Docker basic installation and preliminary optimization

One, Docker basic installation

1, install dependent packages

yum install -y yum-utils device-mapper-persistent-data lvm2

2. Set up Alibaba Cloud image source

yum-config-manager --add-repo https://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo

3. Install Docker-CE

yum install -y docker-ce

4. Turn off the firewall

systemctl stop firewalld.service

setenforce o

vim /etc/selinux/config
SELINUX=disabled

systemctl start docker.service
systemctl enable docker.service

Second, image acceleration

tee /etc/docker/daemon.json <<-'EOF'
{
"registry-mirrors": ["*"]
}
EOF
systemctl daemon-reload
systemctl restart docker

Third, network optimization

vim /etc/sysctl.conf
net.ipv4.ip_forward=1

sysctl -p
service network restart
systemctl restart docker