docker下安装centos

# 1. 拉取centos7镜像
docker pull centos:7
# 2. 启动镜像centos7，如果不指定 /bin/bash，容器运行后会自动停止
docker run -d -i -t <IMAGE ID> /bin/bash
# 3. 进入容器
docker exec -it <CONTAINER ID> bash
# 4. 进入后发现没有ifconfig，直接yum安装
yum install -y net-tools

yum install -y wget
wget -O /etc/yum.repos.d/epel.repo http://mirrors.aliyun.com/repo/epel-7.repo
yum install -y openssh-clients nc mysql lrzsz htop less
yum install -y mysql

ref: https://blog.csdn.net/marke_huang/article/details/82996909