podman

配置加速器（最新版的配置方法）

[root@ming2 containers]# vim registries.conf
[root@ming2 containers]# cat registries.conf
unqualified-search-registries = ["docker.io"]

[[registry]]
prefix = ""
location = "https://8v1ihtvi.mirror.aliyuncs.com"

老版本则为

[registries.search]
registries = [‘docker.io‘]
location = "mirrors.tuna.tsinghua.edu.cn/"

[registries.insecure]
registries = []

[registries.block]
registries = []

　拉取镜像

[root@ming2 containers]# podman pull nginx
Trying to pull docker.io/nginx:latest...Getting image source
Copying blob 45b42c59be33: 25.84 MiB / 25.84 MiB [==========
Copying blob 8acc495f1d91: 25.34 MiB / 25.34 MiB [==========
Copying blob ec3bd7de90d7: 599 B / 599 B [==================
Copying blob 19e2441aeeab: 894 B / 894 B [==================
Copying blob f5a38c5f8d4e: 666 B / 666 B [==================
Copying blob 83500d851118: 1.38 KiB / 1.38 KiB [============
Copying config 35c43ace9216: 7.55 KiB / 7.55 KiB [==========
Writing manifest to image destination
Storing signatures
35c43ace9216212c0f0e546a65eec93fa9fc8e96b25880ee222b7ed2ca1

登入普通用户

创建用户跟组

uid=994(wangming) gid=991(wangming) 组=991(wangming)
[root@ming2 ~]# userdel wangming
[root@ming2 ~]# useradd wm
[root@ming2 ~]# su - wm
[wm@ming2 ~]$ ls
[wm@ming2 ~]$ pwd
/home/wm

查询已启动容器

[wm@ming2 ~]$ podman ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
拉取容器
[wm@ming2 ~]$ podman pull nginx
[wm@ming2 ~]$ podman images
REPOSITORY                TAG      IMAGE ID       CREATED       SIZE
docker.io/library/nginx   latest   35c43ace9216   2 weeks ago   137 MB、
拉取并启动busybox
[wm@ming2 ~]$ podman run -it --rm busybox /bin/sh
Trying to pull docker.io/busybox:latest...Getting image source signatures
Copying blob 8b3d7e226fab: 746.79 KiB / 746.79 KiB [===] 3s
Copying config a9d583973f65: 1.42 KiB / 1.42 KiB [=====] 0s
Writing manifest to image destination
Storing signatures
/ # 
[wm@ming2 ~]$ podman ps
CONTAINER ID  IMAGE                             COMMAND  CREATED        STATUS            PORTS  NAMES
22e5631fe0e7  docker.io/library/busybox:latest  /bin/sh  2 minutes ago  Up 2 minutes ago         loving_wilson
不等入查看容器操作的内容
[wm@ming2 ~]$ podman attach 510b69c7bd27 （接容器id）
查看最新启动的容器信息
[wm@ming2 ~]$ podman inspect -l
查看容器的top信息
[wm@ming2 ~]$ podman top sharp_swartz 
USER    PID   PPID   %CPU    ELAPSED         TTY     TIME   COMMAND
root    1     0      0.000   21.286676886s   pts/0   0s     nginx: master process nginx -g daemon off; 
nginx   30    1      0.000   21.287218883s   pts/0   0s     nginx: worker process
删除一个最新的容器 
[wm@ming2 ~]$ podman run -d nginx
6df2d545b2ed7a707cac544f424fa9f2bdc553f6b2cb82b13e4638ff1ff5dbf5
[wm@ming2 ~]$ podman ps
CONTAINER ID  IMAGE                           COMMAND               CREATED        STATUS            PORTS  NAMES
6df2d545b2ed  docker.io/library/nginx:latest  /docker-entrypoin...  4 seconds ago  Up 4 seconds ago         stoic_bassi
[wm@ming2 ~]$ podman rm -f --latest 
6df2d545b2ed7a707cac544f424fa9f2bdc553f6b2cb82b13e4638ff1ff5dbf5
[wm@ming2 ~]$ podman ps
CONTAINER ID  IMAGE  COMMAND  CREATED  STATUS  PORTS  NAMES

每个容器的uuid的范围，每个一用户的有65536个值
[root@ming2 containers]# cat /etc/subuid
wm:100000:65536