docker容器技术

0、环境准备类：

curl  http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo -o /etc/yum.repos.d/docker-ce.repo
wget -O /etc/yum.repos.d/epel.repo http://mirrors.aliyun.com/repo/epel-7.repo
curl -o /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo


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


yum list docker-ce.x86_64 --showduplicates | sort -r


yum install -y --setopt=obsoletes=0 docker-ce-17.03.2.ce-1.el7.centos.x86_64 docker-ce-selinux-17.03.2.ce-1.el7.centos.noarch


systemctl daemon-reload
systemctl restart docker

docker version
docker  info


配置镜像加速


阿里云Docker-hub

https://cr.console.aliyun.com/cn-hangzhou/mirrors

mkdir -p /etc/docker

tee /etc/docker/daemon.json <<-‘EOF‘
{
   "registry-mirrors": ["https://68rmyzg7.mirror.aliyuncs.com"]
}
EOF      
      
      
或者:

vim   /etc/docker/daemon.json

    {
         "registry-mirrors": ["https://68rmyzg7.mirror.aliyuncs.com"]
    }


1. pull常用镜像
docker pull  centos:6.9
docker pull  centos:7.5.1804
docker pull  nginx



CPU   MEM   IO

OS  :  Kernel