docker_practice/install/offline.md

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# 离线部署Docker
[TOC]
生产环境中一般都是没有公网资源的本文介绍如何在生产服务器上离线部署`Docker`
括号内的字母表示该操作需要在哪些服务器上执行
<img src="_images/image-20200412202617411.png" alt="Docker-offile-install-top" style="zoom:30%;" />
## Centos7 离线安装Docker
### YUM本地文件安装推荐
推荐这种方式是因为在生产环境种一般会选定某个指定的文档软件版本使用
#### 查询可用的软件版本(A)
```bash
#下载清华的镜像源文件
wget -O /etc/yum.repos.d/docker-ce.repo https://download.docker.com/linux/centos/docker-ce.repo
sudo sed -i 's+download.docker.com+mirrors.tuna.tsinghua.edu.cn/docker-ce+' /etc/yum.repos.d/docker-ce.repo
yum update
```
```bash
sudo yum list docker-ce --showduplicates|sort -r
Loading mirror speeds from cached hostfile
Loaded plugins: fastestmirror
docker-ce.x86_64 3:19.03.8-3.el7 docker-ce-stable
docker-ce.x86_64 3:19.03.7-3.el7 docker-ce-stable
docker-ce.x86_64 3:19.03.6-3.el7 docker-ce-stable
docker-ce.x86_64 3:19.03.5-3.el7 docker-ce-stable
docker-ce.x86_64 3:19.03.4-3.el7 docker-ce-stable
docker-ce.x86_64 3:19.03.3-3.el7 docker-ce-stable
docker-ce.x86_64 3:19.03.2-3.el7 docker-ce-stable
docker-ce.x86_64 3:19.03.1-3.el7 docker-ce-stable
....
```
#### 下载到指定文件夹(A)
```bash
sudo yum install --downloadonly --downloaddir=/tmp/docker-19.03 docker-ce-19.03.8-3.el7 docker-ce-cli-19.03.8-3.el7
```
```bash
Dependencies Resolved
====================================================================================================================================================================================
Package Arch Version Repository Size
====================================================================================================================================================================================
Installing:
docker-ce x86_64 3:19.03.8-3.el7 docker 25 M
Installing for dependencies:
container-selinux noarch 2:2.107-3.el7 extras 39 k
containerd.io x86_64 1.2.13-3.1.el7 docker 23 M
docker-ce-cli x86_64 1:19.03.8-3.el7 docker 40 M
Transaction Summary
====================================================================================================================================================================================
Install 1 Package (+3 Dependent packages)
Total download size: 87 M
Installed size: 363 M
Background downloading packages, then exiting:
(1/4): container-selinux-2.107-3.el7.noarch.rpm | 39 kB 00:00:00
(2/4): containerd.io-1.2.13-3.1.el7.x86_64.rpm | 23 MB 00:00:00
(3/4): docker-ce-19.03.8-3.el7.x86_64.rpm | 25 MB 00:00:00
(4/4): docker-ce-cli-19.03.8-3.el7.x86_64.rpm | 40 MB 00:00:00
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Total 118 MB/s | 87 MB 00:00:00
exiting because "Download Only" specified
```
#### 复制到目标服务器之后进入文件夹安装(C-N)
```bash
yum install *.rpm
```
#### 锁定软件版本(C-N)
##### 下载锁定版本软件
可参考下文的网络源搭建
```bash
sudo yum install yum-plugin-versionlock
```
##### 锁定软件版本
```bash
sudo yum versionlock add docker
```
##### 查看锁定列表
```bash
sudo yum versionlock list
```
```bash
Loaded plugins: fastestmirror, versionlock
3:docker-ce-18.09.9-3.el7.*
versionlock list done
```
##### 锁定后无法再更新
```bash
sudo yum install docker-ce
Loaded plugins: fastestmirror, versionlock
Loading mirror speeds from cached hostfile
Excluding 1 update due to versionlock (use "yum versionlock status" to show it)
Package 3:docker-ce-18.09.9-3.el7.x86_64 already installed and latest version
Nothing to do
```
##### 解锁指定软件
```bash
sudo yum versionlock delete docker-ce
```
```bash
Loaded plugins: fastestmirror, versionlock
Deleting versionlock for: 3:docker-ce-18.09.9-3.el7.*
versionlock deleted: 1
```
##### 解锁所有软件
```bash
sudo yum versionlock delete all
```
### YUM 本地源服务器搭建安装Docker
#### 挂载 ISO 镜像搭建本地 File AB
```bash
# 删除其他网络源
rm -f /etc/yum.repo.d/*
# 挂载光盘或者iso镜像
mount /dev/cdrom /mnt
```
```bash
# 添加本地源
cat >/etc/yum.repos.d/local_files.repo<< EOF
[Local_Files]
name=Local_Files
baseurl=file:///mnt
enable=1
gpgcheck=0
gpgkey=file:///mnt/RPM-GPG-KEY-CentOS-7
EOF
```
```bash
# 测试刚才的本地源,安装createrepo软件
yum clean all
yum install createrepo -y
```
#### 根据本地文件搭建BASE网络源B
```bash
# 安装apache 服务器
yum install httpd -y
# 挂载光盘
mount /dev/cdrom /mnt
# 新建centos目录
mkdir /var/www/html/base
# 复制光盘内的文件到刚才新建的目录
cp -R /mnt/Packages/* /var/www/html/base/
createrepo /var/www/html/centos/
systemctl enable httpd
systemctl start httpd
```
#### 下载Docker-CE 镜像仓库A
在有网络的服务器上下载Docker-ce镜像
```bash
# 下载清华的镜像源文件
wget -O /etc/yum.repos.d/docker-ce.repo https://download.docker.com/linux/centos/docker-ce.repo
sudo sed -i 's+download.docker.com+mirrors.tuna.tsinghua.edu.cn/docker-ce+' /etc/yum.repos.d/docker-ce.repo
```
```bash
# 新建 docker-ce目录
mkdir /tmp/docker-ce/
# 把镜像源同步到镜像文件中
reposync -r docker-ce-stable -p /tmp/docker-ce/
```
#### 创建仓库索引B
把下载的 docker-ce 文件夹复制到离线的服务器
```bash
# 把docker-ce 文件夹复制到/var/www/html/docker-ce
# 重建索引
createrepo /var/www/html/docker-ce/
```
#### YUM 客户端设置C...N
```bash
rm -f /etc/yum.repo.d/*
cat >/etc/yum.repos.d/local_files.repo<< EOF
[local_base]
name=local_base
# 改成B服务器地址
baseurl=http://x.x.x.x/base
enable=1
gpgcheck=0
proxy=_none_
[docker_ce]
name=docker_ce
# 改成B服务器地址
baseurl=http://x.x.x.x/base
enable=1
gpgcheck=0
proxy=_none_
EOF
```
#### Docker 安装C...N
```bash
sudo yum makecache fast
sudo yum install docker-ce docker-ce-cli containerd.io
sudo systemctl enable docker
```