Commit Graph

35 Commits

Author SHA1 Message Date
Jonathan Lebon
c7a9c3b1dd Rework vmcheck to use kola spawn, move off of PAPR
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`).
2019-12-13 19:18:30 +01:00
Jonathan Lebon
035ac2eaa6 tests/vmcheck: Fully drop python 3 requirement
Drop the use of Ansible everywhere. In the few cases where we really
Python, just spawn a container instead.

This is required to be able to hack on Fedora CoreOS.

Closes: #1850
Approved by: jlebon
2019-06-10 15:36:06 +00:00
Jonathan Lebon
206ae24d4e tests: Bump to Python 3 only
This bumps the requirement on the controlling host to Python 3 only.
It also bumps the requirement on the target host to Python 3 as well
since FCOS doesn't ship Python 2 right now.

Though we'll need to eventually drop all Python usage anyway, but at
least let's get tests passing on FCOS first. (See related previous
patch).

Closes: #1828
Approved by: cgwalters
2019-05-08 19:02:32 +00:00
Jonathan Lebon
078268d4d3 libpriv: Add more error-prefixing in sanity checks
Currently tracing through an error around that area, and this would've
helped.

Closes: #1787
Approved by: cgwalters
2019-03-19 12:19:38 +00:00
Jonathan Lebon
ed2fefad85 Move reset out of experimental
This is relatively uncontroversial functionality that has already proved
useful when helping folks debug their stuff. Let's promote it to the
stable interface.

Closes: #1682
Approved by: rfairley
2018-11-22 20:47:50 +00:00
Jonathan Lebon
6583a557ae app/livefs: Require --i-like-danger switch
We've had multiple reports by now of folks using plain `ex livefs` and
getting their bootloader wrecked:

https://github.com/projectatomic/rpm-ostree/issues/1495
https://github.com/projectatomic/rpm-ostree/issues/1504
https://github.com/ostreedev/ostree/issues/1459

Let's require a scary switch for now to emphasize this.

Closes: #1622
Approved by: cgwalters
2018-10-17 20:10:11 +00:00
Jonathan Lebon
807f21788e Hard require staging
This removes the logic around supporting opting out of the staging
feature. We don't want to support multiple configurations here, and at
this point, staging should be considered stable.

Closes: #1546
Approved by: cgwalters
2018-09-11 20:55:48 +00:00
Colin Walters
44b39a7340 livefs: Require deployment staging
Staging fixes the `/etc` bug for livefs.  There's actually more
we could do here around taking advantage of staging for livefs;
for example, I think once the livefs is complete, we could just delete
the staged deployment.  And then we don't need to render on the next
boot the live status, etc.

Anyways, all that can come in the future.  This is prep for
enabling staging by default.

Closes: #1430
Approved by: jlebon
2018-08-20 20:32:00 +00:00
Colin Walters
1b4a73f071 tests: Make two more tests compatible with deployment staging
Unlike the kernel args one, these two were simple.

Closes: #1458
Approved by: jlebon
2018-07-21 13:58:21 +00:00
Colin Walters
1c8c755e81 tests: Split test-basic into misc-{1,2}
Our test suite originated when package layering was still being
developed, but now that that's mature, the logic where layering
tests are distinct makes less sense.

The `basic` test had grown to really be a collection of many
miscellaneous things.  Let's make that more explicit.  Further,
let's avoid having each test suite grow too large; when a single
test fails we don't have an easy way to rerun just that test,
so a crude way to have faster local iteration is to split into groups.

My plan is to reintroduce a `basic` test that covers the basics
of all functionality - update, deploy, layering, etc.  The advanced/corner
cases of layering like the `rm -rf /` test would still live in a
`test-layering.sh` or so.

Closes: #1336
Approved by: jlebon
2018-04-16 17:53:20 +00:00
Colin Walters
defa1dc38a core/scripts: Support /var/lib/rpm-state
I was trying a `--ex-unified-core` compose of FAW, and things fell over
on `urw-base35-fonts` which does a dance of setting a stamp file in
`%post` and checking it in `%posttrans`.

This whole pattern should be considered deprecated by file triggers. But let's
support it for now.

Note there's a lot of parameter passing as we need a single directory which is
held across multiple script invocations.

Closes: #1319
Approved by: jlebon
2018-03-28 18:37:17 +00:00
Colin Walters
48e0cac9fb scripts: Ignore %verifyscript
It obviously shouldn't block the ability to install, and anyways
the single use in `ksh` is not compelling.  If someone comes up with
one we can revisit supporting this.

Closes: https://github.com/projectatomic/rpm-ostree/issues/1216

Closes: #1218
Approved by: jlebon
2018-01-19 15:32:09 +00:00
Jonathan Lebon
f320478cd6 tests/vmcheck: expand a bit more --copyup tests
Check that appending actually worked and check that editing a copied-up
file from a required package works.

Closes: #1203
Approved by: cgwalters
2018-01-12 19:48:32 +00:00
Colin Walters
84f0b017d9 bwrap: Use rofiles-fuse --copyup by default
This fixes a large swath of compatibility issues, for the same reasons as
overlayfs makes a lot of things Just Work.  The ugly part of course is
doing hidden copyups inside the filesystem.

We've gone quite a long time with the "pure rofiles" mode, and have made changes
to various bits of userspace to be compatible with it. But what finally made me
give up on that is glibc's locale-archive; there's a patch for it that
is stalled, but even if it was applied we would still need to work with
older glibc.

This issue comes to the fore in unified core 🌐 mode, as without this
we won't get a correct locale archive.

Closes: #1171
Approved by: jlebon
2018-01-09 15:36:08 +00:00
Colin Walters
f872ecdd13 scripts: Make use of SYSTEMD_OFFLINE environment variable
More info at:
https://github.com/systemd/systemd/pull/7631 AKA
"systemctl,verbs: Introduce SYSTEMD_OFFLINE environment variable"
f38951a628
and in the docs added.

Closes: #1157
Approved by: jlebon
2017-12-15 17:05:37 +00:00
Colin Walters
95b423afe9 Add cancel verb and DBus API
Right now the fact that one can only cancel via `Ctrl-C` of an existing client
process is rather frustrating if for example one's ssh connection to a machine
drops. Now, upon reconnecting, one can easily `rpm-ostree cancel` a hung update
or whatever rather than doing the more forcible `systemctl stop rpm-ostreed`
(which is safe of course, unless livefs is involved).

Closes: #1019
Approved by: jlebon
2017-12-07 20:12:52 +00:00
Colin Walters
90f9fe80e4 scripts: Drop most capabilities
Note this PR requires [bubblewrap 0.2.0](https://github.com/projectatomic/bubblewrap/releases/tag/v0.2.0).

Change our bwrap invocations drop truly dangerous capabilities like
`cap_sys_admin` and `cap_sys_module` just like Docker does today. Because of the
popularity of Docker, we can be pretty sure that most RPM scripts should have
adapted to this (although a problematic area here is that traditional librpm
doesn't actually error out if scripts fail).

There are two reasons to do this:

 - We want "offline" updates by default; updates shouldn't affect the
   running system.  If we prepare the new root in the background, a
   %post shouldn't restart a service for example.  We already "handle"
   this by making `systemctl` a symlink to `/bin/true`, but this approach
   also shuts off `%post`s that do e.g. `insmod`.
 - Protection against accidental system damage

Closes: #1099
Approved by: jlebon
2017-12-05 02:54:23 +00:00
Jonathan Lebon
5867d2a2af vmcheck: use systemd-run for running post-that-hangs
Just taking what I learned from #1035 and applying it here. What's nice
about this is that there's no cleanup needed. Once the process is killed
(or worst case, we reboot the VM), there's no traces left at all.

Also added a few extra "ok" outputs.

Closes: #1043
Approved by: cgwalters
2017-10-06 20:17:36 +00:00
Colin Walters
3f367dbce2 scripts+bwrap: Make script execution cancellable
Prep for implementing `rpm-ostree cancel`, but this works with the way we handle
`Ctrl-C` interactively on a client as well. Being able to cancel a script
execution is quite nice; some of them are expensive, and having one loop forever
has been known to happen.

Closes: #1025
Approved by: jlebon
2017-10-03 14:24:07 +00:00
Jonathan Lebon
8b1001c9b5 tests/vmcheck: turn on strict bash mode
Closes: #1032
Approved by: cgwalters
2017-10-02 20:36:07 +00:00
Jonathan Lebon
167fd4c1dd libpriv/scripts: use rofiles-fuse on /etc too
We were directly bind mounting the checked out `/usr/etc` onto `/etc`
which was exposing us to corruption from scriptlets. Since we already
have an rofiles-fuse mount for `/usr`, let's just re-use its `etc/`
subdir and bind mount that instead.

Closes: #1003
Approved by: cgwalters
2017-09-24 13:11:21 +00:00
Colin Walters
150de0087e scripts: Support overriding lua, use for glibc-all-langpacks
Today in Fedora the `glibc-all-langpacks.posttrans` is implemented
in lua, for no good reason.  See:
https://bugzilla.redhat.com/show_bug.cgi?id=1367585

Since that's stalled out, let's add support for overrides.  This
is obviously a much bigger step with more long term maintenance
implications over our current "ignore scripts" list.  But we can't
block either.

This is needed for unified core work:
https://github.com/projectatomic/rpm-ostree/issues/729

(We also override `fedora-release-atomichost` but I'll likely
 submit a patch for that upstream)

Closes: #980
Approved by: jlebon
2017-09-08 18:02:22 +00:00
Colin Walters
c093a587a2 tests: Add a test case for lua scripts
This is currently unsupported, let's add a test case. Prep for support for
script overrides.

Closes: #973
Approved by: jlebon
2017-09-07 14:09:47 +00:00
Colin Walters
3047513509 core: Run %post before %posttrans
While working on unified core and the Fedora Atomic Host content set, I hit a
dependency between `docker.posttrans` which tries to read `/etc/os-release`, and
`fedora-release-atomichost.post` which creates that symlink.

It seems best practice to me to run `%post`s strictly before
`%posttrans`; we're not likely to do parallelization anytime
soon anyways.

While here I cleaned things up by having an enum for the script kind,
rather than multiple functions, otherwise we would have had another
wrapper in core.c.

Closes: #963
Approved by: jlebon
2017-08-30 15:50:09 +00:00
Colin Walters
0d4d6be94f Implement file triggers (%transfiletriggerin) for layered pkgs
File triggers are a post-RHEL7 thing; more information at
http://rpm.org/user_doc/file_triggers.html

There are two notable users I've been testing this with;
`glib2` and `vagrant`.  The `vagrant` one is more immediately urgent,
since it makes `vagrant-libvirt` work, which I currently rely on
for my workstation dev.

I've tested things successfully with `vagrant`, and I did verify that we run the
`glib2` ones when doing `rpm-ostree ex container`.

Long term, more transaction file triggers are likely to live in
"base" packages like `glib2`.  We don't implement those yet, but
extending this to do that shouldn't be too hard.

There was *significant* what I'd call reverse engineering of the
implementation in librpm.  The file triggers code there is spread out
and abstracted in a few different places in the code.  I found
trying to understand what header values were involved to be quite
tricky.

There are some corner cases like multiple patterns that I *think*
this does correctly, but could use more validation.  The main
question I had was - is it required that the patterns for e.g.
`%transfiletriggerin` and `%transfiletriggerun` be identical?

Closes: https://github.com/projectatomic/rpm-ostree/issues/648

Closes: #869
Approved by: jlebon
2017-07-27 20:58:09 +00:00
Colin Walters
34b5a004a8 daemon: Add a sanitycheck(/bin/true) before we deploy a tree
This is a followup to https://github.com/projectatomic/rpm-ostree/pull/888
but more comprehensive; in the layering case, the sanitycheck runs
after all the `%posttrans` scripts, so we'll get a consistent error message
for the `rm -rf /` test.

We also do the sanitycheck for the "pure ostree" case, as well as cases
where we didn't actually layer packages (including `ex override remove` as
well as simply regenerating an initrd).

There's obviously a lot more we could do in a sanitycheck; as I say in the
comment it's tempting to consider trying to boot systemd (in a fully volatile
config), but for now let's do this. In the end of course the admin has rollback
too.

Closes: #892
Approved by: jlebon
2017-07-27 17:58:58 +00:00
Colin Walters
2f3ca1bc8e tests: Add a test case for a %post that does rm -rf /
I was thinking today about our script handling, and I realized
an excellent way to showcase the advancement rpm-ostree makes
over traditional package managers is the fact that we survive a
`%post` script that does `rm -rf /`!

See e.g. https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=858521

It's been this way ever since we first implemented package layering;
the fact that we construct a new root and use bubblewrap to sandbox
makes us very resilient to this type of thing.

But, let's add a test case for this to be sure we preserve this behavior; for
example, if in the future we for some reason we decide to leak some host state
into the scripts.

Closes: #888
Approved by: jlebon
2017-07-21 14:45:30 +00:00
Colin Walters
1f3ebba982 scripts: Honor the -e flag for scripts
This is required for glibc-all-langpacks at least:
https://bugzilla.redhat.com/show_bug.cgi?id=1367585

Otherwise, its usage is...extraordinarily rare. In fact looking at a snapshot of
`rpm-specs-20170518.tar.xz` from Fedora, the only other use is in
`postfix.spec`, and it appears bogus (the value is already expanded at build
time).

But the glibc case is special, as the value of `install_langs` is indeed
potentially dynamic per system.

Closes: #873
Approved by: jlebon
2017-07-18 19:21:15 +00:00
Colin Walters
14431f7f09 lib/scripts: Handle script interpreters
Seen in the wild with `vagrant`'s use of `%post -p /usr/bin/ruby`. This was a
very easy fix, and actually makes the code a little bit nicer, as we no longer
need to explicitly make the script executable, since we now pass it as
`argv[1]`, the same way librpm does. That in turn would make it possible to fix
the TODO and use `bwrap --file`, but that can come later.

Closes: https://github.com/projectatomic/rpm-ostree/issues/856

Closes: #858
Approved by: jlebon
2017-07-04 15:51:20 +00:00
Jonathan Lebon
2b547c2d0a tests: transition to build_rpm
Nuke all the previous goop that was used to create RPMs at `make check`
time and transition all the tests to use the new `build_rpm` function.
It definitely feels cleaner to use. It's also really nice to have the
spec live in the same file as the test that uses it.

Closes: #854
Approved by: cgwalters
2017-06-29 16:16:54 +00:00
Colin Walters
1977e3cfba scripts: Unlink our temporary post scripts
I just happened to do an `ls /usr` on my workstation. Sigh 😣

Closes: #822
Approved by: jlebon
2017-06-08 15:55:57 +00:00
Colin Walters
22048b25a7 scripts: Use tmpfs for /var/tmp, not the host's /tmp
We don't want to expose the host's `/tmp` since that means scripts could
potentially find things like the X11 socket or whatever.

To debug things better, add a quick bash script to run bwrap like the C code
does. Perhaps down the line we can add `rpm-ostree internals run-bwrap` or so.

Closes: #647
Approved by: jlebon
2017-02-28 23:37:15 +00:00
Colin Walters
59f34e8a03 tests: Disable ASAN leak checks
Right now we're far from leak free, and I want to use ASAN
as a sanity checker, not a leak checker.

Closes: #576
Approved by: jlebon
2017-01-18 16:52:46 +00:00
Colin Walters
d3bf60d373 tests: Add a pkg with rofiles violation that should fail
To ensure we don't accidentally allow mutations.

Closes: #560
Approved by: jlebon
2017-01-11 18:39:25 +00:00
Jonathan Lebon
accd2b9f6f vmcheck: add a test for RPM scripts
Thought it'd be fun to write a test for verifying proper handling of
scriptlets during package layering. There's obviously a lot more that
could go in here (patches welcome!), but it's a start.

Closes: #434
Approved by: cgwalters
2016-08-17 21:28:01 +00:00