CentOS 7搭建Docker私有仓库

4t2eq

学习Docker的过程中Docker的私有仓库一直没能成功，就是因为CentOS 6.x和CentOS 7默认引入了支持https认证，每次在push和pull的时候都会报错，今天是周末，利用一天的时间反复测试和网上案列的整合，总算是成功了，也借此机会对学习Docker的朋友有所帮助。
个人的愚见：博友在练习的时候建议用CentOS 7.x系统，不建议用CentOS 6.x系统

一、准备
地址规划：

1 2	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

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# vim /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

1 2	# systemctl stop firewalld.service # systemctl disable firewalld.service

3、关闭本地selinux防火墙

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# vi /etc/sysconfig/selinux SELINUX=disabled # setenforce 0

4、安装ifconfig工具

1	# yum install net-tools

二、安装

1、安装docker

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# yum install docker # yum upgrade device-mapper-libs # service docker start # chkconfig docker on

2、本地私有仓库registry

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[iyunv@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 [iyunv@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

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[iyunv@localhost ~]# docker run -d -p 5000:5000 -v /opt/data/registry:/tmp/registry docker.io/registry bb2c0d442df94e281479332c2608ef144f378e71743c5410e36b80c465771a95 [iyunv@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

1 2	[iyunv@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

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[iyunv@localhost ~]# docker search -s 10 ssh NAME                              DESCRIPTION   STARS     OFFICIAL   AUTOMATED docker.io: docker.io/fedora/ssh                 18                   [OK] [iyunv@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 [iyunv@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

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

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[iyunv@localhost ~]# vim /etc/sysconfig/docker 修改此行 OPTIONS='--selinux-enabled --insecure-registry 192.168.0.109:5000' [iyunv@localhost ~]# service docker restart Redirecting to /bin/systemctl restart  docker.service

8、提交镜像到本地私有仓库中

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[iyunv@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

1 2	[iyunv@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

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[iyunv@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

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[iyunv@localhost ~]# ssh root@192.168.0.110 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. root@192.168.0.110's password: Last login: Sun Apr 26 14:39:51 2015 from 192.168.0.103

2、修改Docker配置文件

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[iyunv@localhost ~]# vim /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 [iyunv@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

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[iyunv@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 [iyunv@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