Centos 7 Docker 安装

1、设置主机网络，关闭防火墙，selinux等

[root@localhost ~]# cat  /etc/sysconfig/network-scripts/ifcfg-ens32 
TYPE=Ethernet
BOOTPROTO=static
NAME=ens32
DEVICE=ens32
ONBOOT=yes
IPADDR=192.168.xxx.10
NETMASK=255.255.255.0
GATEWAY=192.168.xxx.2
DNS1=192.168.xxx.2
DNS2=114.114.114.114
DNS3=8.8.8.8
[root@localhost ~]# systemctl restart network

#!/bin/bash
echo "----关闭selinux----"
sed -i '/^SELINUX=.*/c SELINUX=disabled' /etc/selinux/config
sed -i 's/^SELINUXTYPE=.*/SELINUXTYPE=disabled/g' /etc/selinux/config
grep --color=auto '^SELINUX' /etc/selinux/config
setenforce 0

sleep 1
echo "----关闭防火墙----"
systemctl stop firewalld
systemctl disable firewalld
systemctl stop iptables
systemctl disable iptables

sleep 1
echo "----关闭network管理系统----"
systemctl stop NetworkManager
systemctl disable NetworkManager

sleep 1
echo "----安装依赖插件----"
yum -y install epel-release wget
mkdir -p /etc/yum.repos.d/bak
mv /etc/yum.repos.d/* /etc/yum.repos.d/bak
wget http://mirrors.aliyun.com/repo/Centos-7.repo -P /etc/yum.repos.d/
wget http://mirrors.aliyun.com/repo/epel-7.repo -P /etc/yum.repos.d/
yum -y install wget vim ntp unzip zip net-snmp* telnet sysstat gcc gcc-c++ make openssl* perl ncurses* nethogs lsof lrzsz libselinux-python bash-completion net-tools setuptool system-config-network-tui ntsysv expat-devel psmisc nmap fping traceroute python2-pip readline-devel cpp cmake bison libaio-devel ncurses-devel perl-DBD-MySQL perl-Time-HiRes openssh-clients libaio zlib-devel libssl.so.6 numactl jemalloc compat-readline5-devel bind-utlis lsof

sleep 1
echo "----修改时区----"
timedatectl set-timezone Asia/Shanghai
ln -sf /usr/share/zoneinfo/Asia/Shanghai /etc/localtime

sleep 1
echo "----禁止使用Ctrl+Alt+Del重启----"
mv /usr/lib/systemd/system/ctrl-alt-del.target /usr/lib/systemd/system/ctrl-alt-del.target.bak
init q

sleep 1
echo "----修改字符编码----"
echo 'LANG="en_US.UTF-8"
SUPPORTED="zh_CN.GB18030:zh_CN:zh:en_US.UTF-8:en_US:en"
SYSFONT="latarcyrheb-sun16"' > /etc/locale.conf

#sleep 1
#echo "----内网服务器，配置同步时间----"
#systemctl stop ntpd
#systemctl disable ntpd

sleep 1
echo "----可上外网服务器，配置同步时间----"
ntpdate ntp1.aliyun.com
echo '*/5 * * * * /usr/sbin/ntpdate ntp1.aliyun.com > /dev/null 2>&1' >> /var/spool/cron/root



echo "----优化tcp连接数----"
sleep 1
echo "----用户可用的最大进程数量----"
cat >> /etc/security/limits.conf << EOF
* soft nproc 65536
* hard nproc 65536
* soft nofile 65536
* hard nofile 65536
EOF

sleep 1
echo "----Linux最大进程数最大进程数量----"
cat >> /etc/security/limits.d/20-nproc.conf << EOF
* soft nproc unlimited
* hard nproc unlimited
EOF

sleep 1
#这里使用的是64位的系统，所以目录是lib64，请先确认此文件是否存在，不然会导致密码登陆报moudule is unknow
#cat >> /etc/pam.d/login << EOF
#session required /lib64/security/pam_limits.so
#session required pam_limits.so
#EOF

sleep 1
echo "----Linux系统所有进程共计可以打开的文件数量----"
cat >> /etc/sysctl.conf << EOF
fs.file-max = 65535
EOF

sleep 1
echo "----用户登录系统后打开文件数量----"
cat >> /etc/profile << EOF
ulimit -HSn 65535
EOF



sleep 1
#echo "----设置用户登录记录----"
echo '#!/bin/bash
loginFile="/var/log/sshd/sshlogin.log"
user=$USER
ip=${SSH_CLIENT%% *}
#if [ "$user" != "root" ] || [ "$ip" != "192.168.31.88" ]
 #then
echo "LoginUser:"$user"--IP:"$ip"--LoginTime:"`date "+%Y-%m-%d %H:%M:%S"` >> "$loginFile";
#fi' >> /etc/ssh/sshrc
mkdir /var/log/sshd
touch /var/log/sshd/sshlogin.log
chmod -R 777 /var/log/sshd
chmod +x /etc/ssh/sshrc

sleep 1
#echo "----查看历史操作记录，并加时间戳----"
echo 'export HISTTIMEFORMAT="%F %T `whoami` "' >> /etc/profile
source /etc/profile

sleep 1
#echo "----系统启动配置文件赋权----"
chmod +x /etc/rc.d/rc.local

2、安装docekr

[root@localhost ~]# yum remove docker docker-client docker-client-latest docker-common docker-latest docker-latest-logrotate docker-logrotate docker-engine
[root@localhost ~]# yum-config-manager --add-repo http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo
[root@localhost ~]# yum -y install docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin
[root@localhost ~]# systemctl start docker
[root@localhost ~]# systemctl enable docker
[root@localhost ~]# docker info