Docker引擎的安装
目录
准备工作
防火墙规则配置
[root@localhost ~]# iptables -F
[root@localhost ~]# iptables -X
[root@localhost ~]# iptables -Z
[root@localhost ~]# /usr/sbin/iptables-save
# Generated by iptables-save v1.4.21 on Sat Nov 30 22:16:30 2019 *mangle :PREROUTING ACCEPT [198:17752] :INPUT ACCEPT [198:17752] :FORWARD ACCEPT [0:0] :OUTPUT ACCEPT [84:10713]
配置SELinux
sed -i 's/SELINUX=enforcing/SELINUX=disabled/g' /etc/selinux/config
reboot
关闭Swap交换分区
[root@localhost ~]# swapoff -a
[root@localhost ~]# sed -i "s/\/dev\/mapper\/centos-swap/\#\/dev\/mapper\/centos-swap/g" /etc/fstab
查看Swap交换分区：
[root@localhost ~]# free -m
total used free shared buff/cache available Mem: 1990 130 1717 9 141 1700
开启路由转发
[root@localhost ~]# cat >> /etc/sysctl.conf << EOF > net.ipv4.ip_forward=1 > net.bridge.bridge-nf-call-ip6tables = 1 > net.bridge.bridge-nf-call-iptables = 1 > EOF
[root@localhost ~]# modprobe br_netfilter
[root@localhost ~]# sysctl -p
输出：
net.ipv4.ip_forward = 1 net.bridge.bridge-nf-call-ip6tables = 1 net.bridge.bridge-nf-call-iptables = 1
Docker引擎安装
安装依赖包
yum install -y yum-utils device-mapper-persistent-data
配置仓库
yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo
安装docker-ce
此处安装指定的Docker版本。
[root@localhost yum.repos.d]# yum list docker-ce --showduplicates | sort -r
Loading mirror speeds from cached hostfile Loaded plugins: fastestmirror 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 docker-ce.x86_64 3:19.03.0-3.el7 docker-ce-stable docker-ce.x86_64 3:18.09.9-3.el7 docker-ce-stable docker-ce.x86_64 3:18.09.8-3.el7 docker-ce-stable docker-ce.x86_64 3:18.09.7-3.el7 docker-ce-stable docker-ce.x86_64 3:18.09.6-3.el7 docker-ce-stable docker-ce.x86_64 3:18.09.5-3.el7 docker-ce-stable docker-ce.x86_64 3:18.09.4-3.el7 docker-ce-stable docker-ce.x86_64 3:18.09.3-3.el7 docker-ce-stable docker-ce.x86_64 3:18.09.2-3.el7 docker-ce-stable docker-ce.x86_64 3:18.09.1-3.el7 docker-ce-stable docker-ce.x86_64 3:18.09.0-3.el7 docker-ce-stable docker-ce.x86_64 18.06.3.ce-3.el7 docker-ce-stable docker-ce.x86_64 18.06.2.ce-3.el7 docker-ce-stable docker-ce.x86_64 18.06.1.ce-3.el7 docker-ce-stable docker-ce.x86_64 18.06.0.ce-3.el7 docker-ce-stable docker-ce.x86_64 18.03.1.ce-1.el7.centos docker-ce-stable docker-ce.x86_64 18.03.0.ce-1.el7.centos docker-ce-stable docker-ce.x86_64 17.12.1.ce-1.el7.centos docker-ce-stable docker-ce.x86_64 17.12.0.ce-1.el7.centos docker-ce-stable docker-ce.x86_64 17.09.1.ce-1.el7.centos docker-ce-stable docker-ce.x86_64 17.09.0.ce-1.el7.centos docker-ce-stable docker-ce.x86_64 17.06.2.ce-1.el7.centos docker-ce-stable docker-ce.x86_64 17.06.1.ce-1.el7.centos docker-ce-stable docker-ce.x86_64 17.06.0.ce-1.el7.centos docker-ce-stable docker-ce.x86_64 17.03.3.ce-1.el7 docker-ce-stable docker-ce.x86_64 17.03.2.ce-1.el7.centos docker-ce-stable docker-ce.x86_64 17.03.1.ce-1.el7.centos docker-ce-stable docker-ce.x86_64 17.03.0.ce-1.el7.centos docker-ce-stable Available Packages
安装docker及对应的软件：
yum install docker-ce-18.09.6 docker-ce-cli-18.09.6 containerd.io -y
如遇到错误:Error: Package: 3:docker-ce-18.09.6-3.el7.x86_64 (docker-ce-stable)Requires: container-selinux >= 2.9
需要执行以下命令：
yum install policycoreutils-python wget http://mirror.centos.org/centos/7/extras/x86_64/Packages/container-selinux-2.107-3.el7.noarch.rpm rpm -ivh container-selinux-2.107-3.el7.noarch.rpm
启动Docker
[root@localhost yum.repos.d]# systemctl daemon-reload
[root@localhost yum.repos.d]# systemctl restart docker
[root@localhost yum.repos.d]# systemctl enable docker
Created symlink from /etc/systemd/system/multi-user.target.wants/docker.service to /usr/lib/systemd/system/docker.service.
[root@localhost yum.repos.d]# docker info
Containers: 0 Running: 0 Paused: 0 Stopped: 0 Images: 0 Server Version: 18.09.6 Storage Driver: overlay2
