一点一滴努力,满仓满谷收成

原因主要在于内外网分离，自行搭建 YUM 源服务吧

1. 创建目录、拷贝rpm包
1.1 创建一个目录，用于存放 rpm 包

[root@tt1 /]# mkdir /YUM

1.2 放点 ISO 中的 rpm

[root@tt1 /]#mount /dev/cdrom /mnt
[root@tt1 /]# cp /mnt/Packages/a*rpm /YUM/ 

2. 创建 repository
2.1 安装 createrepo

[root@tt1 yum.repos.d]# yum install -y createrepo

2.2 创建 repository
在中产生元数据

[root@tt1 yum.repos.d]# createrepo /YUM/
Spawning worker 0 with 137 pkgs
Workers Finished
Saving Primary metadata
Saving file lists metadata
Saving other metadata
Generating sqlite DBs
Sqlite DBs complete
[root@tt1 yum.repos.d]# ll /YUM/  | grep repodata
drwxr-xr-x 2 root root     4096 May 29 13:00 repodata

2.3 仓库变更后，更新 repository
如果 rpm 包有增加或减少，需要执行以下命令

createrepo --update <repo_dir>

3. 安装nginx
3.1 安装 nginx

yum -y install epel-release
yum -y install nginx

3.2 修改 nginx 配置文件 /etc/nginx/nginx.conf

    server {
        listen       80 default_server;
        listen       [::]:80 default_server;
        server_name  _;
        root         /YUM;

        # Load configuration files for the default server block.
        include /etc/nginx/default.d/*.conf;

        location / {
                autoindex on;                      #这个必须有，为了能提供目录浏览
        }

        error_page 404 /404.html;
            location = /40x.html {
        }

        error_page 500 502 503 504 /50x.html;
            location = /50x.html {
        }
    }

3.3 启动 nginx 服务

systemctl start nginx

3.4 关闭iptables，selinux

4. 客户端上配置repo文件
备份原有 repo 文件

[root@test yum.repos.d]# pwd
/etc/yum.repos.d
[root@test yum.repos.d]# mkdir bak
[root@test yum.repos.d]# mv *.repo* bak 

新建 repo 文件

[root@test yum.repos.d]# vim my.repo

[my-repo]
name=myrepo
baseurl=http://192.168.133.128
gpgcheck=0
enabled=1

5. 从知名镜像站同步 rpm 包
如下是国防科技大学的,国内比较全的

[root@tt1 yum.repos.d]# rsync -av rsync://mirrors.ustc.edu.cn/centos/7/os/x86_64/Packages/ /YUM/ ; createrepo --update /YUM/

6. 私有docker yum源
6.1下载packages

mkdir /repo
cd /repo 
wget -m https://download.docker.com/linux/centos/7/x86_64/stable/

如果只想同步x86_64/stable下的内容可以使用
wget -m --no-parent https://download.docker.com/linux/centos/7/x86_64/stable/

全部同步下来大概100G的空间

6.2 配置Nginx

[root@tt1 conf.d]# pwd
/etc/nginx/conf.d
[root@tt1 conf.d]# 
[root@tt1 conf.d]# cat download.docker.com.conf 
server {
    listen       80;
    server_name  download.docker.com;

    location / {
        root   /repo/docker/download.docker.com/; 
        autoindex on;
    }
}

重新加载nginx配置

systemctl reload nginx

6.3 在client的机器上把download.docker.com加到dns或/etc/hosts里

[root@test docker]# hostname
test
[root@test docker]# cat /etc/hosts
127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4
::1         localhost localhost.localdomain localhost6 localhost6.localdomain6
192.168.133.128 download.docker.com

/etc/yum.repos.d/ 下放入docker-ce.repo文件:

[root@test yum.repos.d]# pwd
/etc/yum.repos.d
[root@test yum.repos.d]# cat docker-ce.repo
[docker-ce-stable]
name=Docker CE Stable - $basearch
baseurl=http://download.docker.com/linux/centos/7/$basearch/stable
enabled=1
gpgcheck=1
gpgkey=http://download.docker.com/linux/centos/gpg

[docker-ce-stable-debuginfo]
name=Docker CE Stable - Debuginfo $basearch
baseurl=http://download.docker.com/linux/centos/7/debug-$basearch/stable
enabled=0
gpgcheck=1
gpgkey=http://download.docker.com/linux/centos/gpg

[docker-ce-stable-source]
name=Docker CE Stable - Sources
baseurl=http://download.docker.com/linux/centos/7/source/stable
enabled=0
gpgcheck=1
gpgkey=http://download.docker.com/linux/centos/gpg

[docker-ce-edge]
name=Docker CE Edge - $basearch
baseurl=http://download.docker.com/linux/centos/7/$basearch/edge
enabled=0
gpgcheck=1
gpgkey=http://download.docker.com/linux/centos/gpg

[docker-ce-edge-debuginfo]
name=Docker CE Edge - Debuginfo $basearch
baseurl=http://download.docker.com/linux/centos/7/debug-$basearch/edge
enabled=0
gpgcheck=1
gpgkey=http://download.docker.com/linux/centos/gpg

[docker-ce-edge-source]
name=Docker CE Edge - Sources
baseurl=http://download.docker.com/linux/centos/7/source/edge
enabled=0
gpgcheck=1
gpgkey=http://download.docker.com/linux/centos/gpg

[docker-ce-test]
name=Docker CE Test - $basearch
baseurl=http://download.docker.com/linux/centos/7/$basearch/test
enabled=0
gpgcheck=1
gpgkey=http://download.docker.com/linux/centos/gpg

[docker-ce-test-debuginfo]
name=Docker CE Test - Debuginfo $basearch
baseurl=http://download.docker.com/linux/centos/7/debug-$basearch/test
enabled=0
gpgcheck=1
gpgkey=http://download.docker.com/linux/centos/gpg

[docker-ce-test-source]
name=Docker CE Test - Sources
baseurl=http://download.docker.com/linux/centos/7/source/test
enabled=0
gpgcheck=1
gpgkey=http://download.docker.com/linux/centos/gpg

[docker-ce-nightly]
name=Docker CE Nightly - $basearch
baseurl=http://download.docker.com/linux/centos/7/$basearch/nightly
enabled=0
gpgcheck=1
gpgkey=http://download.docker.com/linux/centos/gpg

[docker-ce-nightly-debuginfo]
name=Docker CE Nightly - Debuginfo $basearch
baseurl=http://download.docker.com/linux/centos/7/debug-$basearch/nightly
enabled=0
gpgcheck=1
gpgkey=http://download.docker.com/linux/centos/gpg

[docker-ce-nightly-source]
name=Docker CE Nightly - Sources
baseurl=http://download.docker.com/linux/centos/7/source/nightly
enabled=0
gpgcheck=1
gpgkey=http://download.docker.com/linux/centos/gpg

[root@test yum.repos.d]# 

6.4 尝试安装一下

yum -y install docker-ce

The end.