docker的私有仓库的搭建

author： headsen chen

date：2018-06-30  23:14:16

服务端（私有仓库：centos7_64位），使用端：centos6_64位

1、仓库的搭建：

安装docker：

yum -y install epel-release
yum -y install docker-io
systemctl start docker

将本地的仓库换成阿里云的镜像仓库：

vim /etc/docker/daemon.json  # 内容如下：
{
  "registry-mirrors": ["https://cvv5tle1.mirror.aliyuncs.com"]  # 这里的镜像源是我专属的, 其他人用可能起不到加速效果
}
 systemctl daemon-reload
 systemctl restart docker

在本地注册阿里云的镜像:
docker login --username=woccb registry.cn-hangzhou.aliyuncs.com/woccb2/chen
输入设置的密码 

运行一个生成本地仓库的脚本：

sh registry-install.sh

[root@localhost ~]# cat registry-install.sh
#!/bin/bash
# Description: create a private registry v2.
# Version: 0.2
# Author: headsen chen

set -o xtrace
if [[ $UID -ne  ]]; then
    echo "Not root user. Please run as root."
    exit
fi

# Install Docker if not
docker -v
if [[ $? -ne  ]]; then
    echo "Please install Docker first."
    exit
fi

REGISTRY_VERSION=2.2

# Download registry image v2.
docker pull registry:${REGISTRY_VERSION}

# Start registry container
mkdir /opt/registry
docker run -d -p : --restart=always -v /opt/registry:/var/lib/registry --name hummer_registry registry:${REGISTRY_VERSION}

检测生成的docker仓库：

[root@localhost ~]# docker ps -a
CONTAINER ID        IMAGE               COMMAND                  CREATED             STATUS              PORTS                    NAMES
eaa972942548        registry:2.2        "/bin/registry /et..."    minutes ago      Up  minutes       0.0.0.0:->/tcp   hummer_registry
[root@localhost ~]# 

查询开放的端口：

[root@localhost ~]# lsof -i:
COMMAND     PID USER   FD   TYPE DEVICE SIZE/OFF NODE NAME
docker-pr  root    4u  IPv6        0t0  TCP *:commplex-main (LISTEN)

2、客户端配置：

安装

yum -y install epel-release
yum -y install device-mapper-event-libs
yum -y install docker-io

修改配置文件（不修改无法和本地仓库进行认证连接）

vim /etc/sysconfig/docker   # 加上黄色标注的部分就可以了

[root@localhost ~]# cat /etc/sysconfig/docker
# /etc/sysconfig/docker
#
# Other arguments to pass to the docker daemon process
# These will be parsed by the sysv initscript and appended
# to the arguments list passed to docker -d

other_args="--insecure-registry 192.168.159.131:5000"
DOCKER_CERT_PATH=/etc/docker

# Resolves: rhbz# (docker issue #)
DOCKER_NOWARN_KERNEL_VERSION=

service docker restart

测试：下载一个镜像并上传到本地仓库

docker pull webdevops/nginx
docker images
docker tag webdevops/nginx 192.168.159.131:/nginx-chen # 注意这个固定的格式，否则报错
docker push 192.168.159.131:/nginx-chen  #出现以下提示表示push成功，
# 如果是加上tag： docker push  192.168.159.131:5000/chen:latest

[root@localhost ~]# docker push 192.168.159.131:/nginx-chen
The push refers to a repository [192.168.159.131:/nginx-chen] (len: )
ca89ae17bc84: Image already exists
2eed794b7b9a: Image successfully pushed
15a4031b10d3: Image successfully pushed
15a4031b10d3: Buffering to Disk
6c4863f14961: Image already exists
aa02f81f314b: Image already exists
0893fa3a44c9: Image successfully pushed
6565352c3a2b: Image successfully pushed
6565352c3a2b: Buffering to Disk
e86584bf870d: Image successfully pushed
928d4898ab17: Image successfully pushed
928d4898ab17: Buffering to Disk
073806b60691: Image already exists
7eb5c12881e1: Image already exists
63474e4f2842: Image successfully pushed
f7fdafe228d3: Image successfully pushed
8475d7efa2f0: Image successfully pushed
565220263a7c: Image successfully pushed
7d614f18edc3: Image successfully pushed
Digest: sha256:417cfafb30d330f5de3c9cef12ee935a321d16593bdd903de3d1017ad3eaa3f3
[root@localhost ~]#

删除下载的镜像，并从本地的仓库进行下载，看速度是否提高：

docker rmi webdevops/nginx
docker rmi 192.168.159.131:/nginx-chen
docker images
docker pull 192.168.159.131:5000/nginx-chen   # 此时从本地的仓库进行下载，发现是极速的秒传 

查询私有仓库中有哪些镜像：

[root@localhost ~]# curl -XGET http://192.168.159.131:5000/v2/_catalog
{"repositories":["busybox"]}

[root@localhost ~]# curl -XGET http://192.168.159.131:5000/v2/busybox/tags/list
{"name":"busybox","tags":["latest"]}