Linux安装Docker

要求：系统内核3.10及以上

[root@devops1 ~]# uname -a
Linux devops1 3.10.0-957.el7.x86_64 #1 SMP Thu Oct 4 20:48:51 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux

1. 卸载Docker或者清理残留

yum remove docker
docker-client
docker-client-latest
docker-common
docker-latest
docker-latest-logrotate
docker-logrotate
docker-engine

2. 下载需要的工具包

yum install -y yum-utils

3. 设置阿里云的Docker镜像仓库

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

4. 安装docker

yum -y install docker-ce docker-ce-cli containerd.io
#出现completed即安装成功

5. 启动Docker并设置为开机自启

# 启动docker
systemctl start docker
# 开机自启
systemctl enable docker

6. 配置阿里云镜像

# * 代表需要自己到阿里云官网获取链接
sudo mkdir -p /etc/docker
sudo tee /etc/docker/daemon.json <<-'EOF'
{
  "registry-mirrors": ["https://*"]
}
EOF
sudo systemctl daemon-reload
sudo systemctl restart docker