Commit Graph

12 Commits

Author SHA1 Message Date
Colin Walters
e41a8ab26f Add support for wrapping binaries (rpm, dracut, grubby)
We need to be friendlier to people who are transitioning from
"traditional" yum managed systems.  This patchset starts to lay
out the groundwork for supporting "intercepting" binaries that
are in the tree.

For backwards compatibility, this feature is disabled by default,
to enable it, one can add `cliwrap: true` to the manifest.

To start with for example, we wrap `/usr/bin/rpm` and cause it
to drop privileges.  This way it can't corrupt anything; we're
not just relying on the read-only bind mount.  For example nothing
will accidentally get written to `/var/lib/rpm`.

Now a tricky thing with this one is we *do* want it to write if
we're in an unlocked state.

There are various other examples of binaries we want to intercept,
among them:

 - `grubby` -> `rpm-ostree kargs`
 - `dracut` -> `rpm-ostree initramfs`
 - `yum` -> well...we'll talk about that later
2020-04-15 16:22:57 +02:00
Colin Walters
770856d018 tests: Start converting some bits into kola ext framework
Start the ball rolling on converting some of our tests into
the coreos-assembler/kola framework:
d940420b78/mantle/kola/README-kola-ext.md

The nondestructive ones are easy.
2020-04-09 23:07:45 +02:00
Jonathan Lebon
c6e5e80d94 vmcheck: Work around read-only /sysroot
We need to adapt some of our tests here which assume that `/sysroot` is
writable. However, in FCOS this is no longer the case now that we enable
`sysroot.readonly`.

We only remount rw for the couple of operations that need it so that we
still retain coverage for the ro path everywhere else.
2020-03-19 16:24:04 +01:00
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
45623a9b54 tests/vmcheck: Fix test-misc-1.sh syntax
The `EOF` needs to be alone on a line to be valid. The way to redirect
the output is unintuitively to do it at the beginning of the line
instead.
2019-10-08 14:10:53 -07:00
Colin Walters
c8113bde32 Add hidden coreos-rootfs seal command
All this does is put the immutable bit on the target directory.
The intention is to replace this bit to start:
8b205bfbb9/src/create_disk.sh (L229)

However, the real goal here is to add code in this file
to handle redeploying the rootfs for Fedora CoreOS which
combines OSTree+Ignition:
https://github.com/coreos/fedora-coreos-tracker/issues/94

Basically doing this in proper Rust is going to be a lot
nicer than shell script in dracut modules.  Among other
details, coreutils `mv` doesn't seem to do the right thing
for SELinux labels when policy isn't loaded.
2019-10-04 08:03:03 -07:00
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
d113b6a913 app/status: Make --json output pretty JSON
Yes, it's mostly for machines, but in practice it's super useful for
humans to look at esp. when debugging.

Closes: #1828
Approved by: cgwalters
2019-05-08 19:02:32 +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
Micah Abbott
bce966a981 vmcheck/misc-1: skip the overlay check when needed
It's possible to run the `vmcheck` tests against an existing host that
has `rpm-ostree` already present.  We don't overlay the built binaries
in this situation, so we should not check for the presence of the
overlay in the commit meta.

Closes: #1555
Approved by: cgwalters
2018-09-12 14:48:02 +00:00
Jonathan Lebon
4ccad2f64b app/status: Tweak output with --booted
Fix `--booted` was printing an extra line after `Deployments:`. While
we're there, also update the section name to `BootedDeployment:` in that
case to be more correct. (We're not printing all the deployments, only
the booted deployment.)

Closes: #1503
Approved by: cgwalters
2018-08-14 12:32:50 +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