CentOS7搭建Docker私有仓库

原文地址：http://467754239.blog.51cto.com/4878013/1638770

一、准备

地址规划：

Docker私有仓库地址：192.168.0.109

Docker客户端地址：192.168.0.110

1、激活网卡

# vi /etc/sysconfig/network-scripts/ifcfg-eno16777728

修改此行

ONBOOT=yes

# /etc/init.d/network restart

2、关闭本地防火墙并设置开机不自启动

# systemctl stop firewalld.service

# systemctl disable firewalld.service

3、关闭本地selinux防火墙

# vi /etc/sysconfig/selinux 

SELINUX=disabled

# setenforce 0   

4、安装ifconfig工具

# yum install net-tools

二、安装

1、安装docker

# yum install docker

# yum upgrade device-mapper-libs

# service docker start

# chkconfig docker on

2、本地私有仓库registry

[root@localhost ~]# docker pull registry

Trying to pull repository docker.io/registry ...

24dd746e9b9f: Download complete 

706766fe1019: Download complete 

a62a42e77c9c: Download complete 

2c014f14d3d9: Download complete 

b7cf8f0d9e82: Download complete 

d0b170ebeeab: Download complete 

171efc310edf: Download complete 

522ed614b07a: Download complete 

605ed9113b86: Download complete 

22b93b23ebb9: Download complete 

2ac557a88fda: Download complete 

1f3b4c532640: Download complete 

27ebaac643a7: Download complete 

ce630195cb45: Download complete 

Status: Downloaded newer image for docker.io/registry:latest

[root@localhost ~]# docker images

REPOSITORY           TAG                 IMAGE ID            CREATED             VIRTUAL SIZE

docker.io/registry   latest              24dd746e9b9f        3 days ago          413.8 MB

3、基于私有仓库镜像运行容器

[root@localhost ~]# docker run -d -p 5000:5000 -v /opt/data/registry:/tmp/registry docker.io/registry

bb2c0d442df94e281479332c2608ef144f378e71743c5410e36b80c465771a95

[root@localhost ~]# docker ps -a

CONTAINER ID        IMAGE                       COMMAND             CREATED             STATUS              PORTS                    NAMES

bb2c0d442df9        docker.io/registry:latest   "docker-registry"   10 seconds ago      Up 7 seconds        0.0.0.0:5000->5000/tcp   serene_hopper

4、访问私有仓库

[root@localhost ~]# curl 127.0.0.1:5000/v1/search

{"num_results": 0, "query": "", "results": []} //私有仓库为空，没有提交新镜像到仓库中

5、从Docker Hub上下载一个ssh镜像

[root@localhost ~]# docker search -s 10 ssh

NAME                              DESCRIPTION   STARS     OFFICIAL   AUTOMATED

docker.io: docker.io/fedora/ssh                 18                   [OK]

[root@localhost ~]# docker pull fedora/ssh

Trying to pull repository docker.io/fedora/ssh ...

2aeb2b6d9705: Download complete 

511136ea3c5a: Download complete 

00a0c78eeb6d: Download complete 

834629358fe2: Download complete 

571e8a51403c: Download complete 

87d5d42e693c: Download complete 

92b5ef05fe68: Download complete 

92d3910dc33c: Download complete 

cf2e9fa11368: Download complete 

Status: Downloaded newer image for docker.io/fedora/ssh:latest

[root@localhost ~]# docker images

REPOSITORY             TAG                 IMAGE ID            CREATED             VIRTUAL SIZE

docker.io/registry     latest              24dd746e9b9f        3 days ago          413.8 MB

docker.io/fedora/ssh   latest              2aeb2b6d9705        9 days ago          254.4 MB

6、创建镜像链接或为基础镜像打个标签

[root@localhost ~]# docker tag docker.io/fedora/ssh 127.0.0.1:5000/ssh

[root@localhost ~]# docker images

REPOSITORY             TAG                 IMAGE ID            CREATED             VIRTUAL SIZE

docker.io/registry     latest              24dd746e9b9f        3 days ago          413.8 MB

docker.io/fedora/ssh   latest              2aeb2b6d9705        9 days ago          254.4 MB

127.0.0.1:5000/ssh     latest              2aeb2b6d9705        9 days ago          254.4 MB

7、修改Docker配置文件制定私有仓库url

[root@localhost ~]# vi /etc/sysconfig/docker

修改此行

OPTIONS='--selinux-enabled --insecure-registry 192.168.0.109:5000'

[root@localhost ~]# service docker restart

Redirecting to /bin/systemctl restart  docker.service

8、提交镜像到本地私有仓库中

[root@localhost ~]# docker push 127.0.0.1:5000/ssh

The push refers to a repository [127.0.0.1:5000/ssh] (len: 1)

Sending image list

Pushing repository 127.0.0.1:5000/ssh (1 tags)

511136ea3c5a: Image successfully pushed 

00a0c78eeb6d: Image successfully pushed 

834629358fe2: Image successfully pushed 

571e8a51403c: Image successfully pushed 

87d5d42e693c: Image successfully pushed 

92b5ef05fe68: Image successfully pushed 

92d3910dc33c: Image successfully pushed 

cf2e9fa11368: Image successfully pushed 

2aeb2b6d9705: Image successfully pushed 

Pushing tag for rev [2aeb2b6d9705] on {http://127.0.0.1:5000/v1/repositories/ssh/tags/latest}

9、查看私有仓库是否存在对应的镜像

[root@localhost ~]# curl 127.0.0.1:5000/v1/search

{"num_results": 1, "query": "", "results": [{"description": "", "name": "library/ssh"}]}

10、查看镜像的存储目录和文件

[root@localhost ~]# tree /opt/data/registry/repositories/

/opt/data/registry/repositories/

└── library

    └── ssh

        ├── _index_images

        ├── json

        ├── tag_latest

        └── taglatest_json

 

2 directories, 4 files

三、从私有仓库中下载已有的镜像

1、登陆另外一台Docker客户端

[root@localhost ~]# ssh [email protected]

The authenticity of host '192.168.0.110 (192.168.0.110)' can't be established.

ECDSA key fingerprint is 5b:81:4b:66:d6:dd:48:16:9f:85:58:72:21:bd:ba:39.

Are you sure you want to continue connecting (yes/no)? yes

Warning: Permanently added '192.168.0.110' (ECDSA) to the list of known hosts.

[email protected]'s password: 

Last login: Sun Apr 26 14:39:51 2015 from 192.168.0.103

2、修改Docker配置文件

[root@localhost ~]# vi /etc/sysconfig/docker

修改此行

OPTIONS='--selinux-enabled --insecure-registry 192.168.0.109:5000'        //添加私有仓库地址

[root@localhost ~]# service docker restart

Redirecting to /bin/systemctl restart  docker.service

3、从私有仓库中下载已有的镜像

[root@localhost ~]# docker pull 192.168.0.109:5000/ssh

Trying to pull repository 192.168.0.109:5000/ssh ...

2aeb2b6d9705: Download complete 

511136ea3c5a: Download complete 

00a0c78eeb6d: Download complete 

834629358fe2: Download complete 

571e8a51403c: Download complete 

87d5d42e693c: Download complete 

92b5ef05fe68: Download complete 

92d3910dc33c: Download complete 

cf2e9fa11368: Download complete 

Status: Downloaded newer image for 192.168.0.109:5000/ssh:latest

[root@localhost ~]# docker images

REPOSITORY               TAG                 IMAGE ID            CREATED             VIRTUAL SIZE

192.168.0.109:5000/ssh   latest              2aeb2b6d9705        9 days ago          254.4 MB

四、浏览器访问仓库