Centos 7.4 rpm 包安装 docker

运气好时非常顺利，一个 rpm 包，一执行安装，就完成了，比如今天在单位的虚拟机上。运气没那么好的时候，要手动安装一些信赖，比如下班回家后的我。感谢运气不那么好，要不然就不会整理这篇文档了。

安装包集合：https://download.docker.com/linux/centos/7/x86_64/stable/Packages/

此次安装用到了列表中的：

白天虚拟机上，竟然只安装 docker-ce-18.09.4-3.el7.x86_64.rpm 就可以了，结果晚上云服务器上陆续出现下面的问题

尝试直接安装 docker-ce-18.09.4-3.el7.x86_64.rpm

 [root@iZxxxxxwuf9Z ftp_user]# yum install ./docker-ce-18.09.4-3.el7.x86_64.rpm
 Loaded plugins: fastestmirror
 Examining ./docker-ce-18.09.4-3.el7.x86_64.rpm: 3:docker-ce-18.09.4-3.el7.x86_64
 Marking ./docker-ce-18.09.4-3.el7.x86_64.rpm to be installed
 **************此处省略一大堆输出**************
 --> Finished Dependency Resolution
 Error: Package: 3:docker-ce-18.09.4-3.el7.x86_64 (/docker-ce-18.09.4-3.el7.x86_64)
            Requires: docker-ce-cli
 Error: Package: 3:docker-ce-18.09.4-3.el7.x86_64 (/docker-ce-18.09.4-3.el7.x86_64)
            Requires: containerd.io >= 1.2.2-3
  You could try using --skip-broken to work around the problem
 ** Found 2 pre-existing rpmdb problem(s), 'yum check' output follows:
 2:postfix-2.10.1-6.el7.x86_64 has missing requires of libmysqlclient.so.18()(64bit)
 2:postfix-2.10.1-6.el7.x86_64 has missing requires of libmysqlclient.so.18(libmysqlclient_18)(64bit)
 [root@iZxxxxxwuf9Z ftp_user]#

根据提示，“Requires: docker-ce-cli” 和 “Requires: containerd.io >= 1.2.2-3”，所以安装了前面提到的另外两个 rpm 文件。

 [root@iZxxxxxwuf9Z ftp_user]# yum install containerd.io-1.2.5-3.1.el7.x86_64.rpm 
 **************此处省略一大堆输出**************
 [root@iZxxxxxwuf9Z ftp_user]# yum install docker-ce-cli-18.09.4-3.el7.x86_64.rpm 
 **************此处省略一大堆输出**************
 [root@iZxxxxxwuf9Z ftp_user]#

再尝试安装 docker-ce-18.09.4-3.el7.x86_64.rpm

 [root@iZxxxxxwuf9Z ftp_user]# yum install ./docker-ce-18.09.4-3.el7.x86_64.rpm 
 Loaded plugins: fastestmirror
 Examining ./docker-ce-18.09.4-3.el7.x86_64.rpm: 3:docker-ce-18.09.4-3.el7.x86_64
 Marking ./docker-ce-18.09.4-3.el7.x86_64.rpm to be installed
 Resolving Dependencies
 **************此处省略一大堆输出**************
 Downloading packages:
 Delta RPMs disabled because /usr/bin/applydeltarpm not installed.


 Error downloading packages:
   selinux-policy-targeted-3.13.1-229.el7_6.9.noarch: [Errno 5] [Errno 12] Cannot allocate memory
 **************此处省略一大堆输出**************
   libsepol-devel-2.5-10.el7.x86_64: [Errno 5] [Errno 12] Cannot allocate memory

根据提示 “because /usr/bin/applydeltarpm not installed”，所以如下操作

 [root@iZxxxxxwuf9Z ftp_user]# yum provides '*/applydeltarpm' 
 Loaded plugins: fastestmirror
 Loading mirror speeds from cached hostfile
 base/7/x86_64/filelists_db
 | 7.1 MB  00:00:00     
 epel/x86_64/filelists_db
 |  11 MB  00:00:00     
 extras/7/x86_64/filelists_db
 | 236 kB  00:00:00     
 updates/7/x86_64/filelists_db
 | 2.7 MB  00:00:00     
 deltarpm-3.6-3.el7.x86_64 : Create deltas between rpms
 Repo        : base
 Matched from:
 Filename    : /usr/bin/applydeltarpm

原来是 deltarpm-3.6-3.el7.x86_64 的问题，所以继续操作

 [root@iZxxxxxwuf9Z ftp_user]# yum install deltarpm
 Loaded plugins: fastestmirror
 Loading mirror speeds from cached hostfile
 Resolving Dependencies
 --> Running transaction check
 ---> Package deltarpm.x86_64 0:3.6-3.el7 will be installed
 --> Finished Dependency Resolution
 **************此处省略一大堆输出**************                                                                                                                                                                    
 Complete!

最后一次尝试安装 docker-ce-18.09.4-3.el7.x86_64.rpm

 [root@iZxxxxxwuf9Z ftp_user]# yum install docker-ce-18.09.4-3.el7.x86_64.rpm 
 Loaded plugins: fastestmirror
 Examining docker-ce-18.09.4-3.el7.x86_64.rpm: 3:docker-ce-18.09.4-3.el7.x86_64
 Marking docker-ce-18.09.4-3.el7.x86_64.rpm to be installed
 Resolving Dependencies
 **************此处省略一大堆输出**************
 Complete!
 [root@iZxxxxxwuf9Z ftp_user]#

愉快完成

参考：官方文档

来源：oschina

链接：https://my.oschina.net/u/3251146/blog/3034318

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