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This adds infrastructure to the Rust test suite for destructive
tests, and adds a new `transactionality` test which runs
rpm-ostree in a loop (along with `ostree-finalize-staged`) and
repeatedly uses either `kill -9`, `reboot` and `reboot -ff`.
The main goal here is to flush out any "logic errors".
So far I've validated that this passes a lot of cycles
using
```
$ kola run --qemu-image=fastbuild-fedora-coreos-ostree-qemu.qcow2 ext.ostree.destructive-rs.transactionality --debug --multiply 8 --parallel 4
```
a number of times.
I was thinking a bit more recently about the "live" changes
stuff https://github.com/coreos/rpm-ostree/issues/639
(particularly since https://github.com/coreos/rpm-ostree/pull/2060 )
and I realized reading the last debates in that issue that
there's really a much simpler solution; do exactly the same
thing we do for `ostree admin unlock`, except mount it read-only
by default.
Then, anything that wants to modify it does the same thing
libostree does for `/sysroot` and `/boot` as of recently; create
a new mount namespace and do the modifications there.
The advantages of this are numerous. First, we already have
all of the code, it's basically just plumbing through a new
entry in the state enumeration and passing `MS_RDONLY` into
the `mount()` system call.
"live" changes here also naturally don't persist, unlike what
we are currently doing in rpm-ostree.
These allow the `summary` and `summary.sig` files to be cached at a
higher layer (for example, flatpak) between related pull operations (for
example, within a single flatpak transaction). This avoids
re-downloading `summary.sig` multiple times throughout a transaction,
which increases the transaction’s latency and introduces the possibility
for inconsistency between parts of the transaction if the server changes
its `summary` file part-way through.
In particular, this should speed up flatpak transactions on machines
with high latency network connections, where network round trips have a
high impact on the latency of an overall operation.
Signed-off-by: Philip Withnall <withnall@endlessm.com>
Regression from
5d7f897908
I'm not sure how (or if) this passed before, the job logs have
been GC'd.
This is a bit confusing but basically right now ostree/rpm-ostree's
CI jobs don't use `/srv/fcos` - it might make sense to port
these to `fcosBuild` but that needs investigation.
We were committing the whole tempdir, which seems to fail
in Travis because the GPG agent Unix domain socket ends up there too,
and ostree refuses to commit sockets.
This is useful for ostree log on client side where often not the
full history of a branch is available. It is also helpful for
ostree show to show if a particular commit has a parent.
- Use `REV` instead of `REF` in places where we meant it.
- Fix `commit --parent` actually taking a commit checksum and not a ref.
- Fix `ostree admin switch` using `REF` instead of `REFSPEC`.
The default `_NPROCESSORS_ONLN` heuristic we have isn't cgroups aware.
So it thinks it has e.g. 40 CPUs when running in a k8s pod. This can
then blow through our allocated resource limits.
Declare some modest amount of RAM and CPU resources and override `make`
parallelism.
This matches what rpm-ostree now does in
https://github.com/coreos/rpm-ostree/pull/2155.
The "new style" code generally avoids `goto err` because it conflicts
with `__attribute__((cleanup))`. This fixes a compiler warning.
Signed-off-by: Frédéric Danis <frederic.danis@collabora.com>
If `glnx_make_lock_file` falls back to `flock`, on NFS this uses POSIX
locks (`F_SETLK`). As such, we need to be able to handle `EACCES` as
well as `EAGAIN` (see `fnctl(2)`).
I think this is what coreos-ostree-importer has been hitting, which runs
on RHEL7 in the Fedora infra and does locking over an NFS share where
multiple apps could concurrently pull things into the repo.
This came in with 5af403be0c but
was never implemented.
I noticed this now because the Rust ostree bindings generate a
wrapper for it which the linker tries to use.
