标签：enable ima class different ota with as 关系 disable tar
//https://docs.docker.com/install/linux/docker-ce/centos/
To get started with Docker CE on CentOS, make sure you meet the prerequisites, then install Docker.
// meet vt. 满足；遇见；对付 prerequisite n.先决条件
To install Docker CE, you need a maintained version of CentOS 7. Archived versions aren’t supported or tested.
The centos-extras repository must be enabled. This repository is enabled by default, but if you have disabled it, you need to re-enable it.
The overlay2 storage driver is recommended.
Older versions of Docker were called docker or docker-engine. If these are installed, uninstall them, along with associated dependencies.
$ sudo yum remove docker docker-client docker-client-latest docker-common docker-latest docker-latest-logrotate docker-logrotate docker-selinux docker-engine-selinux docker-engine
It’s OK if yum reports that none of these packages are installed. //如果yum 报告这些包都没有安装，那也没关系
The contents of /var/lib/docker/, including images, containers, volumes, and networks, are preserved. The Docker CE package is now called docker-ce.
//preserved [pr?‘z??vd] adj. 保藏的；
You can install Docker CE in different ways, depending on your needs:
Most users set up Docker’s repositories and install from them, for ease of installation and upgrade tasks. This is the recommended approach.
Some users download the RPM package and install it manually and manage upgrades completely manually. This is useful in situations such as installing Docker on air-gapped systems with no access to the internet. //气隙系统（Air-gapped）是一种将电脑进行完全隔离（不与互联网以及任何其他联网设备连接）以保护数据安全的系统
In testing and development environments, some users choose to use automated convenience scripts to install Docker.
标签：enable ima class different ota with as 关系 disable tar
原文地址：https://www.cnblogs.com/hzhuxin/p/8969326.html
