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Linux 7.7 安装 Docker

2020-03-28 22:02 2827 0 原创 Docker
作者： dave
本文链接：http://www.cndba.cn/cndba/dave/article/4100

1 环境说明

本片博客演示Redhat 7.7 平台下Docker 的安装。

操作系统信息如下：

[root@www.cndba.cn sysconfig]# cat /etc/redhat-release
Red Hat Enterprise Linux Server release 7.7 (Maipo)
[root@www.cndba.cn sysconfig]#


[root@www.cndba.cn ~]# df -lh
Filesystem             Size  Used Avail Use% Mounted on
devtmpfs               2.8G     0  2.8G   0% /dev
tmpfs                  2.8G     0  2.8G   0% /dev/shm
tmpfs                  2.8G   13M  2.8G   1% /run
tmpfs                  2.8G     0  2.8G   0% /sys/fs/cgroup
/dev/mapper/rhel-root   46G   22G   24G  49% /
/dev/sda1             1014M  182M  833M  18% /boot
tmpfs                  565M  4.0K  565M   1% /run/user/42
tmpfs                  565M   56K  565M   1% /run/user/0
/dev/sr0               4.2G  4.2G     0 100% /run/media/root/RHEL-7.7 Server.x86_64
[root@www.cndba.cn ~]#

2 安装Docker

Docker的官方文档有详细的安装说明，链接如下：

https://docs.docker.com/install/linux/docker-ce/centos/http://www.cndba.cn/cndba/dave/article/4100

我们这里只需要看CentOS平台的安装。

2.1 安装依赖包

这里需要先配置好YUM。 具体操作参考我之前的博客：

Linux 平台下 yum 源 配置 手册
https://www.cndba.cn/dave/article/154

安装依赖包：

[root@www.cndba.cn ~]# yum install -y yum-utils device-mapper-persistent-data lvm2
Loaded plugins: langpacks, product-id, search-disabled-repos, subscription-manager
This system is not registered with an entitlement server. You can use subscription-manager to register.
www.cndba.cn                                                                            | 2.8 kB  00:00:00
(1/2): www.cndba.cn/group_gz                                                            | 103 kB  00:00:00
(2/2): www.cndba.cn/primary                                                             | 2.0 MB  00:00:00
www.cndba.cn                                                                                         5229/5229
Package yum-utils-1.1.31-52.el7.noarch already installed and latest version
Package device-mapper-persistent-data-0.8.5-1.el7.x86_64 already installed and latest version
Package 7:lvm2-2.02.185-2.el7.x86_64 already installed and latest version
Nothing to do
[root@www.cndba.cn ~]#

我这里已经安装过了，所以忽略了更新。http://www.cndba.cn/cndba/dave/article/4100

2.2 添加docker repository

配置docker源：

http://www.cndba.cn/cndba/dave/article/4100 

[root@www.cndba.cn ~]# yum-config-manager  --add-repo https://download.docker.com/linux/centos/docker-ce.repo
Loaded plugins: langpacks, product-id, subscription-manager
This system is not registered with an entitlement server. You can use subscription-manager to register.
adding repo from: https://download.docker.com/linux/centos/docker-ce.repo
grabbing file https://download.docker.com/linux/centos/docker-ce.repo to /etc/yum.repos.d/docker-ce.repo
repo saved to /etc/yum.repos.d/docker-ce.repo

[root@www.cndba.cn ~]# cat /etc/yum.repos.d/docker-ce.repo
[docker-ce-stable]
name=Docker CE Stable - $basearch
baseurl=https://download.docker.com/linux/centos/7/$basearch/stable
enabled=1
gpgcheck=1
gpgkey=https://download.docker.com/linux/centos/gpg

[docker-ce-stable-debuginfo]
name=Docker CE Stable - Debuginfo $basearch
baseurl=https://download.docker.com/linux/centos/7/debug-$basearch/stable
enabled=0
gpgcheck=1
gpgkey=https://download.docker.com/linux/centos/gpg

[docker-ce-stable-source]
name=Docker CE Stable - Sources
baseurl=https://download.docker.com/linux/centos/7/source/stable
enabled=0
gpgcheck=1
gpgkey=https://download.docker.com/linux/centos/gpg

[docker-ce-edge]
name=Docker CE Edge - $basearch
baseurl=https://download.docker.com/linux/centos/7/$basearch/edge
enabled=0
gpgcheck=1
gpgkey=https://download.docker.com/linux/centos/gpg

[docker-ce-edge-debuginfo]
name=Docker CE Edge - Debuginfo $basearch
baseurl=https://download.docker.com/linux/centos/7/debug-$basearch/edge
enabled=0
gpgcheck=1
gpgkey=https://download.docker.com/linux/centos/gpg

[docker-ce-edge-source]
name=Docker CE Edge - Sources
baseurl=https://download.docker.com/linux/centos/7/source/edge
enabled=0
gpgcheck=1
gpgkey=https://download.docker.com/linux/centos/gpg

[docker-ce-test]
name=Docker CE Test - $basearch
baseurl=https://download.docker.com/linux/centos/7/$basearch/test
enabled=0
gpgcheck=1
gpgkey=https://download.docker.com/linux/centos/gpg

[docker-ce-test-debuginfo]
name=Docker CE Test - Debuginfo $basearch
baseurl=https://download.docker.com/linux/centos/7/debug-$basearch/test
enabled=0
gpgcheck=1
gpgkey=https://download.docker.com/linux/centos/gpg

[docker-ce-test-source]
name=Docker CE Test - Sources
baseurl=https://download.docker.com/linux/centos/7/source/test
enabled=0
gpgcheck=1
gpgkey=https://download.docker.com/linux/centos/gpg

[docker-ce-nightly]
name=Docker CE Nightly - $basearch
baseurl=https://download.docker.com/linux/centos/7/$basearch/nightly
enabled=0
gpgcheck=1
gpgkey=https://download.docker.com/linux/centos/gpg

[docker-ce-nightly-debuginfo]
name=Docker CE Nightly - Debuginfo $basearch
baseurl=https://download.docker.com/linux/centos/7/debug-$basearch/nightly
enabled=0
gpgcheck=1
gpgkey=https://download.docker.com/linux/centos/gpg

[docker-ce-nightly-source]
name=Docker CE Nightly - Sources
baseurl=https://download.docker.com/linux/centos/7/source/nightly
enabled=0
gpgcheck=1
gpgkey=https://download.docker.com/linux/centos/gpg
[root@www.cndba.cn ~]#

在官方手册里还有一些其他的源，我这里不再安装。

http://www.cndba.cn/cndba/dave/article/4100
http://www.cndba.cn/cndba/dave/article/4100

2.3 安装Docker 引擎

按顺序列出docker 源中可用的docker 引擎：

http://www.cndba.cn/cndba/dave/article/4100 

[root@www.cndba.cn ~]# yum list docker-ce --showduplicates | sort -r
This system is not registered with an entitlement server. You can use subscription-manager to register.
              : manager
Loaded plugins: langpacks, product-id, search-disabled-repos, subscription-
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
Available Packages
[root@www.cndba.cn ~]#

如果安装最新版的docker引擎，执行如下命令：

yum install docker-ce docker-ce-cli containerd.io

如果安装特定版本，指定docker版本：

yum install -y docker-ce-17.12.1 docker-ce-cli-17.12.1 containerd.io

我们这里制定版本安装报错如下：

[root@www.cndba.cn ~]# yum install -y docker-ce-19.03.8 docker-ce-cli-19.03.8 containerd.io
Loaded plugins: langpacks, product-id, search-disabled-repos, subscription-manager
This system is not registered with an entitlement server. You can use subscription-manager to register.
Resolving Dependencies
--> Running transaction check
---> Package containerd.io.x86_64 0:1.2.13-3.1.el7 will be installed
--> Processing Dependency: container-selinux >= 2:2.74 for package: containerd.io-1.2.13-3.1.el7.x86_64
---> Package docker-ce.x86_64 3:19.03.8-3.el7 will be installed
--> Processing Dependency: container-selinux >= 2:2.74 for package: 3:docker-ce-19.03.8-3.el7.x86_64
---> Package docker-ce-cli.x86_64 1:19.03.8-3.el7 will be installed
--> Finished Dependency Resolution
Error: Package: 3:docker-ce-19.03.8-3.el7.x86_64 (docker-ce-stable)
           Requires: container-selinux >= 2:2.74
Error: Package: containerd.io-1.2.13-3.1.el7.x86_64 (docker-ce-stable)
           Requires: container-selinux >= 2:2.74
 You could try using --skip-broken to work around the problem
 You could try running: rpm -Va --nofiles --nodigest
[root@www.cndba.cn ~]#

这里提示我们需要先安装container-selinux 。http://www.cndba.cn/cndba/dave/article/4100

[root@www.cndba.cn ~]# wget http://mirror.centos.org/centos/7/extras/x86_64/Packages/container-selinux-2.107-3.el7.noarch.rpm
--2020-03-28 21:01:46--  http://mirror.centos.org/centos/7/extras/x86_64/Packages/container-selinux-2.107-3.el7.noarch.rpm
Resolving mirror.centos.org (mirror.centos.org)... 111.90.139.14, 2401:78c0::e00e
Connecting to mirror.centos.org (mirror.centos.org)|111.90.139.14|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 40212 (39K) [application/x-rpm]
Saving to: ‘container-selinux-2.107-3.el7.noarch.rpm’

100%[=====================================================================>] 40,212      6.79KB/s   in 5.8s

2020-03-28 21:01:53 (6.79 KB/s) - ‘container-selinux-2.107-3.el7.noarch.rpm’ saved [40212/40212]

[root@www.cndba.cn ~]# rpm -ivh container-selinux-2.107-3.el7.noarch.rpm
warning: container-selinux-2.107-3.el7.noarch.rpm: Header V3 RSA/SHA256 Signature, key ID f4a80eb5: NOKEY
Preparing...                          ################################# [100%]
Updating / installing...
   1:container-selinux-2:2.107-3.el7  ################################# [100%]
setsebool:  SELinux is disabled.
[root@www.cndba.cn ~]#

再次安装docker：http://www.cndba.cn/cndba/dave/article/4100

[root@www.cndba.cn ~]# yum install -y docker-ce-19.03.8 docker-ce-cli-19.03.8 containerd.io
Loaded plugins: langpacks, product-id, search-disabled-repos, subscription-manager
This system is not registered with an entitlement server. You can use subscription-manager to register.
Resolving Dependencies
--> Running transaction check
---> Package containerd.io.x86_64 0:1.2.13-3.1.el7 will be installed
---> Package docker-ce.x86_64 3:19.03.8-3.el7 will be installed
---> Package docker-ce-cli.x86_64 1:19.03.8-3.el7 will be installed
--> Finished Dependency Resolution

Dependencies Resolved

===============================================================================================================
 Package                   Arch               Version                       Repository                    Size
===============================================================================================================
Installing:
 containerd.io             x86_64             1.2.13-3.1.el7                docker-ce-stable              23 M
 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

Transaction Summary
===============================================================================================================
Install  3 Packages

Total download size: 87 M
Installed size: 363 M
Downloading packages:
warning: /var/cache/yum/x86_64/7Server/docker-ce-stable/packages/containerd.io-1.2.13-3.1.el7.x86_64.rpm: Header V4 RSA/SHA512 Signature, key ID 621e9f35: NOKEY
Public key for containerd.io-1.2.13-3.1.el7.x86_64.rpm is not installed
(1/3): containerd.io-1.2.13-3.1.el7.x86_64.rpm                                          |  23 MB  00:01:42
(2/3): docker-ce-cli-19.03.8-3.el7.x86_64.rpm                                           |  40 MB  00:03:05
(3/3): docker-ce-19.03.8-3.el7.x86_64.rpm                                               |  25 MB  00:18:33
---------------------------------------------------------------------------------------------------------------
Total                                                                           80 kB/s |  87 MB  00:18:33
Retrieving key from https://download.docker.com/linux/centos/gpg
Importing GPG key 0x621E9F35:
 Userid     : "Docker Release (CE rpm) <docker@docker.com>"
 Fingerprint: 060a 61c5 1b55 8a7f 742b 77aa c52f eb6b 621e 9f35
 From       : https://download.docker.com/linux/centos/gpg
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
Warning: RPMDB altered outside of yum.
  Installing : 1:docker-ce-cli-19.03.8-3.el7.x86_64                                                        1/3
  Installing : containerd.io-1.2.13-3.1.el7.x86_64                                                         2/3
  Installing : 3:docker-ce-19.03.8-3.el7.x86_64                                                            3/3
  Verifying  : containerd.io-1.2.13-3.1.el7.x86_64                                                         1/3
  Verifying  : 1:docker-ce-cli-19.03.8-3.el7.x86_64                                                        2/3
  Verifying  : 3:docker-ce-19.03.8-3.el7.x86_64                                                            3/3

Installed:
  containerd.io.x86_64 0:1.2.13-3.1.el7 docker-ce.x86_64 3:19.03.8-3.el7 docker-ce-cli.x86_64 1:19.03.8-3.el7

Complete!
[root@www.cndba.cn ~]#

2.4 启动docker

设置docker为开机自动启动

[root@www.cndba.cn ~]# systemctl enable docker
Created symlink from /etc/systemd/system/multi-user.target.wants/docker.service to /usr/lib/systemd/system/docker.service.

开启docker服务

http://www.cndba.cn/cndba/dave/article/4100

[root@www.cndba.cn ~]# systemctl start docker

查看docker服务版本http://www.cndba.cn/cndba/dave/article/4100

[root@www.cndba.cn ~]# 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:          1.2.13
  GitCommit:        7ad184331fa3e55e52b890ea95e65ba581ae3429
 runc:
  Version:          1.0.0-rc10
  GitCommit:        dc9208a3303feef5b3839f4323d9beb36df0a9dd
 docker-init:
  Version:          0.18.0
  GitCommit:        fec3683
[root@www.cndba.cn ~]#

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dave

dave

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人的一生应该是这样度过的：当他回首往事的时候，他不会因为虚度年华而悔恨，也不会因为碌碌无为而羞耻；这样，在临死的时候，他就能够说：“我的整个生命和全部精力，都已经献给世界上最壮丽的事业....."

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