flatpak installation gives warning: User flatpak does not exist in password file entry

[Chevek]

Submission type

• [X ] Bug report
• Feature Request

Package name & version you are having issues with or have a request for

flatpak
Package version : 1.12.6-1

Used repositories

Default

Expected behaviour

Install any flatpak without being root and without warning.

Actual behaviour

Give warning on any installation.
e.g. :

On any installation, there is this warning :
Failed to get revokefs-fuse socket from system-helper: User flatpak does not exist in password file entry

Still, the flatpak works :
$ flatpak run org.bzflag.BZFlag

Steps to reproduce the problem

Install flatpak, add flathub repository and try to install any flatpak you want :
$ sudo pacman -S flatpak
$ flatpak remote-add --if-not-exists flathub https://flathub.org/repo/flathub.flatpakrepo
$ flatpak install bzflag

System info link created by Octopi > Tools > SysInfo

…

[Chevek]

This seems to fix the issue:
$ sudo useradd -c "Flatpak Daemon Owner" -d /usr/bin/flatpak -s /bin/false flatpak

[demmm]

Packaging issue, or should be added to:
https://kaosx.us/docs/flatpak/ ?

[Chevek]

Seems to me a packaging issue.

[demmm]

There are two camps on this, one is adding a system user & group flatpak, other is to stop using flatpak as system, but move to as --user instead.
Check that by "flatpak remotes" and see if the option says "system".
To fix it delete the flathub remote "flatpak remote-delete flathub" and add it with the --user flag "flatpak remote-add --user --if-not-exists flathub

I'm inclined to use the latter as the best option and stop users from using flatpak as system. That would mean adjusting the doc & the message on install:
https://github.com/KaOSx/apps/blob/master/flatpak/flatpak.install#L10

[Chevek]

The latter may confuse the user because it contradicts the default flatpak behaviour, which is "unless overridden with the --user or --installation options, this command changes the default system-wide installation." cf. https://docs.flatpak.org/en/latest/flatpak-command-reference.html#flatpak-remote-add
Thus the vast majority of documentation you'll find will assume this behaviour, starting with flathub.org.

[Chevek]

I confirm, adding --user to "flatpak remote-add" remove the warning as well.