002.Docker安装部署

Posted 2021-01-30 itzgr

一 docker安装-CentOS系统

1.1 docker自动安装脚本

  1 [email protected]:~# wget -qO- https://get.docker.com/ | sh
  2 或——
  3 [email protected]:~# curl -sSL https://get.docker.com/ | sh

 

注意：若出现以下错误，可使用yum解决依赖——

Delta RPMs disabled because /usr/bin/yum provides applydeltarpmnot installed.

  1 yum provides applydeltarpm			#查询缺少的applydeltarpm所在包
  2 yum install libdevmapper* -y
  3 yum -y install deltarpm			#安装此包
  4 yum install -y epel-release			#有可能会依旧提示错误，安装此包即可
  5 [email protected]:~# docker version		#查询docker版本

 

1.2 docker yum安装

  1 [email protected]:~# yum -y remove docker   2                   docker-client   3                   docker-client-latest   4                   docker-common   5                   docker-latest   6                   docker-latest-logrotate   7                   docker-logrotate   8                   docker-selinux   9                   docker-engine-selinux  10                   docker-engine			               #若存在旧版需要全新安装可卸载旧版
 11 [email protected]:~# yum -y update
 12 [email protected]:~# yum install -y yum-utils  13 device-mapper-persistent-data  14 lvm2
 15 [email protected]:~# yum-config-manager  16 --add-repo  17 https://download.docker.com/linux/centos/docker-ce.repo		#配置docker源

 

提示：也可使用国内阿里云——

  1 [email protected]:~# yum-config-manager   2 --add-repo   3 http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo
  4 [email protected]:~# yum-config-manager --enable docker-ce-edge	        #开启源
  5 [email protected]:~# yum-config-manager --enable docker-ce-test	        #开启源
  6 [email protected]:~# yum -y install docker-ce				#安装docker
  7 [email protected]:~# yum -y install docker-registry			#安装docker仓库
  8 [email protected]:~# systemctl start docker.service
  9 [email protected]:~# systemctl enable docker.service		        #设为开机启动

 

 

二 docker安装-Ubuntu系统

2.1 更新源数据库

  1 [email protected]:~# apt-get remove docker docker-engine docker.io	#卸载旧版
  2 [email protected]:~# sudo apt-get update

 

2.2 安装软件包

  1 [email protected]:~# sudo apt-get -y install   2 apt-transport-https   3 ca-certificates   4 curl   5 software-properties-common			#安装软件包以允许apt通过HTTPS使用存储库

 

2.3 添加Docker的官方GPG密钥

  1 [email protected]:~# curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -

注意：也可添加阿里云GPG：

curl -fsSL https://mirrors.aliyun.com/docker-ce/linux/ubuntu/gpg | sudo apt-key add -

2.4 验证秘钥指纹

  1 [email protected]:~# sudo apt-key fingerprint 0EBFCD88

2.5 配置仓库并在此更新源

  1 [email protected]:~# sudo add-apt-repository   2 "deb [arch=amd64] https://download.docker.com/linux/ubuntu   3 $(lsb_release -cs)   4 stable"
  5 [email protected]:~# sudo apt-get update

 

注意：国内建议配置为阿里仓库，命令如下：

  1 [email protected]:~# sudo add-apt-repository "deb [arch=amd64] https://mirrors.aliyun.com/docker-ce/linux/ubuntu $(lsb_release -cs) stable"
  2 [email protected]:~# sudo apt-get update

 

2.6 安装docker ce

  1 [email protected]:~# sudo apt-get -y install docker-ce

2.7 测试并查看版本

  1 [email protected]:~# sudo docker run hello-world
  2 [email protected]:~# sudo docker version

 

注意：若存在旧版本可执行以下命令卸载旧版本——

apt-get remove docker docker-engine docker-common container-selinux docker-selinux

三 docker相关优化

3.1 配置docker加速器

  1 [email protected]:~# mkdir -p /etc/docker
  2 [email protected]:~# vim /etc/docker/daemon.json
  3 {
  4    "registry-mirrors": ["https://dbzucv6w.mirror.aliyuncs.com"]
  5 }
  6 [email protected]:~# cat /etc/docker/daemon.json
  7 {
  8   "registry-mirrors": ["https://dbzucv6w.mirror.aliyuncs.com"]
  9 }
 10 [email protected]:~# systemctl daemon-reload
 11 [email protected]:~# systemctl restart docker
 12 [email protected]:~# sudo systemctl enable docker

 

提示：docker通过https://hub.docker.com/搭建镜像共享生态系统，由于从国外拉取源比较慢，建议配置国内阿里加速器。

3.2 更改docker镜像路径

  1 [email protected]:~# vi /usr/lib/systemd/system/docker.service
  2 ExecStart=/usr/bin/dockerd-current --graph=/data/docker		#仅需要追加新路径
  3 [email protected]:~# systemctl daemon-reload
  4 [email protected]:~# systemctl restart docker

参考：https://docs.docker.com/install/