Related to switch user

[singhragvendra503]

I have created a user devops in Ubuntu 22.04 using that I can run podman containers. There are two users devops and ubuntu, ubuntu has super user permission. devops user can't add in sudoers file.
My question is, when I am switch user from ubuntu to devops using

sudo su devops

I can run containers but if I switch user from ubuntu to devops using

su devops

I got a ERROR
ERRO[0000] XDG_RUNTIME_DIR directory "/run/user/1000" is not owned by the current user

[eriksjolund]

Instead of using su it's better to use machinectl or systemd-run

Run podman as another user interactively

$ sudo -i
# machinectl shell --uid=username
Connected to the local host. Press ^] three times within 1s to exit session.
$ podman run --rm -ti docker.io/library/alpine
/ # cat /etc/alpine-release 
3.19.1
/ # 

Run podman as another user noninteractively

# sudo systemd-run \
         --machine=username@ \
         --quiet \
         --user \
         --collect \
         --pipe \
         --wait \
           podman run \
              --rm \
              docker.io/library/alpine \
                  echo hello
hello

As to why not use su see the blog post

Why can't I run rootless Podman containers when I log into a user via sudo or su? https://www.redhat.com/sysadmin/sudo-rootless-podman

See also the tip in troubleshooting.md
Podman run fails with ERRO[0000] XDG_RUNTIME_DIR directory "/run/user/0" is not owned by the current user or Error: creating tmpdir: mkdir /run/user/1000: permission denied.

[singhragvendra503]

I am logging in using sudo machinectl shell --uid=1002 and running the container. Whenever logged out the container stopped.

[eriksjolund]

Probably it will work if you enable linger

sudo loginctl enable-linger 1002

See tip in troubleshooting.md
rootless containers exit once the user session exits