1、检查一下yum命令
[root@localhost ~]# yum
Loaded plugins: fastestmirror, langpacks
You need to give some command
Usage: yum [options] COMMAND
List of Commands:
check Check for problems in the rpmdb
check-update Check for available package updates
clean Remove cached data
deplist List a package's dependencies
distribution-synchronization Synchronize installed packages to the latest available versions
downgrade downgrade a package
erase Remove a package or packages from your system
fs Acts on the filesystem data of the host, mainly for removing docs/lanuages for minimal hosts.
fssnapshot Creates filesystem snapshots, or lists/deletes current snapshots.
groups Display, or use, the groups information
help Display a helpful usage message
history Display, or use, the transaction history
info Display details about a package or group of packages
install Install a package or packages on your system
langavailable Check available languages
langinfo List languages information
langinstall Install appropriate language packs for a language
langlist List installed languages
langremove Remove installed language packs for a language
list List a package or groups of packages
load-transaction load a saved transaction from filename
makecache Generate the metadata cache
provides Find what package provides the given value
reinstall reinstall a package
repo-pkgs Treat a repo. as a group of packages, so we can install/remove all of them
repolist Display the configured software repositories
search Search package details for the given string
shell Run an interactive yum shell
swap Simple way to swap packages, instead of using shell
update Update a package or packages on your system
update-minimal Works like upgrade, but goes to the 'newest' package match which fixes a problem that affects your system
updateinfo Acts on repository update information
upgrade Update packages taking obsoletes into account
version Display a version for the machine and/or available repos.
Options:
-h, --help show this help message and exit
-t, --tolerant be tolerant of errors
-C, --cacheonly run entirely from system cache, don't update cache
-c [config file], --config=[config file]
config file location
-R [minutes], --randomwait=[minutes]
maximum command wait time
-d [debug level], --debuglevel=[debug level]
debugging output level
--showduplicates show duplicates, in repos, in list/search commands
-e [error level], --errorlevel=[error level]
error output level
--rpmverbosity=[debug level name]
debugging output level for rpm
-q, --quiet quiet operation
-v, --verbose verbose operation
-y, --assumeyes answer yes for all questions
--assumeno answer no for all questions
--version show Yum version and exit
--installroot=[path] set install root
--enablerepo=[repo] enable one or more repositories (wildcards allowed)
--disablerepo=[repo] disable one or more repositories (wildcards allowed)
-x [package], --exclude=[package]
exclude package(s) by name or glob
--disableexcludes=[repo]
disable exclude from main, for a repo or for
everything
--disableincludes=[repo]
disable includepkgs for a repo or for everything
--obsoletes enable obsoletes processing during updates
--noplugins disable Yum plugins
--nogpgcheck disable gpg signature checking
--disableplugin=[plugin]
disable plugins by name
--enableplugin=[plugin]
enable plugins by name
--skip-broken skip packages with depsolving problems
--color=COLOR control whether color is used
--releasever=RELEASEVER
set value of $releasever in yum config and repo files
--downloadonly don't update, just download
--downloaddir=DLDIR specifies an alternate directory to store packages
--setopt=SETOPTS set arbitrary config and repo options
--bugfix Include bugfix relevant packages, in updates
--security Include security relevant packages, in updates
--advisory=ADVS, --advisories=ADVS
Include packages needed to fix the given advisory, in
updates
--bzs=BZS Include packages needed to fix the given BZ, in
updates
--cves=CVES Include packages needed to fix the given CVE, in
updates
--sec-severity=SEVS, --secseverity=SEVS
Include security relevant packages matching the
severity, in updates
Plugin Options:
You have mail in /var/spool/mail/root
2、在安装docker之前，如果这台机器之前安装过docker,那么首先使用yum -y remove docker命令移除系统中已有的旧版本的docker
[root@localhost ~]# yum -y remove docker
Loaded plugins: fastestmirror, langpacks
No Match for argument: docker
No Packages marked for removal
[root@localhost ~]#
3、安装yum-utils管理yum源
1）安装yum-utils
[root@localhost ~]# yum install -y yum-utils
Loaded plugins: fastestmirror, langpacks
Loading mirror speeds from cached hostfile
* base: ftp.sjtu.edu.cn
* extras: mirrors.njupt.edu.cn
* updates: ftp.sjtu.edu.cn
base | 3.6 kB 00:00:00
extras | 2.9 kB 00:00:00
updates | 2.9 kB 00:00:00
(1/4): base/7/x86_64/group_gz | 153 kB 00:00:00
(2/4): extras/7/x86_64/primary_db | 243 kB 00:00:00
(3/4): updates/7/x86_64/primary_db | 12 MB 00:00:02
(4/4): base/7/x86_64/primary_db | 6.1 MB 00:00:02
Package yum-utils-1.1.31-54.el7_8.noarch already installed and latest version
Nothing to do
2）新增yum源
##官网地址
yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo
##阿里云地址(推荐)
yum-config-manager --add-repo http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo
[root@localhost ~]# yum-config-manager --add-repo http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo
Loaded plugins: fastestmirror, langpacks
adding repo from: http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo
grabbing file http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo to /etc/yum.repos.d/docker-ce.repo
repo saved to /etc/yum.repos.d/docker-ce.repo
4、建立元数据缓存yum makecache fast
[root@localhost ~]# yum makecache fast
Loaded plugins: fastestmirror, langpacks
Loading mirror speeds from cached hostfile
* base: ftp.sjtu.edu.cn
* extras: mirrors.njupt.edu.cn
* updates: ftp.sjtu.edu.cn
base
| 3.6 kB 00:00:00
docker-ce-stable
| 3.5 kB 00:00:00
extras
| 2.9 kB 00:00:00
updates
| 2.9 kB 00:00:00
(1/2):
docker-ce-stable/7/x86_64/updateinfo
| 55 B 00:00:00
(2/2):
docker-ce-stable/7/x86_64/primary_db
| 69 kB 00:00:00
Metadata Cache Created
5、安装最新版本的docker ：yum -y install docker-ce
[root@localhost ~]# yum -y install docker-ce
Loaded plugins: fastestmirror, langpacks
Loading mirror speeds from cached hostfile
* base: ftp.sjtu.edu.cn
* extras: mirrors.ustc.edu.cn
* updates: ftp.sjtu.edu.cn
Resolving Dependencies
--> Running transaction check
---> Package docker-ce.x86_64 3:20.10.11-3.el7 will be installed
--> Processing Dependency: container-selinux >= 2:2.74 for package: 3:docker-ce-20.10.11-3.el7.x86_64
--> Processing Dependency: containerd.io >= 1.4.1 for package: 3:docker-ce-20.10.11-3.el7.x86_64
--> Processing Dependency: docker-ce-cli for package: 3:docker-ce-20.10.11-3.el7.x86_64
--> Processing Dependency: docker-ce-rootless-extras for package: 3:docker-ce-20.10.11-3.el7.x86_64
--> Running transaction check
---> Package container-selinux.noarch 2:2.119.2-1.911c772.el7_8 will be installed
---> Package containerd.io.x86_64 0:1.4.12-3.1.el7 will be installed
---> Package docker-ce-cli.x86_64 1:20.10.11-3.el7 will be installed
--> Processing Dependency: docker-scan-plugin(x86-64) for package: 1:docker-ce-cli-20.10.11-3.el7.x86_64
---> Package docker-ce-rootless-extras.x86_64 0:20.10.11-3.el7 will be installed
--> Processing Dependency: fuse-overlayfs >= 0.7 for package: docker-ce-rootless-extras-20.10.11-3.el7.x86_64
--> Processing Dependency: slirp4netns >= 0.4 for package: docker-ce-rootless-extras-20.10.11-3.el7.x86_64
--> Running transaction check
---> Package docker-scan-plugin.x86_64 0:0.9.0-3.el7 will be installed
---> Package fuse-overlayfs.x86_64 0:0.7.2-6.el7_8 will be installed
--> Processing Dependency: libfuse3.so.3(FUSE_3.2)(64bit) for package: fuse-overlayfs-0.7.2-6.el7_8.x86_64
--> Processing Dependency: libfuse3.so.3(FUSE_3.0)(64bit) for package: fuse-overlayfs-0.7.2-6.el7_8.x86_64
--> Processing Dependency: libfuse3.so.3()(64bit) for package: fuse-overlayfs-0.7.2-6.el7_8.x86_64
---> Package slirp4netns.x86_64 0:0.4.3-4.el7_8 will be installed
--> Running transaction check
---> Package fuse3-libs.x86_64 0:3.6.1-4.el7 will be installed
--> Finished Dependency Resolution
Dependencies Resolved
=======================================================================================================================================================================================================================================================================
Package Arch Version Repository Size
=======================================================================================================================================================================================================================================================================
Installing:
docker-ce x86_64 3:20.10.11-3.el7 docker-ce-stable 23 M
Installing for dependencies:
container-selinux noarch 2:2.119.2-1.911c772.el7_8 extras 40 k
containerd.io x86_64 1.4.12-3.1.el7 docker-ce-stable 28 M
docker-ce-cli x86_64 1:20.10.11-3.el7 docker-ce-stable 29 M
docker-ce-rootless-extras x86_64 20.10.11-3.el7 docker-ce-stable 8.0 M
docker-scan-plugin x86_64 0.9.0-3.el7 docker-ce-stable 3.7 M
fuse-overlayfs x86_64 0.7.2-6.el7_8 extras 54 k
fuse3-libs x86_64 3.6.1-4.el7 extras 82 k
slirp4netns x86_64 0.4.3-4.el7_8 extras 81 k
Transaction Summary
=======================================================================================================================================================================================================================================================================
Install 1 Package (+8 Dependent packages)
Total download size: 93 M
Installed size: 376 M
Downloading packages:
warning: /var/cache/yum/x86_64/7/extras/packages/container-selinux-2.119.2-1.911c772.el7_8.noarch.rpm: Header V3 RSA/SHA256 Signature, key ID f4a80eb5: NOKEY
Public key for container-selinux-2.119.2-1.911c772.el7_8.noarch.rpm is not installed
(1/9): container-selinux-2.119.2-1.911c772.el7_8.noarch.rpm | 40 kB 00:00:00
warning: /var/cache/yum/x86_64/7/docker-ce-stable/packages/containerd.io-1.4.12-3.1.el7.x86_64.rpm: Header V4 RSA/SHA512 Signature, key ID 621e9f35: NOKEY====================== ] 6.8 MB/s | 47 MB 00:00:06 ETA
Public key for containerd.io-1.4.12-3.1.el7.x86_64.rpm is not installed
(2/9): containerd.io-1.4.12-3.1.el7.x86_64.rpm | 28 MB 00:00:05
(3/9): docker-ce-20.10.11-3.el7.x86_64.rpm | 23 MB 00:00:05
(4/9): docker-ce-rootless-extras-20.10.11-3.el7.x86_64.rpm | 8.0 MB 00:00:02
(5/9): slirp4netns-0.4.3-4.el7_8.x86_64.rpm | 81 kB 00:00:00
(6/9): fuse-overlayfs-0.7.2-6.el7_8.x86_64.rpm | 54 kB 00:00:00
(7/9): fuse3-libs-3.6.1-4.el7.x86_64.rpm | 82 kB 00:00:00
(8/9): docker-scan-plugin-0.9.0-3.el7.x86_64.rpm | 3.7 MB 00:00:01
(9/9): docker-ce-cli-20.10.11-3.el7.x86_64.rpm | 29 MB 00:00:07
-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Total 6.8 MB/s | 93 MB 00:00:13
Retrieving key from https://mirrors.aliyun.com/docker-ce/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://mirrors.aliyun.com/docker-ce/linux/centos/gpg
Retrieving key from file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7
Importing GPG key 0xF4A80EB5:
Userid : "CentOS-7 Key (CentOS 7 Official Signing Key) <security@centos.org>"
Fingerprint: 6341 ab27 53d7 8a78 a7c2 7bb1 24c6 a8a7 f4a8 0eb5
Package : centos-release-7-9.2009.0.el7.centos.x86_64 (@anaconda)
From : /etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
Installing : docker-scan-plugin-0.9.0-3.el7.x86_64 1/9
Installing : 1:docker-ce-cli-20.10.11-3.el7.x86_64 2/9
Installing : 2:container-selinux-2.119.2-1.911c772.el7_8.noarch 3/9
Installing : containerd.io-1.4.12-3.1.el7.x86_64 4/9
Installing : slirp4netns-0.4.3-4.el7_8.x86_64 5/9
Installing : fuse3-libs-3.6.1-4.el7.x86_64 6/9
Installing : fuse-overlayfs-0.7.2-6.el7_8.x86_64 7/9
Installing : docker-ce-rootless-extras-20.10.11-3.el7.x86_64 8/9
Installing : 3:docker-ce-20.10.11-3.el7.x86_64 9/9
Verifying : 1:docker-ce-cli-20.10.11-3.el7.x86_64 1/9
Verifying : docker-scan-plugin-0.9.0-3.el7.x86_64 2/9
Verifying : fuse3-libs-3.6.1-4.el7.x86_64 3/9
Verifying : fuse-overlayfs-0.7.2-6.el7_8.x86_64 4/9
Verifying : slirp4netns-0.4.3-4.el7_8.x86_64 5/9
Verifying : 2:container-selinux-2.119.2-1.911c772.el7_8.noarch 6/9
Verifying : 3:docker-ce-20.10.11-3.el7.x86_64 7/9
Verifying : docker-ce-rootless-extras-20.10.11-3.el7.x86_64 8/9
Verifying : containerd.io-1.4.12-3.1.el7.x86_64 9/9
Installed:
docker-ce.x86_64 3:20.10.11-3.el7
Dependency Installed:
container-selinux.noarch 2:2.119.2-1.911c772.el7_8 containerd.io.x86_64 0:1.4.12-3.1.el7 docker-ce-cli.x86_64 1:20.10.11-3.el7 docker-ce-rootless-extras.x86_64 0:20.10.11-3.el7 docker-scan-plugin.x86_64 0:0.9.0-3.el7 fuse-overlayfs.x86_64 0:0.7.2-6.el7_8
fuse3-libs.x86_64 0:3.6.1-4.el7 slirp4netns.x86_64 0:0.4.3-4.el7_8
Complete!
***也可以使用yum list docker-ce.x86_64 --showduplicates | sort -r命令列出可用的docker版本；
[root@localhost ~]# yum list docker-ce.x86_64 --showduplicates | sort -r
* updates: mirrors.163.com
Loading mirror speeds from cached hostfile
Loaded plugins: fastestmirror, langpacks
Installed Packages
* extras: mirrors.ustc.edu.cn
docker-ce.x86_64 3:20.10.9-3.el7 docker-ce-stable
docker-ce.x86_64 3:20.10.8-3.el7 docker-ce-stable
docker-ce.x86_64 3:20.10.7-3.el7 docker-ce-stable
docker-ce.x86_64 3:20.10.6-3.el7 docker-ce-stable
docker-ce.x86_64 3:20.10.5-3.el7 docker-ce-stable
docker-ce.x86_64 3:20.10.4-3.el7 docker-ce-stable
docker-ce.x86_64 3:20.10.3-3.el7 docker-ce-stable
docker-ce.x86_64 3:20.10.2-3.el7 docker-ce-stable
docker-ce.x86_64 3:20.10.1-3.el7 docker-ce-stable
docker-ce.x86_64 3:20.10.11-3.el7 docker-ce-stable
docker-ce.x86_64 3:20.10.11-3.el7 @docker-ce-stable
docker-ce.x86_64 3:20.10.10-3.el7 docker-ce-stable
docker-ce.x86_64 3:20.10.0-3.el7 docker-ce-stable
docker-ce.x86_64 3:19.03.9-3.el7 docker-ce-stable
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 3:19.03.15-3.el7 docker-ce-stable
docker-ce.x86_64 3:19.03.14-3.el7 docker-ce-stable
docker-ce.x86_64 3:19.03.1-3.el7 docker-ce-stable
docker-ce.x86_64 3:19.03.13-3.el7 docker-ce-stable
docker-ce.x86_64 3:19.03.12-3.el7 docker-ce-stable
docker-ce.x86_64 3:19.03.11-3.el7 docker-ce-stable
docker-ce.x86_64 3:19.03.10-3.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
* base: mirrors.163.com
Available Packages
**使用yum -y install docker-ce-version来安装某一指定版本的docker；
6、启动docker： systemctl start docker
[root@localhost ~]# systemctl start docker
7、验证docker是否安装成功：docker run hello-world
[root@localhost ~]# docker run hello-world
Unable to find image 'hello-world:latest' locally
latest: Pulling from library/hello-world
2db29710123e: Pull complete
Digest: sha256:cc15c5b292d8525effc0f89cb299f1804f3a725c8d05e158653a563f15e4f685
Status: Downloaded newer image for hello-world:latest
Hello from Docker!
This message shows that your installation appears to be working correctly.
To generate this message, Docker took the following steps:
1. The Docker client contacted the Docker daemon.
2. The Docker daemon pulled the "hello-world" image from the Docker Hub.
(amd64)
3. The Docker daemon created a new container from that image which runs the
executable that produces the output you are currently reading.
4. The Docker daemon streamed that output to the Docker client, which sent it
to your terminal.
To try something more ambitious, you can run an Ubuntu container with:
$ docker run -it ubuntu bash
Share images, automate workflows, and more with a free Docker ID:
https://hub.docker.com/
For more examples and ideas, visit:
https://docs.docker.com/get-started/
出现如上所示，则证明安装成功；
8、查看docker版本信息：docker version
[root@localhost ~]# docker version
Client: Docker Engine - Community
Version: 20.10.11
API version: 1.41
Go version: go1.16.9
Git commit: dea9396
Built: Thu Nov 18 00:38:53 2021
OS/Arch: linux/amd64
Context: default
Experimental: true
Server: Docker Engine - Community
Engine:
Version: 20.10.11
API version: 1.41 (minimum version 1.12)
Go version: go1.16.9
Git commit: 847da18
Built: Thu Nov 18 00:37:17 2021
OS/Arch: linux/amd64
Experimental: false
containerd:
Version: 1.4.12
GitCommit: 7b11cfaabd73bb80907dd23182b9347b4245eb5d
runc:
Version: 1.0.2
GitCommit: v1.0.2-0-g52b36a2
docker-init:
Version: 0.19.0
GitCommit: de40ad0
9、卸载docker
如第一步所示，使用命令yum -y remove docker-ce命令移除新版本的docker；