {
"auth": "d2FuZ3hpYW9jaHVuOmxidG9vdGgwNjE4"
}
},
"HttpHeaders": {
"User-Agent": "Docker-Client/19.03.5 (linux)"
}
}[root@ubuntu1804 ~]#给本地镜像打标签
上传本地镜像前必须先给上传的镜像用docker tag 命令打标签
标签格式： docker.io/用户帐号/镜像名:TAG
范例：
[root@ubuntu1804 ~]#docker tag alpine:3.11 docker.io/wangxiaochun/alpine:3.11-v1
[root@ubuntu1804 ~]#docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
haproxy-centos7 2.1.2 5eccdb29a058 4 hours ago 428MB
nginx-ubuntu1804 1.16.1 19efdd23ac87 18 hours ago 378MB
nginx-alpine 1.16.1 978a43bbb61d 19 hours ago 211MB
alpine-base 3.11 b162eecf4da9 20 hours ago 182MB
tomcat-web app2 0e1760fe79a6 40 hours ago 838MB
tomcat-web app1 76016219a0ca 40 hours ago 838MB
tomcat-base v8.5.50 8d5395cb72c4 41 hours ago 824MB
centos7-jdk 8u212 e0fe770a7ccd 42 hours ago 809MB
centos7-base v1 34ab3afcd3b3 43 hours ago 403MB
alpine 3.11 e7d92cdc71fe 12 days ago 5.59MB
alpine latest e7d92cdc71fe 12 days ago 5.59MB
wangxiaochun/alpine 3.11-v1 e7d92cdc71fe 12 days ago 5.59MB
ubuntu 18.04 ccc6e87d482b 2 weeks ago 64.2MB
ubuntu bionic ccc6e87d482b 2 weeks ago 64.2MB
centos centos7.7.1908 08d05d1d5859 2 months ago 204MB
上传本地镜像至官网
[root@ubuntu1804 ~]#docker push docker.io/wangxiaochun/alpine:3.11-v1
The push refers to repository [docker.io/wangxiaochun/alpine]
5216338b40a7: Mounted from wanglinux/alpine-base
3.11-v1: digest: sha256:ddba4d27a7ffc3f86dd6c2f92041af252a1f23a8e742c90e6e1297bfa1bc0c45 size: 528在官网验证上传的镜像
下载上传的镜像并创建容器
在另一台主机上下载镜像
[root@centos7 ~]#docker pull wangxiaochun/alpine:3.11-v1
3.11-v1: Pulling from wangxiaochun/alpine
c9b1b535fdd9: Already exists
Digest: sha256:ddba4d27a7ffc3f86dd6c2f92041af252a1f23a8e742c90e6e1297bfa1bc0c45
Status: Downloaded newer image for wangxiaochun/alpine:3.11-v1
docker.io/wangxiaochun/alpine:3.11-v1
[root@centos7 ~]#docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
wangxiaochun/alpine 3.11-v1 e7d92cdc71fe 12 days ago 5.59MB
[root@centos7 ~]#docker run -it --rm wangxiaochun/alpine:3.11-v1 sh
/ # cat /etc/issue
Welcome to Alpine Linux 3.11
Kernel \r on an \m (\l)
/ # du -sh /
5.6M /
/ # exit
[root@centos7 ~]#使用组织管理镜像
组织类似于名称空间，每个组织的名称全网站唯一，一个组织可以有多个用户帐户使用，并且可以指定不同用户对组织内的仓库不同的权限
三种不同权限
- Read-only：Pull and view repository details and builds
- Read &Write：Pull, push, and view a repository; view, cancel, retry or trigger builds
- Admin：Pull, push, view, edit, and delete a repository; edit build settings; update the repository description
创建组织
创建组织内的团队，并分配权限
上传镜像前登录帐号
[root@ubuntu1804 ~]#docker login docker.io
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: wangxiaochun
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@ubuntu1804 ~]#cat .docker/config.json
{
"auths": {
"https://index.docker.io/v1/": {
"auth": "d2FuZ3hpYW9jaHVuOmxidG9vdGgwNjE4"
}
},
"HttpHeaders": {
"User-Agent": "Docker-Client/19.03.5 (linux)"
}
}[root@ubuntu1804 ~]#给本地镜像打标签
[root@ubuntu1804 ~]#docker tag alpine-base:3.11 docker.io/wanglinux/alpine-base:3.11
[root@ubuntu1804 ~]#docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
haproxy-centos7 2.1.2 5eccdb29a058 4 hours ago 428MB
nginx-ubuntu1804 1.16.1 19efdd23ac87 18 hours ago 378MB
nginx-alpine 1.16.1 978a43bbb61d 19 hours ago 211MB
alpine-base 3.11 b162eecf4da9 20 hours ago 182MB
wanglinux/alpine-base 3.11 b162eecf4da9 20 hours ago 182MB
tomcat-web app2 0e1760fe79a6 40 hours ago 838MB
tomcat-web app1 76016219a0ca 40 hours ago 838MB
tomcat-base v8.5.50 8d5395cb72c4 41 hours ago 824MB
centos7-jdk 8u212 e0fe770a7ccd 42 hours ago 809MB
centos7-base v1 34ab3afcd3b3 43 hours ago 403MB
alpine 3.11 e7d92cdc71fe 12 days ago 5.59MB
alpine latest e7d92cdc71fe 12 days ago 5.59MB
wangxiaochun/alpine 3.11-v1 e7d92cdc71fe 12 days ago 5.59MB
ubuntu 18.04 ccc6e87d482b 2 weeks ago 64.2MB
ubuntu bionic ccc6e87d482b 2 weeks ago 64.2MB
centos centos7.7.1908 08d05d1d5859 2 months ago 204MB
上传镜像到指定的组织
[root@ubuntu1804 ~]#docker push docker.io/wanglinux/alpine-base:3.11
The push refers to repository [docker.io/wanglinux/alpine-base]
1783f0912dfb: Pushed
1e5e8d5ab333: Pushed
5216338b40a7: Mounted from library/alpine
3.11: digest: sha256:7931fed46d377698dacb194d46017c53bc24f2e9ee41e893e6900c07d1153536 size: 947在网站看查看上传的镜像
下载上传的镜像并运行容器
在另一台主机上下载镜像
[root@centos7 ~]#docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
[root@centos7 ~]#docker pull wanglinux/alpine-base:3.11
3.11: Pulling from wanglinux/alpine-base
c9b1b535fdd9: Pull complete
327af1e87fd8: Pull complete
d88818b49372: Pull complete
Digest: sha256:7931fed46d377698dacb194d46017c53bc24f2e9ee41e893e6900c07d1153536
Status: Downloaded newer image for wanglinux/alpine-base:3.11
docker.io/wanglinux/alpine-base:3.11
[root@centos7 ~]#docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
wanglinux/alpine-base 3.11 b162eecf4da9 20 hours ago 182MB
[root@centos7 ~]#docker run -it --rm wanglinux/alpine-base:3.11 sh
/ # cat /etc/issue
Welcome to Alpine Linux 3.11
Kernel \r on an \m (\l)
/ # du -sh /
190.1M /
/ # exit
[root@centos7 ~]#本文链接：https://www.yunweipai.com/34896.html
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