一、Docker的安装
1.1、安装相关依赖
[woods@localhost ~]$ yum install -y yum-utils
错误：该命令必须以 root 用户运行
[woods@localhost ~]$ sudo yum install -y yum-utils
CentOS-8 - AppStream 6.2 kB/s | 4.3 kB 00:00
CentOS-8 - Base 123 B/s | 3.9 kB 00:32
CentOS-8 - Extras 952 B/s | 1.5 kB 00:01
依赖关系解决。
=======================================================================================
软件包 架构 版本 仓库 大小
=======================================================================================
安装:
yum-utils noarch 4.0.8-3.el8 BaseOS 64 k
事务概要
=======================================================================================
安装 1 软件包
总下载：64 k
安装大小：19 k
下载软件包：
yum-utils-4.0.8-3.el8.noarch.rpm 360 kB/s | 64 kB 00:00
---------------------------------------------------------------------------------------
总计 84 kB/s | 64 kB 00:00
警告：/var/cache/dnf/BaseOS-929b586ef1f72f69/packages/yum-utils-4.0.8-3.el8.noarch.rpm: 头V3 RSA/SHA256 Signature, 密钥 ID 8483c65d: NOKEY
CentOS-8 - Base 1.6 MB/s | 1.6 kB 00:00
导入 GPG 公钥 0x8483C65D:
Userid: "CentOS (CentOS Official Signing Key) <security@centos.org>"
指纹: 99DB 70FA E1D7 CE22 7FB6 4882 05B5 55B3 8483 C65D
来自: /etc/pki/rpm-gpg/RPM-GPG-KEY-centosofficial
导入公钥成功
运行事务检查
事务检查成功。
运行事务测试
事务测试成功。
运行事务
准备中 : 1/1
安装 : yum-utils-4.0.8-3.el8.noarch 1/1
运行脚本: yum-utils-4.0.8-3.el8.noarch 1/1
验证 : yum-utils-4.0.8-3.el8.noarch 1/1
已安装:
yum-utils-4.0.8-3.el8.noarch
完毕！
[woods@localhost ~]$
1.2、查看Docker版本
[woods@localhost ~]$ sudo yum list docker-ce --showduplicates | sort -r
[sudo] woods 的密码：
docker-ce.x86_64 3:19.03.8-3.el7 docker-ce-stable
docker-ce.x86_64 3:19.03.7-3.el7 docker-ce-stable
docker-ce.x86_64 3:19.03.6-3.el7 docker-ce-stable
docker-ce.x86_64 3:19.03.5-3.el7 docker-ce-stable
docker-ce.x86_64 3:19.03.4-3.el7 docker-ce-stable
docker-ce.x86_64 3:19.03.3-3.el7 docker-ce-stable
docker-ce.x86_64 3:19.03.2-3.el7 docker-ce-stable
docker-ce.x86_64 3:19.03.1-3.el7 docker-ce-stable
docker-ce.x86_64 3:19.03.0-3.el7 docker-ce-stable
docker-ce.x86_64 3:18.09.9-3.el7 docker-ce-stable
docker-ce.x86_64 3:18.09.8-3.el7 docker-ce-stable
docker-ce.x86_64 3:18.09.7-3.el7 docker-ce-stable
docker-ce.x86_64 3:18.09.6-3.el7 docker-ce-stable
docker-ce.x86_64 3:18.09.5-3.el7 docker-ce-stable
docker-ce.x86_64 3:18.09.4-3.el7 docker-ce-stable
docker-ce.x86_64 3:18.09.3-3.el7 docker-ce-stable
docker-ce.x86_64 3:18.09.2-3.el7 docker-ce-stable
docker-ce.x86_64 3:18.09.1-3.el7 docker-ce-stable
docker-ce.x86_64 3:18.09.0-3.el7 docker-ce-stable
docker-ce.x86_64 18.06.3.ce-3.el7 docker-ce-stable
docker-ce.x86_64 18.06.2.ce-3.el7 docker-ce-stable
docker-ce.x86_64 18.06.1.ce-3.el7 docker-ce-stable
docker-ce.x86_64 18.06.0.ce-3.el7 docker-ce-stable
docker-ce.x86_64 18.03.1.ce-1.el7.centos docker-ce-stable
docker-ce.x86_64 18.03.0.ce-1.el7.centos docker-ce-stable
docker-ce.x86_64 17.12.1.ce-1.el7.centos docker-ce-stable
docker-ce.x86_64 17.12.0.ce-1.el7.centos docker-ce-stable
docker-ce.x86_64 17.09.1.ce-1.el7.centos docker-ce-stable
docker-ce.x86_64 17.09.0.ce-1.el7.centos docker-ce-stable
docker-ce.x86_64 17.06.2.ce-1.el7.centos docker-ce-stable
docker-ce.x86_64 17.06.1.ce-1.el7.centos docker-ce-stable
docker-ce.x86_64 17.06.0.ce-1.el7.centos docker-ce-stable
docker-ce.x86_64 17.03.3.ce-1.el7 docker-ce-stable
docker-ce.x86_64 17.03.2.ce-1.el7.centos docker-ce-stable
docker-ce.x86_64 17.03.1.ce-1.el7.centos docker-ce-stable
docker-ce.x86_64 17.03.0.ce-1.el7.centos docker-ce-stable
Docker CE Stable - x86_64 2.0 kB/s | 22 kB 00:11
上次元数据过期检查：0:00:09 前，执行于 2020年05月12日 星期二 10时35分48秒。
可安装的软件包
[woods@localhost ~]$
1.3、安装Docker(docker-ce是社区版 与 ee是企业版)
安装docker-ce(docker服务器)、docker-ce-cli(docer客户端)和 containerd.io(用于管理主机系统的完整容器生命周期，从映像传输和存储到容器执行和监视，再到底层存储、网络附件等等)：
[woods@localhost ~]$ sudo yum install docker-ce
[sudo] woods 的密码：
上次元数据过期检查：0:07:07 前，执行于 2020年05月12日 星期二 10时35分48秒。
错误：
问题: package docker-ce-3:19.03.8-3.el7.x86_64 requires containerd.io >= 1.2.2-3, but none of the providers can be installed
- cannot install the best candidate for the job
- package containerd.io-1.2.10-3.2.el7.x86_64 is excluded
- package containerd.io-1.2.13-3.1.el7.x86_64 is excluded
- package containerd.io-1.2.2-3.3.el7.x86_64 is excluded
- package containerd.io-1.2.2-3.el7.x86_64 is excluded
- package containerd.io-1.2.4-3.1.el7.x86_64 is excluded
- package containerd.io-1.2.5-3.1.el7.x86_64 is excluded
- package containerd.io-1.2.6-3.3.el7.x86_64 is excluded
(尝试添加 '--skip-broken' 来跳过无法安装的软件包 或 '--nobest' 来不只使用最佳选择的软件包)
[woods@localhost ~]$
1.3.1发生containerd.io软件包版本过低的问题,解决方法：
1、安装低版本的docker(1.2可以查看docket的版本) yum -y install docker-ce-18.06.0.ce-3.el7
2、升级 containerd.io软件包（可以到这个网站https://download.docker.com/linux/centos/7/x86_64/stable/Packages/，找到最新的去安装）
[woods@localhost ~]$ sudo dnf install https://download.docker.com/linux/centos/7/x86_64/stable/Packages/containerd.io-1.2.6-3.3.el7.x86_64.rpm
上次元数据过期检查：0:26:58 前，执行于 2020年05月12日 星期二 10时35分48秒。
containerd.io-1.2.6-3.3.el7.x86_64.rpm 154 kB/s | 26 MB 02:51
依赖关系解决。
=======================================================================================
软件包 架构 版本 仓库 大小
=======================================================================================
安装:
containerd.io x86_64 1.2.6-3.3.el7 @commandline 26 M
替换 runc.x86_64 1.0.0-60.rc8.module_el8.1.0+237+63e26edc
事务概要
=======================================================================================
安装 1 软件包
总计：26 M
确定吗？[y/N]： y
下载软件包：
运行事务检查
事务检查成功。
运行事务测试
事务测试成功。
运行事务
准备中 : 1/1
安装 : containerd.io-1.2.6-3.3.el7.x86_64 1/2
运行脚本: containerd.io-1.2.6-3.3.el7.x86_64 1/2
废弃 : runc-1.0.0-60.rc8.module_el8.1.0+237+63e26edc.x86_64 2/2
运行脚本: runc-1.0.0-60.rc8.module_el8.1.0+237+63e26edc.x86_64 2/2
验证 : containerd.io-1.2.6-3.3.el7.x86_64 1/2
验证 : runc-1.0.0-60.rc8.module_el8.1.0+237+63e26edc.x86_64 2/2
已安装:
containerd.io-1.2.6-3.3.el7.x86_64
完毕！
[woods@localhost ~]$
1.3.2发生错误：事务检查错误： 这是因为已经安装了podman，与podman-manpages包冲突
[woods@localhost ~]$ sudo yum install docker-ce docker-ce-cli
CentOS-8 - AppStream 621 B/s | 4.3 kB 00:07
CentOS-8 - Base 1.6 kB/s | 3.9 kB 00:02
CentOS-8 - Extras 2.4 kB/s | 1.5 kB 00:00
Docker CE Stable - x86_64 8.2 kB/s | 3.5 kB 00:00
依赖关系解决。
=======================================================================================
软件包 架构 版本 仓库 大小
=======================================================================================
安装:
docker-ce x86_64 3:19.03.8-3.el7 docker-ce-stable 25 M
docker-ce-cli x86_64 1:19.03.8-3.el7 docker-ce-stable 40 M
安装依赖关系:
libcgroup x86_64 0.41-19.el8 BaseOS 70 k
事务概要
=======================================================================================
安装 3 软件包
总下载：64 M
安装大小：273 M
确定吗？[y/N]： y
下载软件包：
(1/3): libcgroup-0.41-19.el8.x86_64.rpm 398 kB/s | 70 kB 00:00
(2/3): docker-ce-19.03.8-3.el7.x86_64.rpm 392 kB/s | 25 MB 01:04
(3/3): docker-ce-cli-19.03.8-3.el7.x86_64.rpm 554 kB/s | 40 MB 01:13
---------------------------------------------------------------------------------------
总计 880 kB/s | 64 MB 01:14
运行事务检查
事务检查成功。
运行事务测试
下载的软件包保存在缓存中，直到下次成功执行事务。
您可以通过执行 'dnf clean packages' 删除软件包缓存。
错误：事务检查错误：
file /usr/share/man/man1/docker-attach.1.gz from install of docker-ce-cli-1:19.03.8-3.el7.x86_64 conflicts with file from package podman-manpages-1.4.2-5.module_el8.1.0+237+63e26edc.noarch
file /usr/share/man/man1/docker-build.1.gz from install of docker-ce-cli-1:19.03.8-3.el7.x86_64 conflicts with file from package podman-manpages-1.4.2-5.module_el8.1.0+237+63e26edc.noarch
file /usr/share/man/man1/docker-commit.1.gz from install of docker-ce-cli-1:19.03.8-3.el7.x86_64 conflicts with file from package podman-manpages-1.4.2-5.module_el8.1.0+237+63e26edc.noarch
file /usr/share/man/man1/docker-container-prune.1.gz from install of docker-ce-cli-1:19.03.8-3.el7.x86_64 conflicts with file from package podman-manpages-1.4.2-5.module_el8.1.0+237+63e26edc.noarch
file /usr/share/man/man1/docker-container.1.gz from install of docker-ce-cli-1:19.03.8-3.el7.x86_64 conflicts with file from package podman-manpages-1.4.2-5.module_el8.1.0+237+63e26edc.noarch
file /usr/share/man/man1/docker-cp.1.gz from install of docker-ce-cli-1:19.03.8-3.el7.x86_64 conflicts with file from package podman-manpages-1.4.2-5.module_el8.1.0+237+63e26edc.noarch
file /usr/share/man/man1/docker-create.1.gz from install of docker-ce-cli-1:19.03.8-3.el7.x86_64 conflicts with file from package podman-manpages-1.4.2-5.module_el8.1.0+237+63e26edc.noarch
file /usr/share/man/man1/docker-diff.1.gz from install of docker-ce-cli-1:19.03.8-3.el7.x86_64 conflicts with file from package podman-manpages-1.4.2-5.module_el8.1.0+237+63e26edc.noarch
file /usr/share/man/man1/docker-events.1.gz from install of docker-ce-cli-1:19.03.8-3.el7.x86_64 conflicts with file from package podman-manpages-1.4.2-5.module_el8.1.0+237+63e26edc.noarch
file /usr/share/man/man1/docker-exec.1.gz from install of docker-ce-cli-1:19.03.8-3.el7.x86_64 conflicts with file from package podman-manpages-1.4.2-5.module_el8.1.0+237+63e26edc.noarch
file /usr/share/man/man1/docker-export.1.gz from install of docker-ce-cli-1:19.03.8-3.el7.x86_64 conflicts with file from package podman-manpages-1.4.2-5.module_el8.1.0+237+63e26edc.noarch
file /usr/share/man/man1/docker-history.1.gz from install of docker-ce-cli-1:19.03.8-3.el7.x86_64 conflicts with file from package podman-manpages-1.4.2-5.module_el8.1.0+237+63e26edc.noarch
file /usr/share/man/man1/docker-image-prune.1.gz from install of docker-ce-cli-1:19.03.8-3.el7.x86_64 conflicts with file from package podman-manpages-1.4.2-5.module_el8.1.0+237+63e26edc.noarch
file /usr/share/man/man1/docker-image.1.gz from install of docker-ce-cli-1:19.03.8-3.el7.x86_64 conflicts with file from package podman-manpages-1.4.2-5.module_el8.1.0+237+63e26edc.noarch
file /usr/share/man/man1/docker-images.1.gz from install of docker-ce-cli-1:19.03.8-3.el7.x86_64 conflicts with file from package podman-manpages-1.4.2-5.module_el8.1.0+237+63e26edc.noarch
file /usr/share/man/man1/docker-import.1.gz from install of docker-ce-cli-1:19.03.8-3.el7.x86_64 conflicts with file from package podman-manpages-1.4.2-5.module_el8.1.0+237+63e26edc.noarch
file /usr/share/man/man1/docker-info.1.gz from install of docker-ce-cli-1:19.03.8-3.el7.x86_64 conflicts with file from package podman-manpages-1.4.2-5.module_el8.1.0+237+63e26edc.noarch
file /usr/share/man/man1/docker-inspect.1.gz from install of docker-ce-cli-1:19.03.8-3.el7.x86_64 conflicts with file from package podman-manpages-1.4.2-5.module_el8.1.0+237+63e26edc.noarch
file /usr/share/man/man1/docker-kill.1.gz from install of docker-ce-cli-1:19.03.8-3.el7.x86_64 conflicts with file from package podman-manpages-1.4.2-5.module_el8.1.0+237+63e26edc.noarch
file /usr/share/man/man1/docker-load.1.gz from install of docker-ce-cli-1:19.03.8-3.el7.x86_64 conflicts with file from package podman-manpages-1.4.2-5.module_el8.1.0+237+63e26edc.noarch
file /usr/share/man/man1/docker-login.1.gz from install of docker-ce-cli-1:19.03.8-3.el7.x86_64 conflicts with file from package podman-manpages-1.4.2-5.module_el8.1.0+237+63e26edc.noarch
file /usr/share/man/man1/docker-logout.1.gz from install of docker-ce-cli-1:19.03.8-3.el7.x86_64 conflicts with file from package podman-manpages-1.4.2-5.module_el8.1.0+237+63e26edc.noarch
file /usr/share/man/man1/docker-logs.1.gz from install of docker-ce-cli-1:19.03.8-3.el7.x86_64 conflicts with file from package podman-manpages-1.4.2-5.module_el8.1.0+237+63e26edc.noarch
file /usr/share/man/man1/docker-pause.1.gz from install of docker-ce-cli-1:19.03.8-3.el7.x86_64 conflicts with file from package podman-manpages-1.4.2-5.module_el8.1.0+237+63e26edc.noarch
file /usr/share/man/man1/docker-port.1.gz from install of docker-ce-cli-1:19.03.8-3.el7.x86_64 conflicts with file from package podman-manpages-1.4.2-5.module_el8.1.0+237+63e26edc.noarch
file /usr/share/man/man1/docker-ps.1.gz from install of docker-ce-cli-1:19.03.8-3.el7.x86_64 conflicts with file from package podman-manpages-1.4.2-5.module_el8.1.0+237+63e26edc.noarch
file /usr/share/man/man1/docker-pull.1.gz from install of docker-ce-cli-1:19.03.8-3.el7.x86_64 conflicts with file from package podman-manpages-1.4.2-5.module_el8.1.0+237+63e26edc.noarch
file /usr/share/man/man1/docker-push.1.gz from install of docker-ce-cli-1:19.03.8-3.el7.x86_64 conflicts with file from package podman-manpages-1.4.2-5.module_el8.1.0+237+63e26edc.noarch
file /usr/share/man/man1/docker-restart.1.gz from install of docker-ce-cli-1:19.03.8-3.el7.x86_64 conflicts with file from package podman-manpages-1.4.2-5.module_el8.1.0+237+63e26edc.noarch
file /usr/share/man/man1/docker-rm.1.gz from install of docker-ce-cli-1:19.03.8-3.el7.x86_64 conflicts with file from package podman-manpages-1.4.2-5.module_el8.1.0+237+63e26edc.noarch
file /usr/share/man/man1/docker-rmi.1.gz from install of docker-ce-cli-1:19.03.8-3.el7.x86_64 conflicts with file from package podman-manpages-1.4.2-5.module_el8.1.0+237+63e26edc.noarch
file /usr/share/man/man1/docker-run.1.gz from install of docker-ce-cli-1:19.03.8-3.el7.x86_64 conflicts with file from package podman-manpages-1.4.2-5.module_el8.1.0+237+63e26edc.noarch
file /usr/share/man/man1/docker-save.1.gz from install of docker-ce-cli-1:19.03.8-3.el7.x86_64 conflicts with file from package podman-manpages-1.4.2-5.module_el8.1.0+237+63e26edc.noarch
file /usr/share/man/man1/docker-search.1.gz from install of docker-ce-cli-1:19.03.8-3.el7.x86_64 conflicts with file from package podman-manpages-1.4.2-5.module_el8.1.0+237+63e26edc.noarch
file /usr/share/man/man1/docker-start.1.gz from install of docker-ce-cli-1:19.03.8-3.el7.x86_64 conflicts with file from package podman-manpages-1.4.2-5.module_el8.1.0+237+63e26edc.noarch
file /usr/share/man/man1/docker-stats.1.gz from install of docker-ce-cli-1:19.03.8-3.el7.x86_64 conflicts with file from package podman-manpages-1.4.2-5.module_el8.1.0+237+63e26edc.noarch
file /usr/share/man/man1/docker-stop.1.gz from install of docker-ce-cli-1:19.03.8-3.el7.x86_64 conflicts with file from package podman-manpages-1.4.2-5.module_el8.1.0+237+63e26edc.noarch
file /usr/share/man/man1/docker-system-df.1.gz from install of docker-ce-cli-1:19.03.8-3.el7.x86_64 conflicts with file from package podman-manpages-1.4.2-5.module_el8.1.0+237+63e26edc.noarch
file /usr/share/man/man1/docker-system-prune.1.gz from install of docker-ce-cli-1:19.03.8-3.el7.x86_64 conflicts with file from package podman-manpages-1.4.2-5.module_el8.1.0+237+63e26edc.noarch
file /usr/share/man/man1/docker-system.1.gz from install of docker-ce-cli-1:19.03.8-3.el7.x86_64 conflicts with file from package podman-manpages-1.4.2-5.module_el8.1.0+237+63e26edc.noarch
file /usr/share/man/man1/docker-tag.1.gz from install of docker-ce-cli-1:19.03.8-3.el7.x86_64 conflicts with file from package podman-manpages-1.4.2-5.module_el8.1.0+237+63e26edc.noarch
file /usr/share/man/man1/docker-top.1.gz from install of docker-ce-cli-1:19.03.8-3.el7.x86_64 conflicts with file from package podman-manpages-1.4.2-5.module_el8.1.0+237+63e26edc.noarch
file /usr/share/man/man1/docker-unpause.1.gz from install of docker-ce-cli-1:19.03.8-3.el7.x86_64 conflicts with file from package podman-manpages-1.4.2-5.module_el8.1.0+237+63e26edc.noarch
file /usr/share/man/man1/docker-version.1.gz from install of docker-ce-cli-1:19.03.8-3.el7.x86_64 conflicts with file from package podman-manpages-1.4.2-5.module_el8.1.0+237+63e26edc.noarch
file /usr/share/man/man1/docker-volume-create.1.gz from install of docker-ce-cli-1:19.03.8-3.el7.x86_64 conflicts with file from package podman-manpages-1.4.2-5.module_el8.1.0+237+63e26edc.noarch
file /usr/share/man/man1/docker-volume-inspect.1.gz from install of docker-ce-cli-1:19.03.8-3.el7.x86_64 conflicts with file from package podman-manpages-1.4.2-5.module_el8.1.0+237+63e26edc.noarch
file /usr/share/man/man1/docker-volume-ls.1.gz from install of docker-ce-cli-1:19.03.8-3.el7.x86_64 conflicts with file from package podman-manpages-1.4.2-5.module_el8.1.0+237+63e26edc.noarch
file /usr/share/man/man1/docker-volume-prune.1.gz from install of docker-ce-cli-1:19.03.8-3.el7.x86_64 conflicts with file from package podman-manpages-1.4.2-5.module_el8.1.0+237+63e26edc.noarch
file /usr/share/man/man1/docker-volume-rm.1.gz from install of docker-ce-cli-1:19.03.8-3.el7.x86_64 conflicts with file from package podman-manpages-1.4.2-5.module_el8.1.0+237+63e26edc.noarch
file /usr/share/man/man1/docker-volume.1.gz from install of docker-ce-cli-1:19.03.8-3.el7.x86_64 conflicts with file from package podman-manpages-1.4.2-5.module_el8.1.0+237+63e26edc.noarch
file /usr/share/man/man1/docker-wait.1.gz from install of docker-ce-cli-1:19.03.8-3.el7.x86_64 conflicts with file from package podman-manpages-1.4.2-5.module_el8.1.0+237+63e26edc.noarch
file /usr/share/man/man1/docker.1.gz from install of docker-ce-cli-1:19.03.8-3.el7.x86_64 conflicts with file from package podman-manpages-1.4.2-5.module_el8.1.0+237+63e26edc.noarch
[woods@localhost ~]$
解决方法：卸载podman
woods@localhost ~]$ rpm -q podman
podman-1.4.2-5.module_el8.1.0+237+63e26edc.x86_64
[woods@localhost ~]$ sudo dnf remove podman
[sudo] woods 的密码：
模块依赖问题
问题 1: conflicting requests
- nothing provides module(perl:5.26) needed by module perl-DBD-SQLite:1.58:8010020191114033549:073fa5fe-0.x86_64
问题 2: conflicting requests
- nothing provides module(perl:5.26) needed by module perl-DBI:1.641:8010020191113222731:16b3ab4d-0.x86_64
依赖关系解决。
=======================================================================================
软件包 架构 版本 仓库 大小
=======================================================================================
移除:
podman x86_64 1.4.2-5.module_el8.1.0+237+63e26edc @AppStream 51 M
移除依赖的软件包:
cockpit-podman noarch 4-1.module_el8.1.0+237+63e26edc @AppStream 5.1 M
清除未被使用的依赖关系:
libvarlink x86_64 18-3.el8 @anaconda 129 k
oci-systemd-hook x86_64 1:0.1.15-2.git2d0b8a3.module_el8.1.0+237+63e26edc
@AppStream 74 k
podman-manpages noarch 1.4.2-5.module_el8.1.0+237+63e26edc @AppStream 134 k
事务概要
=======================================================================================
移除 5 软件包
将会释放空间：56 M
确定吗？[y/N]： y
运行事务检查
事务检查成功。
运行事务测试
事务测试成功。
运行事务
准备中 : 1/1
运行脚本: cockpit-podman-4-1.module_el8.1.0+237+63e26edc.noarch 1/1
删除 : cockpit-podman-4-1.module_el8.1.0+237+63e26edc.noarch 1/5
删除 : podman-1.4.2-5.module_el8.1.0+237+63e26edc.x86_64 2/5
运行脚本: podman-1.4.2-5.module_el8.1.0+237+63e26edc.x86_64 2/5
删除 : podman-manpages-1.4.2-5.module_el8.1.0+237+63e26edc.noarch 3/5
删除 : oci-systemd-hook-1:0.1.15-2.git2d0b8a3.module_el8.1.0+237+63e26edc.x 4/5
删除 : libvarlink-18-3.el8.x86_64 5/5
运行脚本: libvarlink-18-3.el8.x86_64 5/5
验证 : cockpit-podman-4-1.module_el8.1.0+237+63e26edc.noarch 1/5
验证 : libvarlink-18-3.el8.x86_64 2/5
验证 : oci-systemd-hook-1:0.1.15-2.git2d0b8a3.module_el8.1.0+237+63e26edc.x 3/5
验证 : podman-1.4.2-5.module_el8.1.0+237+63e26edc.x86_64 4/5
验证 : podman-manpages-1.4.2-5.module_el8.1.0+237+63e26edc.noarch 5/5
已移除:
podman-1.4.2-5.module_el8.1.0+237+63e26edc.x86_64
cockpit-podman-4-1.module_el8.1.0+237+63e26edc.noarch
libvarlink-18-3.el8.x86_64
oci-systemd-hook-1:0.1.15-2.git2d0b8a3.module_el8.1.0+237+63e26edc.x86_64
podman-manpages-1.4.2-5.module_el8.1.0+237+63e26edc.noarch
完毕！
[woods@localhost ~]$
1.3.3正常安装docker-ce 和 docker-cli
[woods@localhost ~]$ sudo yum install docker-ce docker-ce-cli -y
上次元数据过期检查：0:19:00 前，执行于 2020年05月12日 星期二 11时30分20秒。
依赖关系解决。
=======================================================================================
软件包 架构 版本 仓库 大小
=======================================================================================
安装:
docker-ce x86_64 3:19.03.8-3.el7 docker-ce-stable 25 M
docker-ce-cli x86_64 1:19.03.8-3.el7 docker-ce-stable 40 M
安装依赖关系:
libcgroup x86_64 0.41-19.el8 BaseOS 70 k
事务概要
=======================================================================================
安装 3 软件包
总计：64 M
安装大小：273 M
下载软件包：
[SKIPPED] libcgroup-0.41-19.el8.x86_64.rpm: Already downloaded
[SKIPPED] docker-ce-19.03.8-3.el7.x86_64.rpm: Already downloaded
[SKIPPED] docker-ce-cli-19.03.8-3.el7.x86_64.rpm: Already downloaded
---------------------------------------------------------------------------------------
总计 6.3 GB/s | 64 MB 00:00
运行事务检查
事务检查成功。
运行事务测试
事务测试成功。
运行事务
准备中 : 1/1
安装 : docker-ce-cli-1:19.03.8-3.el7.x86_64 1/3
运行脚本: docker-ce-cli-1:19.03.8-3.el7.x86_64 1/3
运行脚本: libcgroup-0.41-19.el8.x86_64 2/3
安装 : libcgroup-0.41-19.el8.x86_64 2/3
运行脚本: libcgroup-0.41-19.el8.x86_64 2/3
安装 : docker-ce-3:19.03.8-3.el7.x86_64 3/3
运行脚本: docker-ce-3:19.03.8-3.el7.x86_64 3/3
验证 : libcgroup-0.41-19.el8.x86_64 1/3
验证 : docker-ce-3:19.03.8-3.el7.x86_64 2/3
验证 : docker-ce-cli-1:19.03.8-3.el7.x86_64 3/3
已安装:
docker-ce-3:19.03.8-3.el7.x86_64 docker-ce-cli-1:19.03.8-3.el7.x86_64
libcgroup-0.41-19.el8.x86_64
完毕！
[woods@localhost ~]$
二、启动Docker
2.1、systemctl start docker启动docker,及ps aux |grep docker或systemctl status docker查看进程是否运行
[woods@localhost ~]$ sudo systemctl start docker
[woods@localhost ~]$ ps aux |grep docker
root 37534 0.6 10.1 775144 83240 ? Ssl 11:52 0:00 /usr/bin/dockerd -H fd:// --containerd=/run/containerd/containerd.sock
woods 37667 0.0 0.1 12320 992 pts/0 R+ 11:53 0:00 grep --color=auto docker
[woods@localhost ~]$ systemctl status docker
● docker.service - Docker Application Container Engine
Loaded: loaded (/usr/lib/systemd/system/docker.service; disabled; vendor preset: di>
Active: active (running) since Tue 2020-05-12 11:52:50 EDT; 1min 3s ago
Docs: https://docs.docker.com
Main PID: 37534 (dockerd)
Tasks: 8
Memory: 91.6M
CGroup: /system.slice/docker.service
└─37534 /usr/bin/dockerd -H fd:// --containerd=/run/containerd/containerd.s>
lines 1-9/9 (END)
2.2、systemctl enable docker设置开机自启动docker
[woods@localhost ~]$ systemctl enable docker
Created symlink /etc/systemd/system/multi-user.target.wants/docker.service → /usr/lib/systemd/system/docker.service.
[woods@localhost ~]$ systemctl status docker
● docker.service - Docker Application Container Engine
Loaded: loaded (/usr/lib/systemd/system/docker.service; enabled; vendor preset: dis>
Active: active (running) since Tue 2020-05-12 11:52:50 EDT; 12min ago
Docs: https://docs.docker.com
Main PID: 37534 (dockerd)
Tasks: 8
Memory: 43.4M
CGroup: /system.slice/docker.service
└─37534 /usr/bin/dockerd -H fd:// --containerd=/run/containerd/containerd.s>
lines 1-9/9 (END)
2.3、确认docker版本
[woods@localhost ~]$ docker version
Client: Docker Engine - Community
Version: 19.03.8
API version: 1.40
Go version: go1.12.17
Git commit: afacb8b
Built: Wed Mar 11 01:27:04 2020
OS/Arch: linux/amd64
Experimental: false
Got permission denied while trying to connect to the Docker daemon socket at unix:///var/run/docker.sock: Get http://%2Fvar%2Frun%2Fdocker.sock/v1.40/version: dial unix /var/run/docker.sock: connect: permission denied
[woods@localhost ~]$
2.3.1免sudo使用docker
[woods@localhost ~]$ sudo groupadd docker //添加一个docker属组（如果没有）
[sudo] woods 的密码：
groupadd：“docker”组已存在
[woods@localhost ~]$ sudo gpasswd -a ${USER} docker //将用户加入该group中，退出并重新登陆
正在将用户“woods”加入到“docker”组中
[woods@localhost ~]$ exit
从新登录（打开终端）
[woods@localhost ~]$ sudo service docker restart //重启docker服务
[sudo] woods 的密码：
Redirecting to /bin/systemctl restart docker.service
[woods@localhost ~]$ newgrp - docker //切换当前会话到新group或重启会话
[woods@localhost ~]$ docker version
Client: Docker Engine - Community
Version: 19.03.8
API version: 1.40
Go version: go1.12.17
Git commit: afacb8b
Built: Wed Mar 11 01:27:04 2020
OS/Arch: linux/amd64
Experimental: false
Server: Docker Engine - Community
Engine:
Version: 19.03.8
API version: 1.40 (minimum version 1.12)
Go version: go1.12.17
Git commit: afacb8b
Built: Wed Mar 11 01:25:42 2020
OS/Arch: linux/amd64
Experimental: false
containerd:
Version: 1.2.6
GitCommit: 894b81a4b802e4eb2a91d1ce216b8817763c29fb
runc:
Version: 1.0.0-rc8
GitCommit: 425e105d5a03fabd737a126ad93d62a9eeede87f
docker-init:
Version: 0.18.0
GitCommit: fec3683
[woods@localhost ~]$
三、安装Docker-compose
利用pip3直接安装
[woods@localhost ~]$ sudo pip3 install docker-compose
WARNING: Running pip install with root privileges is generally not a good idea. Try `pip3 install --user` instead.
……
Installing collected packages: dockerpty, cached-property, pyrsistent, attrs, zipp, importlib-metadata, jsonschema, websocket-client, pynacl, cryptography, bcrypt, paramiko, docker, texttable, docopt, docker-compose
Running setup.py install for dockerpty ... done
Running setup.py install for pyrsistent ... done
Running setup.py install for docopt ... done
Successfully installed attrs-19.3.0 bcrypt-3.1.7 cached-property-1.5.1 cryptography-2.9.2 docker-4.2.0 docker-compose-1.25.5 dockerpty-0.4.1 docopt-0.6.2 importlib-metadata-1.6.0 jsonschema-3.2.0 paramiko-2.7.1 pynacl-1.3.0 pyrsistent-0.16.0 texttable-1.6.2 websocket-client-0.57.0 zipp-3.1.0
[woods@localhost ~]$ docker-compose version
docker-compose version 1.25.5, build unknown
docker-py version: 4.2.0
CPython version: 3.6.8
OpenSSL version: OpenSSL 1.1.1c FIPS 28 May 2019
[woods@localhost ~]$
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