文档课题：Linux操作系统下docker的安装.

系统：centos 7.9 64位

1、删旧版docker

[root@Leo-Docker ~]# yum remove docker \

docker-client \

docker-client-latest \

docker-common \

docker-latest \

docker-latest-logrotate \

docker-logrotate \

docker-engine \

podman \

runc

 

2、安装依赖包

[root@Leo-Docker ~]# yum install -y yum-utils device-mapper-persistent-data lvm2

 

3、配置yum

[root@Leo-Docker ~]# 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

[root@Leo-Docker ~]# yum makecache fast

Loaded plugins: fastestmirror, langpacks

Loading mirror speeds from cached hostfile

 * base: ftp.sjtu.edu.cn

 * extras: ftp.sjtu.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/primary_db                                                                            | 116 kB  00:00:00    

(2/2): docker-ce-stable/7/x86_64/updateinfo                                                                            |   55 B  00:00:00    

Metadata Cache Created

 

4、安装docker

[root@Leo-Docker ~]# yum -y install docker-ce docker-ce-cli containerd.io docker-compose-plugin

 

5、启动docker

[root@Leo-Docker ~]# systemctl start docker

[root@Leo-Docker ~]# 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 Sun 2023-08-13 22:22:31 CST; 33s ago

     Docs: https://docs.docker.com

 Main PID: 3818 (dockerd)

    Tasks: 10

   Memory: 31.5M

   CGroup: /system.slice/docker.service

           └─3818 /usr/bin/dockerd -H fd:// --containerd=/run/containerd/containerd.sock

 

Aug 13 22:22:30 Leo-Docker systemd[1]: Starting Docker Application Container Engine...

Aug 13 22:22:30 Leo-Docker dockerd[3818]: time="2023-08-13T22:22:30.369512946+08:00" level=info msg="Starting up"

Aug 13 22:22:30 Leo-Docker dockerd[3818]: time="2023-08-13T22:22:30.458217901+08:00" level=info msg="Loading containers: start."

Aug 13 22:22:31 Leo-Docker dockerd[3818]: time="2023-08-13T22:22:31.367880091+08:00" level=info msg="Firewalld: interface docker0 al...urning"

Aug 13 22:22:31 Leo-Docker dockerd[3818]: time="2023-08-13T22:22:31.493809091+08:00" level=info msg="Loading containers: done."

Aug 13 22:22:31 Leo-Docker dockerd[3818]: time="2023-08-13T22:22:31.542200866+08:00" level=info msg="Docker daemon" commit=a61e2b4 g...=24.0.5

Aug 13 22:22:31 Leo-Docker dockerd[3818]: time="2023-08-13T22:22:31.542423043+08:00" level=info msg="Daemon has completed initialization"

Aug 13 22:22:31 Leo-Docker dockerd[3818]: time="2023-08-13T22:22:31.591476278+08:00" level=info msg="API listen on /run/docker.sock"

Aug 13 22:22:31 Leo-Docker systemd[1]: Started Docker Application Container Engine.

Hint: Some lines were ellipsized, use -l to show in full.

 

-开机自启

[root@Leo-Docker ~]# systemctl enable docker

 

6、相关查询

[root@Leo-Docker ~]# docker version

Client: Docker Engine - Community

 Version:           24.0.5

 API version:       1.43

 Go version:        go1.20.6

 Git commit:        ced0996

 Built:             Fri Jul 21 20:39:02 2023

 OS/Arch:           linux/amd64

 Context:           default

Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?

 

[root@Leo-Docker ~]# docker images

REPOSITORY   TAG       IMAGE ID   CREATED   SIZE

 

--拉取官方hello-world镜像

[root@Leo-Docker ~]# docker pull hello-world

Using default tag: latest

latest: Pulling from library/hello-world

719385e32844: Pull complete

 

^C

[root@Leo-Docker ~]# docker images

REPOSITORY    TAG       IMAGE ID       CREATED        SIZE

hello-world   latest    9c7a54a9a43c   3 months ago   13.3kB

 

参考网址：

https://www.bilibili.com/video/BV1vY4y1X7vP/?spm_id_from=333.337.search-card.all.click&vd_source=8c872e2fd1d99229b38a73ed6718b776