全面解析Docker容器部署LNMP环境：详细指南与常见问题解决方案之二——基础镜像篇

#关闭防火墙
[root@localhost ~]# systemctl disable --now firewalld
[root@localhost ~]# setenforce 0
setenforce: SELinux is disabled

#安装docker
[root@localhost ~]# yum install -y yum-utils device-mapper-persistent-data lvm2[root@localhost ~]# cd /etc/yum.repos.d/
[root@localhost yum.repos.d]# yum-config-manager --add-repo https://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo 
[root@localhost yum.repos.d]# yum install -y docker-ce
[root@docker ~]# systemctl start docker.service
[root@docker ~]# systemctl enable docker.service 

#镜像加速
[root@docker ~]# tee /etc/docker/daemon.json <<-'EOF'
{
   
    "registry-mirrors": ["https://获取的加速地址.mirror.aliyuncs.com"]
}
EOF
[root@docker ~]# systemctl daemon-reload
[root@docker ~]# systemctl restart docker

#网络优化
[root@docker ~]# vim /etc/sysctl.conf
······省略······
net.ipv4.ip_forward=1
[root@docker ~]# sysctl -p
[root@docker ~]# systemctl restart network
[root@docker ~]# systemctl restart docker

[root@docker ~]# docker pull centos:7
#从公有仓库中下载centos 7作为系统基础镜像
[root@docker ~]# docker images
REPOSITORY   TAG       IMAGE ID       CREATED       SIZE
centos       7         eeb6ee3f44bd   4 weeks ago   204MB