On 2024-02-21 09:22, Christian Kastner wrote:
> On 2024-02-21 08:02, Johannes Schauer Marin Rodrigues wrote:
>> is this a duplicate of #1061388?
>
> I *think* so, but I'm not sure.
>
> The cause definitely seems to be the same: on the host, prior to opening
> the chroot, $HOME is set to /sbuild-nonexistent, which triggers these
> two bugs.
>
> I'm not sure because I don't know if the $HOME thing above is buggy ,or
> it's correct (though strict) and autopkgtest-build-podman, incus, or
> something else needs fixing.
>
> For example, in #1061388, a possible fix in incus is mentioned.
>
> From my current understanding, this wouldn't work for podman, because
> its attempted use of $HOME/.config/local/*.conf is not just legitimate,
> I'd actually call it required.
I'm happy to say that I've found a workaround.
podman needs $HOME for runtime configuration and storage location, but
$HOME cannot be used even when put in ENVIRONMENT_FILTER.
However: podman also looks into the XDG_ directories, which *can* be
added to ENVIRONMENT_FILTER.
So by
(1) adding
XDG_CACHE_HOME
XDG_CONFIG_HOME
XDG_DATA_HOME
to $environment_filter in .sbuildrc, and
(2) assuming that one has created a suitable container image with
autopkgtest-build-podman,
(3) one can run an autopkgtest with the podman backend as follows:
$ export XDG_DATA_HOME="${XDG_DATA_HOME:-$HOME/.local/share}"
$ export XDG_CONFIG_HOME="${XDG_CONFIG_HOME:-$HOME/.config}"
$ export XDG_CACHE_HOME="${XDG_CACHE_HOME:-$HOME/.cache}"
$ sbuild \
--chroot-mode=autopkgtest \
--autopkgtest-virt-server=podman \
--autopkgtest-virt-server-opt=<image-tag> \
--purge-deps=never \
--apt-update --apt-upgrade \
--dist <dist> \
<...>
If not for one missing variable->path mapping, one could even explicitly
set podman-specific variables, which would make integration much easier
because they could not affect any other part of sbuild.
