Docker容器安装配置
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Docker容器安装配置
一、检查服务器环境
1.系统内核
[root@tianyi ~]# uname -r
4.18.0-80.el8.x86_64
[root@tianyi ~]# cat /proc/version
Linux version 4.18.0-80.el8.x86_64 (mockbuild@kbuilder.bsys.centos.org) (gcc version 8.2.1 20180905 (Red Hat 8.2.1-3) (GCC)) #1 SMP Tue Jun 4 09:19:46 UTC 2019
2.系统版本
[root@tianyi ~]# cat /etc/os-release
NAME="CentOS Linux"
VERSION="8 (Core)"
ID="centos"
ID_LIKE="rhel fedora"
VERSION_ID="8"
PLATFORM_ID="platform:el8"
PRETTY_NAME="CentOS Linux 8 (Core)"
ANSI_COLOR="0;31"
CPE_NAME="cpe:/o:centos:centos:8"
HOME_URL="https://www.centos.org/"
BUG_REPORT_URL="https://bugs.centos.org/"
CENTOS_MANTISBT_PROJECT="CentOS-8"
CENTOS_MANTISBT_PROJECT_VERSION="8"
REDHAT_SUPPORT_PRODUCT="centos"
REDHAT_SUPPORT_PRODUCT_VERSION="8"
二、Docker安装
1.Docker官方网址
2.卸载旧的版本docker
[root@tianyi ~]# sudo yum remove docker \\
> docker-client \\
> docker-client-latest \\
> docker-common \\
> docker-latest \\
> docker-latest-logrotate \\
> docker-logrotate \\
> docker-engine
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.
Dependencies resolved.
Nothing to do.
Complete!
3.需要的安装包
[[root@tianyi yum.repos.d]# yum install -y yum-utils device-mapper-persistent-data lvm2
Last metadata expiration check: 0:09:55 ago on Sat 19 Jun 2021 04:23:16 PM CST.
Package yum-utils-4.0.18-4.el8.noarch is already installed.
Package device-mapper-persistent-data-0.7.6-1.el8.x86_64 is already installed.
Package lvm2-8:2.03.02-6.el8.x86_64 is already installed.
Dependencies resolved.
===============================================================================================================================================
Package Architecture Version Repository Size
===============================================================================================================================================
Upgrading:
device-mapper x86_64 8:1.02.175-5.el8 BaseOS 375 k
device-mapper-event x86_64 8:1.02.175-5.el8 BaseOS 269 k
device-mapper-event-libs x86_64 8:1.02.175-5.el8 BaseOS 269 k
device-mapper-libs x86_64 8:1.02.175-5.el8 BaseOS 408 k
device-mapper-persistent-data x86_64 0.8.5-4.el8 BaseOS 468 k
lvm2 x86_64 8:2.03.11-5.el8 BaseOS 1.6 M
lvm2-libs x86_64 8:2.03.11-5.el8 BaseOS 1.1 M
Transaction Summary
===============================================================================================================================================
Upgrade 7 Packages
Total download size: 4.5 M
Downloading Packages:
(1/7): device-mapper-event-libs-1.02.175-5.el8.x86_64.rpm 53 kB/s | 269 kB 00:05
(2/7): device-mapper-1.02.175-5.el8.x86_64.rpm 73 kB/s | 375 kB 00:05
(3/7): device-mapper-event-1.02.175-5.el8.x86_64.rpm 52 kB/s | 269 kB 00:05
(4/7): device-mapper-libs-1.02.175-5.el8.x86_64.rpm 11 MB/s | 408 kB 00:00
(5/7): device-mapper-persistent-data-0.8.5-4.el8.x86_64.rpm 10 MB/s | 468 kB 00:00
(6/7): lvm2-libs-2.03.11-5.el8.x86_64.rpm 14 MB/s | 1.1 MB 00:00
(7/7): lvm2-2.03.11-5.el8.x86_64.rpm 16 MB/s | 1.6 MB 00:00
-----------------------------------------------------------------------------------------------------------------------------------------------
Total 871 kB/s | 4.5 MB 00:05
4.设置镜像的仓库
[root@tianyi yum.repos.d]# cat docker-ce.repo
[docker-ce-stable]
name=Docker CE Stable - $basearch
baseurl=https://repo.huaweicloud.com/docker-ce/linux/centos/8/x86_64/stable/
enabled=1
gpgcheck=0
5.查看docker所有版本
[root@tianyi yum.repos.d]# yum list docker-ce --showduplicates | sort -r
Last metadata expiration check: 0:11:33 ago on Sat 19 Jun 2021 04:23:16 PM CST.
docker-ce.x86_64 3:20.10.7-3.el8 docker-ce-stable
docker-ce.x86_64 3:20.10.6-3.el8 docker-ce-stable
docker-ce.x86_64 3:20.10.5-3.el8 docker-ce-stable
docker-ce.x86_64 3:20.10.4-3.el8 docker-ce-stable
docker-ce.x86_64 3:20.10.3-3.el8 docker-ce-stable
docker-ce.x86_64 3:20.10.2-3.el8 docker-ce-stable
docker-ce.x86_64 3:20.10.1-3.el8 docker-ce-stable
docker-ce.x86_64 3:20.10.0-3.el8 docker-ce-stable
docker-ce.x86_64 3:19.03.15-3.el8 docker-ce-stable
docker-ce.x86_64 3:19.03.14-3.el8 docker-ce-stable
docker-ce.x86_64 3:19.03.13-3.el8 docker-ce-stable
Available Packages
6.安装docker
[root@tianyi yum.repos.d]# yum install --allowerasing docker-ce
Last metadata expiration check: 0:16:31 ago on Sat 19 Jun 2021 04:23:16 PM CST.
Dependencies resolved.
===============================================================================================================================================
Package Architecture Version Repository Size
===============================================================================================================================================
Installing:
docker-ce x86_64 3:20.10.7-3.el8 docker-ce-stable 27 M
Upgrading:
fuse-overlayfs x86_64 1.4.0-3.module_el8.4.0+830+8027e1c4 AppStream 72 k
slirp4netns x86_64 1.1.8-1.module_el8.4.0+641+6116a774 AppStream 51 k
Installing dependencies:
containerd.io x86_64 1.4.6-3.1.el8 docker-ce-stable 34 M
replacing runc.x86_64 1.0.0-55.rc5.dev.git2abd837.module_el8.0.0+58+91b614e7
docker-ce-cli x86_64 1:20.10.7-3.el8 docker-ce-stable 33 M
docker-ce-rootless-extras x86_64 20.10.7-3.el8 docker-ce-stable 9.2 M
docker-scan-plugin x86_64 0.8.0-3.el8 docker-ce-stable 4.2 M
fuse-common x86_64 3.2.1-12.el8 BaseOS 21 k
fuse3 x86_64 3.2.1-12.el8 BaseOS 50 k
libcgroup x86_64 0.41-19.el8 BaseOS 70 k
libslirp x86_64 4.3.1-1.module_el8.4.0+575+63b40ad7 AppStream 69 k
Removing dependent packages:
buildah x86_64 1.5-3.gite94b4f9.module_el8.0.0+58+91b614e7 @AppStream 20 M
Transaction Summary
===============================================================================================================================================
Install 9 Packages
Upgrade 2 Packages
Remove 1 Package
Total download size: 107 M
Is this ok [y/N]: y
[root@tianyi yum.repos.d]# yum install docker-ce docker-ce-cli containerd.io
Last metadata expiration check: 0:01:22 ago on Sat 19 Jun 2021 04:14:46 PM CST.
7.启动docker服务
[root@tianyi yum.repos.d]# systemctl start docker
[root@tianyi yum.repos.d]# systemctl status docker
● docker.service - Docker Application Container Engine
Loaded: loaded (/usr/lib/systemd/system/docker.service; disabled; vendor preset: disabled)
Active: active (running) since Sat 2021-06-19 16:43:04 CST; 21s ago
Docs: https://docs.docker.com
Main PID: 9017 (dockerd)
Tasks: 8
Memory: 48.3M
CGroup: /system.slice/docker.service
└─9017 /usr/bin/dockerd -H fd:// --containerd=/run/containerd/containerd.sock
Jun 19 16:43:02 tianyi dockerd[9017]: time="2021-06-19T16:43:02.076357438+08:00" level=warning msg="Your kernel does not support cgroup blkio >
Jun 19 16:43:02 tianyi dockerd[9017]: time="2021-06-19T16:43:02.076378964+08:00" level=warning msg="Your kernel does not support cgroup blkio >
Jun 19 16:43:02 tianyi dockerd[9017]: time="2021-06-19T16:43:02.076520838+08:00" level=info msg="Loading containers: start."
Jun 19 16:43:03 tianyi dockerd[9017]: time="2021-06-19T16:43:03.722799159+08:00" level=info msg="Default bridge (docker0) is assigned with an >
Jun 19 16:43:04 tianyi dockerd[9017]: time="2021-06-19T16:43:04.259472522+08:00" level=info msg="Firewalld: interface docker0 already part of >
Jun 19 16:43:04 tianyi dockerd[9017]: time="2021-06-19T16:43:04.391777195+08:00" level=info msg="Loading containers: done."
Jun 19 16:43:04 tianyi dockerd[9017]: time="2021-06-19T16:43:04.490571539+08:00" level=info msg="Docker daemon" commit=b0f5bc3 graphdriver(s)=>
Jun 19 16:43:04 tianyi dockerd[9017]: time="2021-06-19T16:43:04.490671132+08:00" level=info msg="Daemon has completed initialization"
Jun 19 16:43:04 tianyi systemd[1]: Started Docker Application Container Engine.
Jun 19 16:43:04 tianyi dockerd[9017]: time="2021-06-19T16:43:04.536063635+08:00" level=info msg="API listen on /var/run/docker.sock"
lines 1-20/20 (END)
三、查看docker安装版本
[root@tianyi yum.repos.d]# docker version
Client: Docker Engine - Community
Version: 20.10.7
API version: 1.41
Go version: go1.13.15
Git commit: f0df350
Built: Wed Jun 2 11:56:24 2021
OS/Arch: linux/amd64
Context: default
Experimental: true
Server: Docker Engine - Community
Engine:
Version: 20.10.7
API version: 1.41 (minimum version 1.12)
Go version: go1.13.15
Git commit: b0f5bc3
Built: Wed Jun 2 11:54:48 2021
OS/Arch: linux/amd64
Experimental: false
containerd:
Version: 1.4.6
GitCommit: d71fcd7d8303cbf684402823e425e9dd2e99285d
runc:
Version: 1.0.0-rc95
GitCommit: b9ee9c6314599f1b4a7f497e1f1f856fe433d3b7
docker-init:
Version: 0.19.0
GitCommit: de40ad0
[root@tianyi yum.repos.d]#
四、Docker常用操作
1.运行hello world
[root@tianyi ~]# docker run hello-world
Unable to find image 'hello-world:latest' locally
latest: Pulling from library/hello-world
b8dfde127a29: Pull complete
Digest: sha256:9f6ad537c5132bcce57f7a0a20e317228d382c3cd61edae14650eec68b2b345c
Status: Downloaded newer image for hello-world:latest
[root@tianyi ~]# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
hello-world latest d1165f221234 3 months ago 13.3kB
五、卸载docker
1.卸载相关包
yum remove docker-ce docker-ce-cli containerd.io
2.清空环境
sudo rm -rf /var/lib/docker
sudo rm -rf /var/lib/containerd
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