集装箱

Podman：安装

安装Podman，这是容器管理工具。
可以使用Docker Cli相同的易用性，Podman不需要特定的Service Daemon。

[1]

安装Podman。

[root@dlp ~]# dnf -y install podman

[2]	下载官方图像并创建一个容器，并在容器内输出单词[欢迎来到Podman World]。

# download the official image
[root@dlp ~]# podman pull fedora 
Resolved "fedora" as an alias (/etc/containers/registries.conf.d/000-shortnames.conf)
Trying to pull registry.fedoraproject.org/fedora:latest...
Getting image source signatures
.....
.....
Writing manifest to image destination
Storing signatures
1b52edb0818147bea39780625ec01ab46944284acf16d8bcfa4055f8a854a9f5

# run echo inside a container
[root@dlp ~]# podman run fedora /bin/echo "Welcome to the Podman World" 
Welcome to the Podman World

[3]	使用如下所示的[i]和[t]选项连接到容器的交互式会话。 如果从容器会话[退出]，容器的过程将结束。

[root@dlp ~]# podman run -it fedora /bin/bash 
[root@c466d78a528d /]#     # connected
[root@c466d78a528d /]# uname -a 
Linux c466d78a528d 5.14.10-300.fc35.x86_64 #1 SMP Thu Oct 7 20:48:44 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux
[root@c466d78a528d /]# exit 
exit
[root@dlp ~]#     # come back

[4]	如果您想将容器作为守护进程运行，请添加[d]选项。

[root@dlp ~]# podman run -itd fedora /bin/bash 
0c5954f2e21190f86c892de6e256951c1d5576b5d2aa00be6b799778709f56c9

# show podman proceses
[root@dlp ~]# podman ps 
CONTAINER ID  IMAGE                                     COMMAND     CREATED         STATUS             PORTS       NAMES
0c5954f2e211  registry.fedoraproject.org/fedora:latest  /bin/bash   11 seconds ago  Up 11 seconds ago              funny_jang

# attach to container session
[root@dlp ~]# podman exec -it 0c5954f2e211 /bin/bash 
[root@0c5954f2e211 /]#     # connected
[root@0c5954f2e211 /]# exit
# stop container process (if force stop, specify [kill])
[root@dlp ~]# podman stop 0c5954f2e211 
[root@dlp ~]# podman ps 
CONTAINER ID  IMAGE   COMMAND  CREATED  STATUS  PORTS   NAMES