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OK I think it's time. This exposes the `apply-live` functionality
as implicitly stable, but specific to the package install case.
I'd like to add more intelligence to `apply-live` around separating
pure "additions" (as in this case) versus package (file) changes.
The change here doesn't try to do that; the implementation is
incredibly simple, we just have the client chain together the two
distinct transactions.
There's a huge difference between live updates that change
existing things, versus simply adding new packages (files).
The latter is really quite safe, and live layering is one
of the most requested features.
Continuing the momentum to use kola ext tests.
One obvious benefit of this as the porting continues
is that we can share our built test RPMs across
different tests, e.g. we can have a `testdaemon` package
instead of a `test-livefs-service` package.
This stubs out sufficient infrastructure for us to register
as a client and call the Moo API.
A glaring problem here is the lack of extensive `glib::Variant`
bindings; that's covered in the next gtk-rs release.
My real goal was to try porting the `rpmostree-builtin-apply-live.cxx`
code entirely to Rust, but there's more to do to expose the
transaction helper APIs we have.
I'd like to get to the point where we drop the `vmcheck.sh`/`libvm.sh` stuff.
Instead we use kola directly, and write our tests in a way that they
default to run on the target, not on the host because it's *much*
more natural to type e.g. `rpm-ostree upgrade` instead of `vm_rpmostree upgrade`.
We'd done a bit of porting, but a blocker was that a lot of our
tests dynamically generate RPMs and send them over. Instead,
let's generate the RPMs ahead of time in a "build" step, then
they all get passed at once via kola ext data. Add the concept
of multiple repo versions too.
Right now we only generate the one RPM needed for the `layering-local`
test and port it.
Came out of discussion in https://github.com/coreos/rpm-ostree/pull/2581
around some racy code for checking for the live commit object.
The reliability of apply-live depends on the
underlying commits not being garbage collected. Our diff logic
is in terms of ostree commits, not the physical filesystem (this
allows us to make various optimizations too).
Ultimately I think we should drive some of the live-apply
logic into libostree itself; we can more easily have an atomic
state file instead of the two split refs.
(Or perhaps what we should add to ostree is like a refs.d model
where a single atomic file can refer to multiple commits)
For now though let's rework the code here to write refs. We
retain the file in `/run` as just a "stamp file" that signals
that a deployment has had `apply-live` run.
Prep for "Rust-as-main", where I want to build libdnf statically.
And this really completes the "library thinout" story because
now we avoid dragging our *private* `libdnf.so` into the caller's
address space, which can cause potential conflicts if they're
also linking the system one. (Which could easily occur with
something like gnome-software)
All we were using libdnf for (indirectly via libsolv) is comparing
version strings but librpm can already do that for us.
The previous build was GC'd; unfortunately it's very nontrivial
to make this test truly robust over time because FCOS changes;
we might sometimes have an outstanding update, other times might
not etc.
Let's just sanity check the commands; ultimately they're
thin wrappers around just downloading packages so we don't need
deep checks.
This adds support for e.g.:
```
$ rpm-ostree override replace https://bodhi.fedoraproject.org/updates/FEDORA-2020-2908628031
```
This will find the Koji builds from the listed update, download
all the RPMs (that aren't debuginfo) and pass them for overrides
in the same way we support `override replace http://somewebserver/foo.rpm`
now.
We also support directly linking a Koji build:
```
$ rpm-ostree override replace https://koji.fedoraproject.org/koji/buildinfo?buildID=1625029
```
Bodhi has a modern HTTP+JSON API, and the lack of a Koji equivalent
drove me to create https://github.com/cgwalters/koji-sane-json-api
and we currently depend on an instance set up in the OpenShift CI
cluster.
I hope it shouldn't take long to deploy this in Fedora Infra,
but I don't want to block on it.
Also notably this still downloads *all* the other RPMs even
ones that aren't installed. Handling that truly correctly
would require moving this logic to the daemon and core.
All of this functionality is keyed off a `cfg(feature = "fedora-integration")`
that is detected by a Rust `build.rs` which parses the build environment's
`/etc/os-release` for now.
This effectively reverts commit: c8113bde32
We never ended up using it; instead the `rdcore` bits from
`coreos-installer` have the rootfs reprovisioning logic.
This command allows users to cheaply inject configuration files in the
initramfs stage without having to regenerate the whole initramfs (or
even a new OSTree commit). This will be useful for configuring services
involved in bringing up the root block device.
```
$ echo 'hello world' > /etc/foobar
$ rpm-ostree ex initramfs-etc --track /etc/foobar
Staging deployment... done
Run "systemctl reboot" to start a reboot
$ rpm-ostree status
State: idle
Deployments:
ostree://fedora:fedora/x86_64/coreos/testing-devel
Version: 32.20200716.dev.1 (2020-07-16T02:47:29Z)
Commit: 9a817d75bef81b955179be6e602d1e6ae350645b6323231a62ba2ee6e5b9644b
GPGSignature: (unsigned)
InitramfsEtc: /etc/foobar
● ostree://fedora:fedora/x86_64/coreos/testing-devel
Version: 32.20200716.dev.1 (2020-07-16T02:47:29Z)
Commit: 9a817d75bef81b955179be6e602d1e6ae350645b6323231a62ba2ee6e5b9644b
GPGSignature: (unsigned)
$ reboot
(boot into rd.break)
sh-5.0# cat /etc/foobar
hello world
```
See the libostree side of this at:
https://github.com/ostreedev/ostree/pull/2155
Lots more discussions in:
https://github.com/coreos/fedora-coreos-tracker/issues/94Closes: #1930
The latest crypto-policies package changed recently to dynamically set
the policy at install time so that if FIPS is enabled, the selected
backend is `FIPS`:
9b9c9f7378
This doesn't really make sense for us though since the compose server
configuration should be decoupled from the installroot. (More generally,
this also affects e.g. `yum install --installroot`).
Override the script for now so that we always select the `DEFAULT`
policy. We'll discuss with upstream to see what the right solution is
there.
This also works around the fact that rpm-ostree doesn't yet implement
Lua (#749).
Related: https://bugzilla.redhat.com/show_bug.cgi?id=1847454
Resolves: https://github.com/coreos/fedora-coreos-tracker/issues/540
Switch to the "installed" model introduced by:
https://github.com/coreos/coreos-assembler/pull/1441
It's hard to support running tests *both* from the srcdir
and installed; in this case because we have a symlink that needs
to be followed, which kola knows how to do from the srcdir
but not when installed. Let's establish a new convention of
`tests/kolainst`. In our case we follow the symlink manually
for now.
That bit will be cleaned up when we eventually switch entirely
to kola tests.
