参考：https://www.runoob.com/docker/centos-docker-install.html
参考：https://docs.docker.com/install/linux/docker-ce/centos/
1.卸载旧版本
[root@localhost ~]# yum remove docker docker-client docker-client-latest docker-common docker-latest docker-latest-logrotate docker-logrotate docker-engine
Loaded plugins: fastestmirror, langpacks
No Match for argument: docker
No Match for argument: docker-client
No Match for argument: docker-client-latest
No Match for argument: docker-common
No Match for argument: docker-latest
No Match for argument: docker-latest-logrotate
No Match for argument: docker-logrotate
No Match for argument: docker-engine
No Packages marked for removal
[root@localhost ~]#
2.安装 Docker Engine-Community
docker官方rpm下载地址： https://download.docker.com/linux/centos/7/x86_64/stable/Packages/
使用 Docker 仓库进行安装
设置仓库
安装所需的软件包。yum-utils 提供了 yum-config-manager ，并且 device mapper 存储驱动程序需要 device-mapper-persistent-data 和 lvm2
yum install -y yum-utils device-mapper-persistent-data lvm2
[root@localhost tmp]# yum install -y yum-utils device-mapper-persistent-data lvm2
Loaded plugins: fastestmirror, langpacks
base | 3.6 kB 00:00:00
extras | 2.9 kB 00:00:00
updates | 2.9 kB 00:00:00
(1/4): extras/7/x86_64/primary_db | 164 kB 00:00:00
(2/4): base/7/x86_64/primary_db | 6.0 MB 00:00:04
(3/4): updates/7/x86_64/primary_db | 7.5 MB 00:00:05
(4/4): base/7/x86_64/group_gz | 165 kB 00:00:10
Determining fastest mirrors
* base: mirrors.cn99.com
* extras: mirrors.cn99.com
* updates: mirrors.cn99.com
Resolving Dependencies
--> Running transaction check
---> Package device-mapper-persistent-data.x86_64 0:0.7.0-0.1.rc6.el7 will be updated
---> Package device-mapper-persistent-data.x86_64 0:0.8.5-1.el7 will be an update
---> Package lvm2.x86_64 7:2.02.171-8.el7 will be updated
---> Package lvm2.x86_64 7:2.02.185-2.el7_7.2 will be an update
--> Processing Dependency: lvm2-libs = 7:2.02.185-2.el7_7.2 for package: 7:lvm2-2.02.185-2.el7_7.2.x86_64
--> Processing Dependency: libdevmapper.so.1.02(DM_1_02_141)(64bit) for package: 7:lvm2-2.02.185-2.el7_7.2.x86_64
---> Package yum-utils.noarch 0:1.1.31-42.el7 will be updated
---> Package yum-utils.noarch 0:1.1.31-52.el7 will be an update
--> Running transaction check
---> Package device-mapper-libs.x86_64 7:1.02.140-8.el7 will be updated
--> Processing Dependency: device-mapper-libs = 7:1.02.140-8.el7 for package: 7:device-mapper-1.02.140-8.el7.x86_64
---> Package device-mapper-libs.x86_64 7:1.02.158-2.el7_7.2 will be an update
---> Package lvm2-libs.x86_64 7:2.02.171-8.el7 will be updated
---> Package lvm2-libs.x86_64 7:2.02.185-2.el7_7.2 will be an update
--> Processing Dependency: device-mapper-event = 7:1.02.158-2.el7_7.2 for package: 7:lvm2-libs-2.02.185-2.el7_7.2.x86_64
--> Running transaction check
---> Package device-mapper.x86_64 7:1.02.140-8.el7 will be updated
---> Package device-mapper.x86_64 7:1.02.158-2.el7_7.2 will be an update
---> Package device-mapper-event.x86_64 7:1.02.140-8.el7 will be updated
---> Package device-mapper-event.x86_64 7:1.02.158-2.el7_7.2 will be an update
--> Processing Dependency: device-mapper-event-libs = 7:1.02.158-2.el7_7.2 for package: 7:device-mapper-event-1.02.158-2.el7_7.2.x86_64
--> Running transaction check
---> Package device-mapper-event-libs.x86_64 7:1.02.140-8.el7 will be updated
---> Package device-mapper-event-libs.x86_64 7:1.02.158-2.el7_7.2 will be an update
--> Finished Dependency Resolution
Dependencies Resolved
=====================================================================================================================
Package Arch Version Repository Size
=====================================================================================================================
Updating:
device-mapper-persistent-data x86_64 0.8.5-1.el7 base 423 k
lvm2 x86_64 7:2.02.185-2.el7_7.2 updates 1.3 M
yum-utils noarch 1.1.31-52.el7 base 121 k
Updating for dependencies:
device-mapper x86_64 7:1.02.158-2.el7_7.2 updates 294 k
device-mapper-event x86_64 7:1.02.158-2.el7_7.2 updates 190 k
device-mapper-event-libs x86_64 7:1.02.158-2.el7_7.2 updates 189 k
device-mapper-libs x86_64 7:1.02.158-2.el7_7.2 updates 322 k
lvm2-libs x86_64 7:2.02.185-2.el7_7.2 updates 1.1 M
Transaction Summary
=====================================================================================================================
Upgrade 3 Packages (+5 Dependent packages)
Total download size: 3.9 M
Downloading packages:
No Presto metadata available for base
No Presto metadata available for updates
warning: /var/cache/yum/x86_64/7/updates/packages/device-mapper-event-libs-1.02.158-2.el7_7.2.x86_64.rpm: Header V3 RSA/SHA256 Signature, key ID f4a80eb5: NOKEY
Public key for device-mapper-event-libs-1.02.158-2.el7_7.2.x86_64.rpm is not installed
(1/8): device-mapper-event-libs-1.02.158-2.el7_7.2.x86_64.rpm | 189 kB 00:00:00
(2/8): device-mapper-libs-1.02.158-2.el7_7.2.x86_64.rpm | 322 kB 00:00:00
(3/8): lvm2-2.02.185-2.el7_7.2.x86_64.rpm | 1.3 MB 00:00:00
(4/8): device-mapper-1.02.158-2.el7_7.2.x86_64.rpm | 294 kB 00:00:01
Public key for device-mapper-persistent-data-0.8.5-1.el7.x86_64.rpm is not installed 643 kB/s | 2.9 MB 00:00:01 ETA
(5/8): device-mapper-persistent-data-0.8.5-1.el7.x86_64.rpm | 423 kB 00:00:01
(6/8): lvm2-libs-2.02.185-2.el7_7.2.x86_64.rpm | 1.1 MB 00:00:00
(7/8): yum-utils-1.1.31-52.el7.noarch.rpm | 121 kB 00:00:00
(8/8): device-mapper-event-1.02.158-2.el7_7.2.x86_64.rpm | 190 kB 00:00:05
---------------------------------------------------------------------------------------------------------------------
Total 672 kB/s | 3.9 MB 00:00:05
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-7-4.1708.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
Updating : 7:device-mapper-libs-1.02.158-2.el7_7.2.x86_64 1/16
Updating : 7:device-mapper-1.02.158-2.el7_7.2.x86_64 2/16
Updating : 7:device-mapper-event-libs-1.02.158-2.el7_7.2.x86_64 3/16
Updating : 7:device-mapper-event-1.02.158-2.el7_7.2.x86_64 4/16
Updating : 7:lvm2-libs-2.02.185-2.el7_7.2.x86_64 5/16
Updating : device-mapper-persistent-data-0.8.5-1.el7.x86_64 6/16
Updating : 7:lvm2-2.02.185-2.el7_7.2.x86_64 7/16
Updating : yum-utils-1.1.31-52.el7.noarch 8/16
Cleanup : 7:lvm2-2.02.171-8.el7.x86_64 9/16
Cleanup : yum-utils-1.1.31-42.el7.noarch 10/16
Cleanup : 7:lvm2-libs-2.02.171-8.el7.x86_64 11/16
Cleanup : 7:device-mapper-event-1.02.140-8.el7.x86_64 12/16
Cleanup : 7:device-mapper-event-libs-1.02.140-8.el7.x86_64 13/16
Cleanup : 7:device-mapper-libs-1.02.140-8.el7.x86_64 14/16
Cleanup : 7:device-mapper-1.02.140-8.el7.x86_64 15/16
Cleanup : device-mapper-persistent-data-0.7.0-0.1.rc6.el7.x86_64 16/16
Verifying : 7:device-mapper-1.02.158-2.el7_7.2.x86_64 1/16
Verifying : 7:lvm2-2.02.185-2.el7_7.2.x86_64 2/16
Verifying : device-mapper-persistent-data-0.8.5-1.el7.x86_64 3/16
Verifying : yum-utils-1.1.31-52.el7.noarch 4/16
Verifying : 7:device-mapper-libs-1.02.158-2.el7_7.2.x86_64 5/16
Verifying : 7:lvm2-libs-2.02.185-2.el7_7.2.x86_64 6/16
Verifying : 7:device-mapper-event-1.02.158-2.el7_7.2.x86_64 7/16
Verifying : 7:device-mapper-event-libs-1.02.158-2.el7_7.2.x86_64 8/16
Verifying : yum-utils-1.1.31-42.el7.noarch 9/16
Verifying : 7:device-mapper-1.02.140-8.el7.x86_64 10/16
Verifying : 7:device-mapper-event-libs-1.02.140-8.el7.x86_64 11/16
Verifying : 7:device-mapper-libs-1.02.140-8.el7.x86_64 12/16
Verifying : 7:lvm2-2.02.171-8.el7.x86_64 13/16
Verifying : device-mapper-persistent-data-0.7.0-0.1.rc6.el7.x86_64 14/16
Verifying : 7:device-mapper-event-1.02.140-8.el7.x86_64 15/16
Verifying : 7:lvm2-libs-2.02.171-8.el7.x86_64 16/16
Updated:
device-mapper-persistent-data.x86_64 0:0.8.5-1.el7 lvm2.x86_64 7:2.02.185-2.el7_7.2
yum-utils.noarch 0:1.1.31-52.el7
Dependency Updated:
device-mapper.x86_64 7:1.02.158-2.el7_7.2 device-mapper-event.x86_64 7:1.02.158-2.el7_7.2
device-mapper-event-libs.x86_64 7:1.02.158-2.el7_7.2 device-mapper-libs.x86_64 7:1.02.158-2.el7_7.2
lvm2-libs.x86_64 7:2.02.185-2.el7_7.2
Complete!
[root@localhost tmp]#
使用以下命令来设置稳定的仓库。
yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo
[root@localhost tmp]# yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo
Loaded plugins: fastestmirror, langpacks
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@localhost tmp]#
安装 Docker Engine-Community
yum install docker-ce docker-ce-cli containerd.io
如果提示您接受 GPG 密钥，请选是。
[root@localhost tmp]# yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo
Loaded plugins: fastestmirror, langpacks
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@localhost tmp]#
[root@localhost tmp]#
[root@localhost tmp]# yum install docker-ce docker-ce-cli containerd.io
Loaded plugins: fastestmirror, langpacks
docker-ce-stable | 3.5 kB 00:00:00
(1/2): docker-ce-stable/x86_64/primary_db | 41 kB 00:00:00
(2/2): docker-ce-stable/x86_64/updateinfo | 55 B 00:00:01
Loading mirror speeds from cached hostfile
* base: mirrors.cn99.com
* extras: mirrors.cn99.com
* updates: mirrors.cn99.com
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
---> Package docker-ce-cli.x86_64 1:19.03.8-3.el7 will be installed
--> Running transaction check
---> Package container-selinux.noarch 2:2.107-3.el7 will be installed
--> Processing Dependency: selinux-policy-targeted >= 3.13.1-216.el7 for package: 2:container-selinux-2.107-3.el7.noarch
--> Processing Dependency: selinux-policy-base >= 3.13.1-216.el7 for package: 2:container-selinux-2.107-3.el7.noarch
--> Processing Dependency: selinux-policy >= 3.13.1-216.el7 for package: 2:container-selinux-2.107-3.el7.noarch
--> Running transaction check
---> Package selinux-policy.noarch 0:3.13.1-166.el7 will be updated
---> Package selinux-policy.noarch 0:3.13.1-252.el7_7.6 will be an update
--> Processing Dependency: policycoreutils >= 2.5-24 for package: selinux-policy-3.13.1-252.el7_7.6.noarch
--> Processing Dependency: libsemanage >= 2.5-13 for package: selinux-policy-3.13.1-252.el7_7.6.noarch
---> Package selinux-policy-targeted.noarch 0:3.13.1-166.el7 will be updated
---> Package selinux-policy-targeted.noarch 0:3.13.1-252.el7_7.6 will be an update
--> Running transaction check
---> Package libsemanage.x86_64 0:2.5-8.el7 will be updated
--> Processing Dependency: libsemanage = 2.5-8.el7 for package: libsemanage-python-2.5-8.el7.x86_64
---> Package libsemanage.x86_64 0:2.5-14.el7 will be an update
--> Processing Dependency: libsepol >= 2.5-10 for package: libsemanage-2.5-14.el7.x86_64
--> Processing Dependency: libselinux >= 2.5-14 for package: libsemanage-2.5-14.el7.x86_64
---> Package policycoreutils.x86_64 0:2.5-17.1.el7 will be updated
--> Processing Dependency: policycoreutils = 2.5-17.1.el7 for package: policycoreutils-python-2.5-17.1.el7.x86_64
---> Package policycoreutils.x86_64 0:2.5-33.el7 will be an update
--> Processing Dependency: libselinux-utils >= 2.5-14 for package: policycoreutils-2.5-33.el7.x86_64
--> Running transaction check
---> Package libselinux.x86_64 0:2.5-11.el7 will be updated
--> Processing Dependency: libselinux(x86-64) = 2.5-11.el7 for package: libselinux-python-2.5-11.el7.x86_64
---> Package libselinux.x86_64 0:2.5-14.1.el7 will be an update
---> Package libselinux-utils.x86_64 0:2.5-11.el7 will be updated
---> Package libselinux-utils.x86_64 0:2.5-14.1.el7 will be an update
---> Package libsemanage-python.x86_64 0:2.5-8.el7 will be updated
---> Package libsemanage-python.x86_64 0:2.5-14.el7 will be an update
---> Package libsepol.x86_64 0:2.5-6.el7 will be updated
---> Package libsepol.x86_64 0:2.5-10.el7 will be an update
---> Package policycoreutils-python.x86_64 0:2.5-17.1.el7 will be updated
---> Package policycoreutils-python.x86_64 0:2.5-33.el7 will be an update
--> Processing Dependency: setools-libs >= 3.3.8-4 for package: policycoreutils-python-2.5-33.el7.x86_64
--> Running transaction check
---> Package libselinux-python.x86_64 0:2.5-11.el7 will be updated
---> Package libselinux-python.x86_64 0:2.5-14.1.el7 will be an update
---> Package setools-libs.x86_64 0:3.3.8-1.1.el7 will be updated
---> Package setools-libs.x86_64 0:3.3.8-4.el7 will be an update
--> 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
Installing for dependencies:
container-selinux noarch 2:2.107-3.el7 extras 39 k
Updating for dependencies:
libselinux x86_64 2.5-14.1.el7 base 162 k
libselinux-python x86_64 2.5-14.1.el7 base 235 k
libselinux-utils x86_64 2.5-14.1.el7 base 151 k
libsemanage x86_64 2.5-14.el7 base 151 k
libsemanage-python x86_64 2.5-14.el7 base 113 k
libsepol x86_64 2.5-10.el7 base 297 k
policycoreutils x86_64 2.5-33.el7 base 916 k
policycoreutils-python x86_64 2.5-33.el7 base 457 k
selinux-policy noarch 3.13.1-252.el7_7.6 updates 492 k
selinux-policy-targeted noarch 3.13.1-252.el7_7.6 updates 7.0 M
setools-libs x86_64 3.3.8-4.el7 base 620 k
Transaction Summary
=====================================================================================================================
Install 3 Packages (+ 1 Dependent package)
Upgrade ( 11 Dependent packages)
Total download size: 98 M
Is this ok [y/d/N]: y
Downloading packages:
No Presto metadata available for base
No Presto metadata available for updates
(1/15): container-selinux-2.107-3.el7.noarch.rpm | 39 kB 00:00:00
warning: /var/cache/yum/x86_64/7/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
(2/15): containerd.io-1.2.13-3.1.el7.x86_64.rpm | 23 MB 00:00:21
(3/15): libselinux-utils-2.5-14.1.el7.x86_64.rpm | 151 kB 00:00:01
(4/15): libselinux-python-2.5-14.1.el7.x86_64.rpm | 235 kB 00:00:01
(5/15): libsemanage-2.5-14.el7.x86_64.rpm | 151 kB 00:00:00
(6/15): libsemanage-python-2.5-14.el7.x86_64.rpm | 113 kB 00:00:00
(7/15): libsepol-2.5-10.el7.x86_64.rpm | 297 kB 00:00:00
(8/15): docker-ce-19.03.8-3.el7.x86_64.rpm | 25 MB 00:00:24
(9/15): policycoreutils-2.5-33.el7.x86_64.rpm | 916 kB 00:00:01
(10/15): policycoreutils-python-2.5-33.el7.x86_64.rpm | 457 kB 00:00:00
(11/15): selinux-policy-3.13.1-252.el7_7.6.noarch.rpm | 492 kB 00:00:00
(12/15): setools-libs-3.3.8-4.el7.x86_64.rpm | 620 kB 00:00:00
(13/15): libselinux-2.5-14.1.el7.x86_64.rpm | 162 kB 00:00:06
(14/15): selinux-policy-targeted-3.13.1-252.el7_7.6.noarch.rpm | 7.0 MB 00:00:12
(15/15): docker-ce-cli-19.03.8-3.el7.x86_64.rpm | 40 MB 00:00:19
---------------------------------------------------------------------------------------------------------------------
Total 2.4 MB/s | 98 MB 00:00:40
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
Is this ok [y/N]: y
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
Updating : libsepol-2.5-10.el7.x86_64 1/26
Updating : libselinux-2.5-14.1.el7.x86_64 2/26
Updating : libsemanage-2.5-14.el7.x86_64 3/26
Updating : libselinux-utils-2.5-14.1.el7.x86_64 4/26
Updating : policycoreutils-2.5-33.el7.x86_64 5/26
Updating : selinux-policy-3.13.1-252.el7_7.6.noarch 6/26
Updating : selinux-policy-targeted-3.13.1-252.el7_7.6.noarch 7/26
Updating : libsemanage-python-2.5-14.el7.x86_64 8/26
Updating : setools-libs-3.3.8-4.el7.x86_64 9/26
Updating : libselinux-python-2.5-14.1.el7.x86_64 10/26
Updating : policycoreutils-python-2.5-33.el7.x86_64 11/26
Installing : 2:container-selinux-2.107-3.el7.noarch 12/26
Installing : containerd.io-1.2.13-3.1.el7.x86_64 13/26
Installing : 1:docker-ce-cli-19.03.8-3.el7.x86_64 14/26
Installing : 3:docker-ce-19.03.8-3.el7.x86_64 15/26
Cleanup : policycoreutils-python-2.5-17.1.el7.x86_64 16/26
Cleanup : selinux-policy-targeted-3.13.1-166.el7.noarch 17/26
Cleanup : selinux-policy-3.13.1-166.el7.noarch 18/26
Cleanup : policycoreutils-2.5-17.1.el7.x86_64 19/26
Cleanup : libselinux-utils-2.5-11.el7.x86_64 20/26
Cleanup : setools-libs-3.3.8-1.1.el7.x86_64 21/26
Cleanup : libselinux-python-2.5-11.el7.x86_64 22/26
Cleanup : libsemanage-python-2.5-8.el7.x86_64 23/26
Cleanup : libsemanage-2.5-8.el7.x86_64 24/26
Cleanup : libselinux-2.5-11.el7.x86_64 25/26
Cleanup : libsepol-2.5-6.el7.x86_64 26/26
Verifying : 2:container-selinux-2.107-3.el7.noarch 1/26
Verifying : selinux-policy-3.13.1-252.el7_7.6.noarch 2/26
Verifying : 1:docker-ce-cli-19.03.8-3.el7.x86_64 3/26
Verifying : setools-libs-3.3.8-4.el7.x86_64 4/26
Verifying : policycoreutils-python-2.5-33.el7.x86_64 5/26
Verifying : libsemanage-python-2.5-14.el7.x86_64 6/26
Verifying : libsemanage-2.5-14.el7.x86_64 7/26
Verifying : libsepol-2.5-10.el7.x86_64 8/26
Verifying : 3:docker-ce-19.03.8-3.el7.x86_64 9/26
Verifying : policycoreutils-2.5-33.el7.x86_64 10/26
Verifying : libselinux-python-2.5-14.1.el7.x86_64 11/26
Verifying : libselinux-utils-2.5-14.1.el7.x86_64 12/26
Verifying : selinux-policy-targeted-3.13.1-252.el7_7.6.noarch 13/26
Verifying : containerd.io-1.2.13-3.1.el7.x86_64 14/26
Verifying : libselinux-2.5-14.1.el7.x86_64 15/26
Verifying : libselinux-utils-2.5-11.el7.x86_64 16/26
Verifying : libselinux-2.5-11.el7.x86_64 17/26
Verifying : libsepol-2.5-6.el7.x86_64 18/26
Verifying : policycoreutils-python-2.5-17.1.el7.x86_64 19/26
Verifying : selinux-policy-3.13.1-166.el7.noarch 20/26
Verifying : policycoreutils-2.5-17.1.el7.x86_64 21/26
Verifying : libsemanage-python-2.5-8.el7.x86_64 22/26
Verifying : libsemanage-2.5-8.el7.x86_64 23/26
Verifying : libselinux-python-2.5-11.el7.x86_64 24/26
Verifying : selinux-policy-targeted-3.13.1-166.el7.noarch 25/26
Verifying : setools-libs-3.3.8-1.1.el7.x86_64 26/26
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
Dependency Installed:
container-selinux.noarch 2:2.107-3.el7
Dependency Updated:
libselinux.x86_64 0:2.5-14.1.el7 libselinux-python.x86_64 0:2.5-14.1.el7
libselinux-utils.x86_64 0:2.5-14.1.el7 libsemanage.x86_64 0:2.5-14.el7
libsemanage-python.x86_64 0:2.5-14.el7 libsepol.x86_64 0:2.5-10.el7
policycoreutils.x86_64 0:2.5-33.el7 policycoreutils-python.x86_64 0:2.5-33.el7
selinux-policy.noarch 0:3.13.1-252.el7_7.6 selinux-policy-targeted.noarch 0:3.13.1-252.el7_7.6
setools-libs.x86_64 0:3.3.8-4.el7
Complete!
[root@localhost tmp]#
要安装特定版本的 Docker Engine-Community，请在存储库中列出可用版本，然后选择并安装：
列出并排序您存储库中可用的版本。此示例按版本号（从高到低）对结果进行排序。
yum list docker-ce --showduplicates | sort -r
[root@localhost tmp]# yum list docker-ce --showduplicates | sort -r
* updates: mirrors.cn99.com
Loading mirror speeds from cached hostfile
Loaded plugins: fastestmirror, langpacks
Installed Packages
* extras: mirrors.cn99.com
docker-ce.x86_64 3:19.03.8-3.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
通过其完整的软件包名称安装特定版本，该软件包名称是软件包名称（docker-ce）加上版本字符串（第二列），从第一个冒号（:）一直到第一个连字符，并用连字符（-）分隔。例如：docker-ce-18.09.1。
yum install docker-ce-<VERSION_STRING> docker-ce-cli-<VERSION_STRING> containerd.io
3.启动 Docker。
systemctl start docker
4.查看docker版本
docker version
[root@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: 1.2.13
GitCommit: 7ad184331fa3e55e52b890ea95e65ba581ae3429
runc:
Version: 1.0.0-rc10
GitCommit: dc9208a3303feef5b3839f4323d9beb36df0a9dd
docker-init:
Version: 0.18.0
GitCommit: fec3683
[root@localhost ~]#
5.通过运行 hello-world 映像来验证是否正确安装了 Docker Engine-Community 。
[root@localhost tmp]# docker run hello-world
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/
[root@localhost tmp]#
异常打印
[root@localhost tmp]# docker run hello-world
Unable to find image 'hello-world:latest' locally
docker: Error response from daemon: Get https://registry-1.docker.io/v2/library/hello-world/manifests/latest: Get https://auth.docker.io/token?scope=repository%3Alibrary%2Fhello-world%3Apull&service=registry.docker.io: net/http: request canceled while waiting for connection (Client.Timeout exceeded while awaiting headers).
See 'docker run --help'.
[root@localhost tmp]#
异常原因：访问国外镜像或者网络问题
解决方案：镜像加速，或者通过docker pull hub.c.163.com/library/hello-world:latest下载镜像后再次执行
6.Docker 镜像加速（设置国内镜像）
[root@localhost tmp]# vim /etc/docker/daemon.json
在 /etc/docker/daemon.json 中写入如下内容（如果文件不存在请新建该文件）
{"registry-mirrors":["https://registry.docker-cn.com"]}
重启docker
[root@localhost tmp]# systemctl daemon-reload
[root@localhost tmp]# systemctl restart docker
检查加速器是否生效
[root@localhost tmp]# docker info
内容中是否有
Registry Mirrors:
https://registry.docker-cn.com/
国内加速站点
加速站点对比可参考：https://ieevee.com/tech/2016/09/28/docker-mirror.html#
DOcker国内仓库和镜像：https://www.cnblogs.com/wushuaishuai/p/9984228.html
官方中国版：https://registry.docker-cn.com
网易163：http://hub-mirror.c.163.com
ustc的镜像：https://docker.mirrors.ustc.edu.cn
阿里云：https://3laho3y3.mirror.aliyuncs.com
DaoCloud：http://f1361db2.m.daocloud.io
7.设置docker开机
systemctl enable docker
查看设置是否有效
systemctl list-unit-files | grep docker