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This fixes a longstanding spew of error messages from the initramfs
because we don't have nss-altfiles set up there. Rather than
trying to do it, just do the dance of re-synthesizing `/etc/passwd`
as it traditionally looks around running dracut, the same as we
do for scripts during core layering.
Yes, this is all a mess and hopefully I'll get to sysusers soon...
In FCOS we have a kola test that basically does `rpm -q python`.
It's...a bit silly to spawn a whole VM for this. Ensuring that
some specific packages don't get included has come up in a few
cases.
I think FCOS/RHCOS at least will want to blacklist `dnf` for example.
And as noted above, FCOS could blacklist `python`.
One major benefit of doing this inside rpm-ostree is that one
gets the full "libsolv error message experience" when dependency
resolution fails, e.g. blacklisting `glibc` I get:
```
Problem 79: conflicting requests
- package coreos-installer-systemd-0.1.2-1.fc31.x86_64 requires coreos-installer = 0.1.2-1.fc31, but none of the providers can be installed
- package coreos-installer-0.1.2-1.fc31.x86_64 requires rtld(GNU_HASH), but none of the providers can be installed
- package glibc-2.30-10.fc31.x86_64 is filtered out by exclude filtering
- package glibc-2.30-7.fc31.x86_64 is filtered out by exclude filtering
- package glibc-2.30-8.fc31.x86_64 is filtered out by exclude filtering
- package glibc-2.30-5.fc31.i686 is filtered out by exclude filtering
- package glibc-2.30-5.fc31.x86_64 is filtered out by exclude filtering
- package glibc-2.30-10.fc31.i686 is filtered out by exclude filtering
```
Translate RPM paths under `/var/run` to `/run` automatically; this
quiets down systemd. Since we end up running `systemd-tmpfiles`
a few times in FCOS reducing spew here is particularly valuable.
The bug is really in the packages here but...we don't have an
agile process for fixing them.
Note that for this fix to take effect, if you have a `cache/pkgcache-repo`
you'll need to remove it.
We were basing whether to print the `Upgraded`/`Downgraded` heading on
the iteration count rather than the actual first iteration where a valid
upgrade/downgrade was found. And because of how we print our diff, this
confusingly can make it look like downgrades are part of the same
upgrade section.
Closes: #1821
This is a follow-up hack to #1797 to force libdnf to let us use modular
packages as if they were regular packages until we actually support
modules correctly (#1435).
A repo marked as a modular hotfix means that libdnf doesn't try to
filter out modular RPMs from the repo as it usually does.
Resolves: https://pagure.io/releng/failed-composes/issue/717
Build FCOS and run vmcheck in the same container, since it's only used
for that anyway right now. The main advantage is that we save time
provisioning another container and not having to stash and unstash the
FCOS image.
Also, since the compose tests don't actually need to wait for the FCOS
image, start running them in parallel with the FCOS + vmcheck branch.
Again, a lot going on here, but essentially, we adapt the compose tests
to run either privileged or fully unprivileged via supermin, just like
cosa.
I actually got more than halfway through this initially using `cosa
build` directly for testing. But in the end, we simply need more
flexibility than that. We want to be able to manipulate exactly how
rpm-ostree is called, and cosa is very opinionated about this (and may
also change from under us in the future).
(Another big difference for example is that cosa doesn't care about
non-unified mode, whereas we *need* to have coverage for this until we
fully kill it.)
Really, the most important bit we want from there is the
unprivileged-via-supermin bits. So we copy and adapt that here. One
obvious improvement then is sharing this code more easily (e.g. a
`cosa runasroot` or something?)
However, we still use the FCOS manifest (frozen at a specific tag). It's
a realistic example, and because of the lockfiles and pool, we get good
reproducibility.
This makes it easier to flatten a treefile. To do this, we make having a
workdir optional on the Rust side, and on the C side, just move
`--print-only` handling up front.
The parent of a `Path` of `"foobar"` is actually `""`, because
`parent()` wants to return a slice of its buffer:
https://github.com/rust-lang/rust/issues/36861
Just do a trivial wrapper around it to correctly return `"."` instead.
Hit this when trying to pass a treefile in the working directory.
Let's try to do regular-ish bumps again. Both for fixes and features,
but also so we eat regressions as they come rather than all at once when
we actually need something new there really fast.
Update submodule: libdnf
There's a lot going on here, but essentially:
1. We change the `vmcheck` model so that it always operates on an
immutable base image. It takes that image and dynamically launches a
separate VM for each test using `kola spawn`. This means we can drop
a lot of hacks around re-using the same VMs.
2. Following from 1., `vmoverlay` now takes as input a base image,
overlays the built rpm-ostree bits, then creates a new base image. Of
course, we don't have to do this in CI, because we build FCOS with
the freshly built RPMs (so it uses `SKIP_VMOVERLAY=1`). `vmoverlay`
then will be more for the developer case where one doesn't want to
iterate via `cosa build` to test rpm-ostree changes. I say "will"
because the functionality doesn't exist yet; I'd like to enhance
`cosa dev-overlay` to do this. (Note `vmsync` should still works just
as before too.)
3. `vmcheck` can be run without building the tree first, as
`tests/vmcheck.sh`. The `make vmcheck` target still exists though for
finger compatibility and better meshing with `vmoverlay` in the
developer case.
What's really nice about using kola spawn is that it takes care of a lot
of things for us, such as the qemu command, journal and console
gathering, and SSH.
Similarly to the compose testsuites, we're using parallel here to run
multiple vmcheck tests at once. (On developer laptops, we cap
parallelism at `$(nproc) - 1`).
This is a hack to allow using `inject-pkglist` without having to build
the tree first.
Higher-level, I think we can split this back out again if we have a
`-tests` subpackage where we ship the vmcheck testsuite.
That way, anyone can easily download the latest built RPMs from master
or a specific PR. This isn't a replacement for automated builds in Koji
though since it's not multi-arch.
Also fetch the tags so that the NEVRA derived from `git describe` is
nicer.
This allows replacing the `.` in automatic version increments
with whatever one wants (as long as it's a single ASCII character)
right now.
The specific motivation here is for at least RHEL CoreOS to use
`version-suffix: "-"` so that its versions can become valid
semantic versions.
Related: https://github.com/coreos/rpm-ostree/issues/1954
Rather than giving dracut `cap_mknod` which won't work in
unprivileged scenarios, append a tiny static pre-generated CPIO
blob with `/dev/random` and `/dev/urandom` to the output of
dracut.
This is a hack until dracut does this itself. But the problem
is patches to dracut will take eleven billion years to ship
in RHCOS.
Closes: https://github.com/coreos/rpm-ostree/issues/1950
