Using a metalink or mirrorlist along with the package paths and
checksums allows them to be reliably downloaded even when mirrors are
not all in sync. It will retry with a new mirror until it succeeds, or
has tried all of the mirrors.
The dnf5 library in Fedora 41 still has some issues that prevents us
from using it in osbuild-composer. Switch to using dnf4 on Fedora 41 as
well until these issues are resolved.
The recent change in https://github.com/osbuild/osbuild/pull/1896
removed the dnf dependency, leading to failures in osbuild-mpp with the
following error:
ModuleNotFoundError: No module named 'dnf'
To fix it, add the python3-dnf dependency for the
osbuild-tools package.
Signed-off-by: Renata Ravanelli <rravanel@redhat.com>
This was added years ago in 3c19420b3e.
Back then, we were constructing the initial buildroot using dnf directly
(stages had network access at that point). We reworked this with the
introduction of the rpm stage, sources and an external depsolver. The
dnf stage itself was actually removed in
892342b978. Thus, I think we don't need
to pull dnf anymore, so this commit removes the dependency.
For the DNF4 version, we actually use 'dnf' package and not 'libdnf'.
Fix the SPEC file dependencies and also the check in unit test.
Signed-off-by: Tomáš Hozza <thozza@redhat.com>
osbuild 126 added a new "solver" field in the osbuild-dnf-json
output and osbuild-composer only supports this since 116.
This broke production (sorry!). This commit helps mitigate it.
This moves the dnf and dnf5 code into a new osbuild module called
solver. The dnf specific code is in dnf.py and dnf5 is in dnf5.py
At runtime the osbuild-depsolve-dnf script reads a config file from
/usr/lib/osbuild/solver.json and imports the selected solver. This
currently just contains a 'use_dnf5' bool but can be extended to support
other configuration options or depsolvers.
At build time a config file is selected from tools/solver-dnf.json or
tools/solver-dnf5.json and installed. Currently dnf5 is not installed,
it will be added when dnf5 5.2.1.0 becomes available in rawhide (Fedora
41).
The error messages have been normalized since the top level functions in
osbuild-depsolve-dnf do not know which version of dnf is being used.
On Fedora 40 we switched to dnf5 too early. There is going to be a new
version in Fedora 41 soon, with breaking API changes, so in order to
reduce the number of things we need to support, switch back to using
libdnf on Fedora 40 (and 41 until dnf5 version 5.2.0 is available,
see #1769)
