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We've long struggled with semantics for `/var`. Our stance of
"/var should start out empty and be managed by the OS" is a strict
one, that pushes things closer to the original systemd upstream
ideal of the "OS state is in /usr".
However...well, a few things. First, we had some legacy bits
here which were always populating the deployment `/var`. I don't
think we need that if systemd is in use, so detect if the tree
has `usr/lib/tmpfiles.d`, and don't create that stuff at
`ostree admin stateroot-init` time if so.
Building on that then, we have the stateroot `var` starting out
actually empty.
When we do a deployment, if the stateroot `var` is empty,
make a copy (reflink if possible of course) of the commit's `/var`
into it.
This matches the semantics that Docker created with volumes,
and this is sufficiently simple and easy to explain that I think
it's closer to the right thing to do.
Crucially...it's just really handy to have some pre-existing
directories in `/var` in container images, because Docker (and podman/kube/etc)
don't run systemd and hence don't run `tmpfiles.d` on startup.
I really hit on the fact that we need `/var/tmp` in our container
images by default for example.
So there's still some overlap here with e.g. `/usr/lib/tmpfiles.d/var.conf`
as shipped by systemd, but that's fine - they don't actually conflict
per se.
I want to try to get away from the "repository global" configuration
in the repo config.
A major problem is that there's not an obvious way to configure
it as part of an ostree commit/container build - it needs
to be managed "out of band".
With this change, we parse the `usr/lib/ostree/prepare-root.conf`
in the deployment root, and if composefs is enabled there,
then we honor it.
We do still honor `ex-integrity.composefs` but that I think
we can schedule to remove.
In preparation for support for a transient `/etc`:
https://github.com/ostreedev/ostree/issues/2868
particularly in combination with composefs.
Basically it's just much more elegant if we can directly mount
an overlayfs on the *empty* `etc` directory, using `usr/etc` as
the lower.
In the composefs case, we'd have to mount the composefs overlayfs
itself writable (and call `mkdir`) *just* so we can make that
empty `etc` directory which is ugly.
See https://github.com/ostreedev/ostree/issues/1593
Basically this makes it easier for people packaging, as the trivial-httpd
is only for tests, and this way the binary will live with the tests.
Also at this point nothing should depend on `ostree trivial-httpd`.
Set a few environment variables during tests to ensure fake GIO backends
are used. This is particularly important with the soup fetcher backend
as it can cause strange test errors in containerized test environments.
Upstream soup has been setting these 3 environment variables for their
tests since 2015.
The only other way to get the remote ref revision from the CLI is to
scrape the output of `ostree remote summary` or pull the commit. The
revision is already there in the summary's ref map, so might as well add
an option to show it.
This was only there to reproduce a bug we hit long ago
with bootloader file ordering. We're extremely unlikely
to reintroduce such a bug, and it's not worth carrying around
this code.
Introduces an intermediate format for overlayfs storage, where
.wh-ostree. prefixed files will be converted into char 0:0
whiteout devices used by overlayfs to mark deletions across layers.
The CI scripts now uses a volume for the scratch directories
previously in /var/tmp otherwise we cannot create whiteout
devices into an overlayfs mounted filesystem.
Related-Issue: #2712
This is a follow up to
0ced9fde76
"sysroot: Support /boot on root or as seperate filesystem for syslinux and u-boot"
What we should have done at the time is changed our bootloader entries
to be prefixed with `/boot`. This means that the GRUB2 BLS support
will Just Work.
For now, I'm making this option default to off out of a lot of
conservatism. I think in the future we should flip this on by default.
update all existing deployments in place
Example:
$ sudo ostree admin kargs edit-in-place --append-if-missing=rw
See https://github.com/ostreedev/ostree/issues/2617
This will not add duplicate key, if there is `TESTARG=VAL1` in the
kernel arguments, `--append-if-missing=TESTARG=VAL2` will be ignored.
This adds some logic to detect and dispatch unknown subcommands to
extensions available in `$PATH`. Additional commands can be
implemented by adding relevant `ostree-$verb` binaries to the system.
As an example, if a `/usr/bin/ostree-extcommand` extension is provided,
the execution of `ostree extcommand --help` will be dispatched to that
as `ostree-extcommand extcommand --help`.
We have a bunch of APIs to do GPG verification of a commit,
but that doesn't generalize to signapi. Further, they
require the caller to check the signature status explicitly
which seems like a trap.
This much higher level API works with both GPG and signapi.
The intention is to use this in things that are doing "external
pulls" like the ostree-ext tar import support. There we will
get the commitmeta from the tarball and we want to verify it
at the same time we import the commit.
As pointed out in the original review, `gpg-list-keys` fits better
alongside the existing `gpg-import`.
Changes were done with:
```
git grep -l list-gpg-keys | xargs sed -i 's/list-gpg-keys/gpg-list-keys/'
for src in $(git ls-files '*list-gpg-keys*'); do
dst=${src/list-gpg-keys/gpg-list-keys}
git mv "$src" "$dst"
done
```
This provides a wrapper for the `ostree_repo_remote_get_gpg_keys`
function to show the GPG keys associated with a remote. This is
particularly useful for validating that GPG key updates have been
applied. Tests are added, which checks the
`ostree_repo_remote_get_gpg_keys` API by extension.
Ideally in the future we change more of our unit tests to
support running installed; we've tried this in the past with
https://wiki.gnome.org/Initiatives/GnomeGoals/InstalledTests
I'd like to pick that back up again. This takes a step
towards that by having our Rust tests.
To make this even easier, add a `tests/run-installed`
which runs the installed tests (uninstalled, confusingly
but conveniently for now).
It was added for the collections bits, but we made that stable.
It's now just cruft and we're very unlikely to reuse the infrastructure
again.
Motivated by a unit test failure when running from a tarball:
https://github.com/ostreedev/ostree/issues/2313
This makes it testable, and increases its test coverage too 100% of
lines, as measured by `make coverage`.
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
This test would have actually passed before the summary file caching
changes (in the previous few commits) were added, as the `summary.sig`
essentially acted as the ETag for the summary file, and itself wasn’t
updated on disk if it didn’t change when querying the server.
Actually testing that the HTTP caching headers are working to reduce
HTTP traffic would require test hooks into the pull code or the
trivial-httpd server, neither of which I have the time to add at the
moment.
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
When support for devicetree was added, it created a problem
because old and new ostree versions would compute different
checksums for the "boot data". The scenario here is:
- Have system with ostree < 2020.4
- Reboot into system with ostree 2020.5
- Try to perform an operation that would retain
that previous booted deployment (common)
Currently ostree iterates over all the deployments
that will be retained and calls `install_deployment_kernel()`,
even for the booted one (which is a bit silly), but
just to verify that all boot data for the targeted
deployments are installed.
This then re-computes the checksum and we'd trip this
assertion.
In practice though, we don't strictly require them to match;
the only thing that will happen if they don't is that we'll
end up with another copy of the kernel/initramfs - and
that only temporarily until the previous deployment
gets GC'd.
Longer term, I think what we really want to do anyways
is probably closer to like a little ostree repo for `/boot`
so that we can e.g. still hardlink kernels there even if
the initramfs changes, or hardlink both kernel/initramfs
if just the devicetree changes, etc.
Closes: https://github.com/ostreedev/ostree/issues/2154
I'm thinking about adding an implementation of ed25519 signatures
with OpenSSL (so we can ship the feature with Fedora CoreOS
without requiring an additional library) and in preparation for
that it's essential that we validate that libsodium-generated
signatures and OpenSSL-generated signatures are compatible.
I don't know if they are yet actually, but the goal of this
new test is to add a pre-generated repository with a signed
commit generated by libsodium.
This will catch if e.g. there's ever a change in libsodium,
or if existing libsodium implementation versions (e.g. the
one in Debian) might differ from what we ship here.
All of the underlying libostree APIs have supported passing `NULL`
for a merge deployment for...a long time. But we never plumbed
it up into the CLI.
Add a `--no-merge` option to aid people who want to do a "factory reset":
https://github.com/ostreedev/ostree/issues/1793
Add test for signature verification of summary file during the pull.
Adopted version of GPG tests from `test-pull-summary-sigs.sh`.
Signed-off-by: Denis Pynkin <denis.pynkin@collabora.com>
Add tests checking:
- sign mechanism is in working state
- module 'dummy' is able to sign/verify commit
- module 'ed25519' is able to sign/verify commit
- both modules could be used for the same commit
- 'ostree sign' builtin works with commits
- 'ostree commit' builtin able to sign commits
Signed-off-by: Denis Pynkin <denis.pynkin@collabora.com>
The full block with all 5 signatures remains, but this allows passing
individual signatures through the GPG verification APIs. The split was
done with `gpgsplit`, and looking at the output of `gpg --list-packets`
of the split and unsplit files appears correct.
These can then be imported during a test to revoke a key without trying
to go through the gpg --generate-revocation dialog. Note that these need
to go in a subdirectory of the homedir since `gpgkeypath` will try to
import every regular file in the homedir.
This function parses the object listing in the `ostree.sizes` metadata
and returns an array of `OstreeCommitSizesEntry` structures.
Unfortunately, for reasons I don't understand, the linker wants to
resolve `_ostree_read_varuint64` from `ostree-core.c` even though it's
not used by `test-checksum.c` at all.
The ostree fsck test is aimed to check that it will still fail an fsck
if the repository has been repaired by fsck. It also checks that a
pull operation corrects the error and ostree fsck will exit with zero.
The test was modeled after the following script:
rm -rf ./f1
mkdir -p ./f1
./ostree --repo=./f1 init --mode=archive-z2
mkdir -p ./trial
echo test > ./trial/test
./ostree --repo=./f1 commit --tree=dir=./trial --skip-if-unchanged --branch=exp1 --subject="test Commit"
rm -rf ./f2
mkdir -p ./f2
./ostree --repo=./f2 init
./ostree --repo=./f2 pull-local ./f1
echo whoops > `find ./f2 |grep objects |grep \\.file `
./ostree fsck --repo=./f2 ; echo Exit: $?
./ostree fsck --delete --repo=./f2 ; echo Exit: $?
./ostree fsck --repo=./f2 ; echo Exit: $?
./ostree --repo=./f2 pull-local ./f1
./ostree fsck --repo=./f2 ; echo Exit: $?
Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
fsck: Update test so that it will pass on fs without xattrs
The fsck test does not require xattrs to prove that it works. It is
simple enough to change it to use an archvie instead of a bare type
repository.
Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
Closes: #1910
Approved by: cgwalters
Do not build GPG signing/verification tests if `--without-gpgme`
option is used during configuration.
Signed-off-by: Denis Pynkin <denis.pynkin@collabora.com>
Closes: #1889
Approved by: cgwalters
This change makes public the current kargs API in src/libostree/ostree-kernel-args.c
and adds documentations.
Upstreams the new kargs API from rpm-ostree/src/libpriv/rpmostree-kargs-process.c
Merges libostree_kernel_args_la_SOURCES to libostree_1_la_SOURCES in Makefile-libostree.am
Upstreams tests/check/test-kargs.c from rpm-ostree.
Closes: #1833Closes: #1869
Approved by: jlebon
The sysroot.bootloader key configures the bootloader
that OSTree uses when deploying a sysroot. Having this key
allows specifying behavior not to use the default bootloader
backend code, which is preferable when creating a first
deployment from the sysroot (#1774).
As of now, the key can take the values "auto" or "none". If
the key is not given, the value defaults to "auto".
"auto" causes _ostree_sysroot_query_bootloader() to be used
when writing a new deployment, which is the original behavior
that dynamically detects which bootloader to use.
"none" avoids querying the bootloader dynamically. The BLS
config fragments are still written to
sysroot/boot/loader/entries for use by higher-level software.
More values can be supported in future to specify a single
bootloader, different behavior for the bootloader code, or
a list of bootloaders to try.
Resolves: #1774Closes: #1814
Approved by: jlebon
