Ubuntu22.04安装Docker

文章目录

1.更新apt

sudo apt update

注：执行结果如下，“…”表示省略中间安装输出的内容，不然太多了

root@gt-ubuntu22-04-cmd-v1-0-32gb-100m:/home/ubuntu/ocr# sudo apt update
Get:1 https://mirrors.tuna.tsinghua.edu.cn/ubuntu jammy InRelease [270 kB]
Get:2 https://mirrors.tuna.tsinghua.edu.cn/ubuntu jammy-updates InRelease [119 kB]
......
Get:48 https://mirrors.tuna.tsinghua.edu.cn/ubuntu jammy-security/multiverse amd64 c-n-f Metadata [260 B]
Fetched 28.7 MB in 4s (6687 kB/s)                           
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
233 packages can be upgraded. Run 'apt list --upgradable' to see them.

2.更新相关依赖和工具包

sudo apt install apt-transport-https ca-certificates curl gnupg-agent software-properties-common

注：执行结果如下，“…”表示省略中间安装输出的内容，不然太多了

root@gt-ubuntu22-04-cmd-v1-0-32gb-100m:/home/ubuntu/ocr# sudo apt install apt-transport-https ca-certificates curl gnupg-agent software-properties-common
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
The following additional packages will be installed:
  dirmngr gnupg gnupg-l10n gnupg-utils gpg gpg-agent gpg-wks-client gpg-wks-server gpgconf gpgsm gpgv libcurl4
  python3-software-properties
Suggested packages:
    
....................                                                                                                   

No containers need to be restarted.

No user sessions are running outdated binaries.

No VM guests are running outdated hypervisor (qemu) binaries on this host.

3.设置docker镜像源

curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -

注：出现OK表示设置成功

root@gt-ubuntu22-04-cmd-v1-0-32gb-100m:/home/ubuntu/ocr# curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -
Warning: apt-key is deprecated. Manage keyring files in trusted.gpg.d instead (see apt-key(8)).
OK

4.添加 Docker APT 仓库源

sudo add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable"

注：执行结果如下

root@gt-ubuntu22-04-cmd-v1-0-32gb-100m:/home/ubuntu/ocr# sudo add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable"
Repository: 'deb [arch=amd64] https://download.docker.com/linux/ubuntu jammy stable'
Description:
Archive for codename: jammy components: stable
More info: https://download.docker.com/linux/ubuntu
Adding repository.
Press [ENTER] to continue or Ctrl-c to cancel.sudo apt install docker-ce docker-ce-cli containerd.io

.........

apt  install docker.io      # version 20.10.21-0ubuntu1~22.04.3
apt  install podman-docker  # version 3.4.4+ds1-1ubuntu1.22.04.1
See 'snap info docker' for additional versions.

5.更新apt，以保证后续安装的是最新版docker

sudo apt update

注：执行结果如下

root@gt-ubuntu22-04-cmd-v1-0-32gb-100m:/home/ubuntu/ocr# sudo apt update
Hit:1 https://mirrors.tuna.tsinghua.edu.cn/ubuntu jammy InRelease                  
Hit:2 https://mirrors.tuna.tsinghua.edu.cn/ubuntu jammy-updates InRelease          
Hit:3 https://mirrors.tuna.tsinghua.edu.cn/ubuntu jammy-backports InRelease
Hit:4 https://mirrors.tuna.tsinghua.edu.cn/ubuntu jammy-security InRelease
Hit:5 https://download.docker.com/linux/ubuntu jammy InRelease           
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
217 packages can be upgraded. Run 'apt list --upgradable' to see them.
W: https://download.docker.com/linux/ubuntu/dists/jammy/InRelease: Key is stored in legacy trusted.gpg keyring (/etc/apt/trusted.gpg), see the DEPRECATION section in apt-key(8) for details.

6.安装最新版本docker

sudo apt install docker-ce docker-ce-cli containerd.io

注：当询问是否继续时，需要输入“Y”，才可以继续安装

root@gt-ubuntu22-04-cmd-v1-0-32gb-100m:/home/ubuntu/ocr# sudo apt install docker-ce docker-ce-cli containerd.io
Reading package lists... Done
Building dependency tree... Done

......

Do you want to continue? [Y/n] y

......

No containers need to be restarted.

No user sessions are running outdated binaries.

No VM guests are running outdated hypervisor (qemu) binaries on this host.

7.验证docker运行状态

sudo systemctl status docker

如下，看到“Active: active (running)”则表示docker正在运行，只要安装完，docker自动就是运行的状态

root@gt-ubuntu22-04-cmd-v1-0-32gb-100m:/home/ubuntu/ocr# sudo systemctl status docker
● docker.service - Docker Application Container Engine
     Loaded: loaded (/lib/systemd/system/docker.service; enabled; vendor preset: enabled)
     Active: active (running) since Wed 2023-07-26 15:59:21 UTC; 56s ago
TriggeredBy: ● docker.socket
       Docs: https://docs.docker.com
   Main PID: 10753 (dockerd)
      Tasks: 17
     Memory: 27.0M
        CPU: 619ms
     CGroup: /system.slice/docker.service
             └─10753 /usr/bin/dockerd -H fd:// --containerd=/run/containerd/containerd.sock

8.运行Hello world容器

docker container run hello-world

看到“Hello from Docker!”则表示容器运行成功。
在这里插入图片描述
还可通过“docker ps -a ”命令，查看当前已有的容器有哪些，可以看到有一个hello world容器已执行过。（注：这个容器相当于是输出一行命令后就退出了，所以这里的STATUS = Exited）

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