IF YOU WOULD LIKE TO GET AN ACCOUNT, please write an
email to Administrator. User accounts are meant only to access repo
and report issues and/or generate pull requests.
This is a purpose-specific Git hosting for
BaseALT
projects. Thank you for your understanding!
Только зарегистрированные пользователи имеют доступ к сервису!
Для получения аккаунта, обратитесь к администратору.
Using fs-verity is natural for OSTree because it's file-based,
as opposed to block based (like dm-verity). This only covers
files - not symlinks or directories. And we clearly need to
have integrity for the deployment directories at least.
Also, what we likely need is an API that supports signing files
as they're committed.
So making this truly secure would need a lot more work. Nevertheless,
I think it's time to start experimenting with it. Among other things,
it does *finally* add an API that makes files immutable, which will
help against some accidental damage.
This is basic enablement work that is being driven by
Fedora CoreOS; see also https://github.com/coreos/coreos-assembler/pull/876
17db0f15a7 ("configure: add option for libsystemd") exposed
--without-libsystemd to allow systemd to be disabled even if the systemd
pkgconfig script was present, introducing a new variable
with_libsystemd; there are now three, almost identical variables:
- with_libsystemd [yes, no, maybe] - controlled by --without-libsystemd,
resolved into yes/no by the initial checks
- have_libsystemd [yes, no, <undefined>] - only set if with_libsystemd
is yes/maybe, otherwise undefined
- with_systemd [yes, <undefined>] - yes if have_systemd is yes,
otherwise undefined
with_systemd is the earliest variable and was previously set by a set of
checks for dracut and mkinitcpio. These checks were changed for a
systemd check in 9e2763106b ("lib: Use sd_journal directly
(optionally)"). This commit also introduced BUILDOPT_LIBSYSTEMD, which
will always match BUILDOPT_SYSTEMD.
Fix the confusion by removing with_systemd which will always be yes when
with_libsystemd=yes, or undefined if with_libsystemd=no. We can ignore
the with_libsystemd=maybe case because it will always be resolved into
yes/no before with_systemd is set.
And replace all uses of BUILDOPT_SYSTEMD with BUILDOPT_LIBSYSTEMD, since
they again always match.
This fixes both the advertised features and the summary output when
systemd is disabled by using with_libsystemd which is always defined.
Signed-off-by: Alex Kiernan <alex.kiernan@gmail.com>
Fixes: 5c62a7e4d0 ("build: Expose systemd in OSTREE_FEATURES")
Fixes: 17db0f15a7 ("configure: add option for libsystemd")
Supersedes: #1992
This way it's clearer this bit is only about the CLI entrypoint
also living in `ostree trivial-httpd`, not the underlying
`ostree-trivial-httpd` binary that's separate now.
Delete the automake conditional for this, and make the manpage
conditional use `if USE_LIBSOUP` the same way the C build does.
Suggested-by: Jonathan Lebon <jonathan@jlebon.com>
When building without --enable-trivial-httpd-cmdline, don't build or install
the ostree-trivial-httpd binary.
Signed-off-by: Alex Kiernan <alex.kiernan@gmail.com>
Tiny release. Just want to get out the important bugfixes instead of
backporting patches (notably the gpg-agent stuff and
`ostree-finalize-staged.service` ordering).
Closes: #1927
Approved by: cgwalters
Allow to disable GPGME support with option "--without-gpgme" for
configure.
Signed-off-by: Denis Pynkin <denis.pynkin@collabora.com>
Closes: #1889
Approved by: cgwalters
This way projects can dispatch at run-time based on ostree's
build time options, e.g. detect the availability of GPG.
Closes: #1890
Approved by: jlebon
Some downstreams — namely, the Yocto Project — ship gpg-error with a
pkg-config file, and modify gpg-error-config to error out when you try
using it instead of pkg-config.
We can check for gpg-error via pkg-config, and if it's not available,
fall back to gpg-error-config.
Signed-off-by: Emmanuele Bassi <ebassi@gnome.org>
Closes: #1682
Approved by: cgwalters
We use the API, and not linking breaks the build with e.g.
`-fuse-ld=gold` in a Fedora 28 buildroot as gold doesn't do the
"search indirect dependencies" thing.
Closes: #1679
Approved by: jlebon
Currently the API that allows P2P operations (e.g. pulling an ostree ref
from a LAN or USB source) is hidden behind the configure flag
--enable-experimental-api. This commit makes the API public and makes
that flag essentially a no-op (leaving it in place in case we want to
use it again in the future). The P2P API has been tested over the last
several months and proven to work.
This means that since we're no longer using the "experimental" feature
flag, P2P builds of Flatpak will fail when using versions of OSTree from
this commit onwards, until Flatpak is patched in the near future. If you
want to build Flatpak < 0.11.8 with P2P enabled and link against OSTree
2018.6, you'll have to patch Flatpak. However, since Flatpak won't yet
have a hard dependency on OSTree 2018.6, it needs a new way to determine
if the P2P API in OSTree is available, so this commit adds a "p2p"
feature flag. This way the feature set is more semantically correct than
if we had continued to use the "experimental" feature flag.
In addition to making the P2P API public, this commit makes the P2P unit
tests run by default, removes the f27-experimental CI instance that's no
longer needed, changes a few man pages to reflect the changes, and
updates the bash completion script to accept the new commands and
options.
Closes: #1596
Approved by: cgwalters
A quick turnaround to include one PR: https://github.com/ostreedev/ostree/pull/1508
"switchroot: Ensure /run/ostree-booted is created even without initramfs"
This fixes ostree when booting without an initramfs. Thanks to @akiernan for the
bug report and helping review the fix! I'm working on enhancing
the test suite, which will help in adding some coverage here.
Also for this release I'm going to avoid adding a "stub" symbol section
to the `-released.sym` file; I don't believe it's necessary.
Closes: #1512
Approved by: jlebon
It's been over a month since 2018.2; we have a few features and various fixes,
and the "stage" work pending which is pretty invasive. Time for a new release!
Closes: #1506
Approved by: jlebon
Until now ostree checked for libsystemd and enabled
support for it if it found it. This commit changes that
behavior by adding an option to enable/disable libsystemd.
This is especially useful if one uses a source based distro
(like Gentoo/Exherbo), where one wants to avoid such automagic
detection of dependencies and prefers switches for that instead.
Closes: #1490
Approved by: cgwalters
There are enough fixes here, and there are some potentially larger patches
incoming like wmanley's checkout speedups and the payload link that will need
soak time in master.
Closes: #1455
Approved by: jlebon
In particular I'd like to get the `--copyup` changes out for an rpm-ostree
release that will use them. But there are other good changes here, and let's
keep up a regular release train 🚄 in general.
Closes: #1413
Approved by: jlebon
Some people (particularly embedded) may find it simpler to
drop libsoup from the build dependency side, but still use libcurl.
Note though this currently neuters almost all of the tests.
Signed-off-by: Anton Gerasimov <anton.gerasimov@openmailbox.org>
Closes: #1397
Approved by: cgwalters
Let's do a new release with the locking preview, the http2 disable options and
other misc bugfixes to close out the year.
Closes: #1386
Approved by: jlebon
See discussion in https://bugzilla.gnome.org/show_bug.cgi?id=791622
This is what e.g. systemd, the Linux kernel, and lots of other projects do. It's
astonishingly hard to reliably get right; the optimization IMO only really
matters for truly high performance inner loops, but if you're doing
that kind of stuff today you're probably doing it on a GPU anyways.
Closes: #1384
Approved by: pwithnall
Time to cut a new release, we've got the libcurl cleanup ordering patch which
several people have hit, along with safe early fixes for tmpdir cleanup. Let's
try to land the locking PR early next cycle.
Closes: #1359
Approved by: jlebon
The main thing here is that a ton of stuff has happened in gnulib since we
imported `parse-datetime.y`. I cherry-picked a little bit of it, but that
upstream doesn't seem to build with `-Wundef`, so I just deleted some hunks.
(Note I reindented the warnings consistently)
Update submodule: libglnx
Closes: #1320
Approved by: jlebon
Introduce support for GnuTLS for computing cryptograpic
hashes, similar to the OpenSSL backend. A reason to do
this is some distributors want to avoid GPLv3, and GPG
pulls that in.
A possible extension of using GnuTLS would be replacing the GPG signing
with `PKCS#7` signatures and `X.509` keys.
We also support `--with-crypto=openssl`, which has the same effect
as `--with-openssl`, and continues to be supported.
Changes by Colin Walters <walters@verbum.org>:
- Drop libgcrypt option for now
- Unify buildsystem on --with-crypto
Link: https://mail.gnome.org/archives/ostree-list/2017-June/msg00002.html
Signed-off-by: Jussi Laako <jussi.laako@linux.intel.com>
Closes: #1189
Approved by: cgwalters
We use the "exhaustive enum" pattern (i.e. no `default:`) in some places so
we're forced to touch all users when adding cases.
Closes: #1167
Approved by: peterbaouoft
I find "libOSTree" awkward to type and really to look at. Let's be nicer on
people's pinky fingers and eyes and drop it all down to lowercase.
Closes: #1093
Approved by: jlebon
This is in line with the "/etc is for sysadmins", "/usr is OS" model;
e.g. systemd's bash completions go there.
Making this change since I was looking at the required spec file changes.
Closes: #1083
Approved by: mbarnes
This commit sets prgname correctly so that the "ostree subcommand
--help" output prints the subcommand rather than just "ostree".
This was removed in commit f0519e541f because it tripped the thread
sanitizer, but it's being added back conditionally so most users who
don't compile with -fsanitize=adress see proper help output.
Closes: #1054
Approved by: cgwalters
Our CI runs use `-Werror`; there's no point to our default warning set kicking
in, it just bloats the command line output.
Closes: #1023
Approved by: jlebon
This is a more complex implementation of OstreeRepoFinder which resolves
ref names to remote URIs by looking for refs advertised by peers on the
local network using DNS-SD records and mDNS (Avahi). The idea is to
allow OS and app updates to be propagated over local networks, without
the internet.
It requires an OSTree server and code to generate the DNS-SD adverts in
order to be fully functional — support for this will be added
separately.
Unit tests are included.
Includes fixes by Krzesimir Nowak <krzesimir@kinvolk.io>.
Signed-off-by: Philip Withnall <withnall@endlessm.com>
Closes: #924
Approved by: cgwalters
test-symbols.sh was looking for the DevelBuild string, which is actually
part of the output from `ostree --version`, not $OSTREE_FEATURES.
Signed-off-by: Philip Withnall <withnall@endlessm.com>
Closes: #948
Approved by: cgwalters
And use it in `test-symbols.sh`, to fix the `distcheck` case;
the previous change stopped distributing `libostree-devel.sym`
in release builds.
Closes: #944
Approved by: jlebon
I was trying to do a release and move the symbols from `-devel.sym` into
`-release.sym`, but it turns out that at least GNU binutils `ld` treats an empty
version script as a syntax error. Fix this by adding a "release build"
flag, and only include `-devel` in non-release builds.
This would also make it easier to inject that flag into our `.pc` and
`ostree-version.h` and `ostree --version` metadata, but I didn't do that yet.
EDIT: Turns out a simpler fix is just to add an empty section. However I kept
this commit since it's a useful sanity check for whether we should include
`-devel.sym` in builds, and we may want to inject the metadata later.
Closes: #942
Approved by: jlebon
So far a lot of submitted PR have added symbols into the first
section. Split the file into `-released` and `-devel` to make
this more obvious.
To further enforce things, we hardcode a checksum of the `-released`
file in `test-symbols.sh`. Only release commits should update that
checksum.
Did you notice I like checksums?
Closes: #931
Approved by: pwithnall
If one wants to set up a mount for `/var` in `/etc/fstab`, it
won't be mounted since `ostree-prepare-root` set up a bind mount for
`/var` to `/sysroot/ostree/$stateroot/var`, and systemd will take
the already extant mount over what's in `/etc/fstab`.
There are a few options to fix this, but what I settled on is parsing
`/etc/fstab` in a generator (exactly like `systemd-fstab-generator` does),
except here we look for an explicit mount for `/var`, and if one *isn't* found,
synthesize the default ostree mount to the stateroot. Another nice property is
that if an admin creates a `var.mount` unit in `/etc` for example, that will
also override our mount.
Note that today ostree doesn't hard depend on systemd, so this behavior only
kicks in if we're built with systemd *and* libmount support (for parsing
`/etc/fstab`). I didn't really test that case though.
Initially I started writing this as a "pure libc" program, but at one point
decided to use `libostree.so` to find the booted deployment. That didn't work
out because `/boot` wasn't necessarily mounted and hence we couldn't find the
bootloader config. A leftover artifact from this is that the generator code
calls into libostree via the "cmd private" infrastructure. But it's an easy way
to share code, and doesn't hurt.
Closes: #859
Approved by: jlebon
There are currently no unstable APIs, but some will be added in
following commits. They will be built and exposed in the libostree
global symbol list iff configured with --enable-experimental-api.
Distributions should not package OSTree with --enable-experimental-api.
This is designed for previewing new APIs on controlled platforms; any of
the APIs hidden behind this option may be changed or removed at any
point.
Signed-off-by: Philip Withnall <withnall@endlessm.com>
Closes: #832
Approved by: cgwalters
The major reason to do this is that running tests *both* installed
and uninstalled in our CI is a mostly pointless waste of time.
Particularly given we have a few expensive tests.
We *do* have tests that only run uninstalled (since they require
the source code) like `test-symbols.sh`.
Hence, add `--enable-installed-tests=exclusive` to mean *only* do installed for
most tests.
We'll still have uninstalled coverage via the Travis/Debian configs, and we
could perhaps do another build with a subset of uninstalled tests, but I'm not
really concerned about it.
I'd like to do a renewed push for the InstalledTests model since
I feel it's just fundamentally better. (`g-d-t-r` kind of sucks,
but then so does the automake runner).
Also while we're here - fix the CI to use the correct context,
which started this mess.
Closes: #837
Approved by: dbnicholson
This commit won't actually *be* 2017.5 since due to the way our infrastructure
works, we still want to increment git master to 2017.5.
See https://github.com/ostreedev/ostree/pull/800Closes: #800
Approved by: jlebon
(Also rename the other CI contexts to be more consistent)
We pass this right now. I just noticed an instance of this in bwrap, and I think
we should be trying to match the RPM build baseline.
Closes: #765
Approved by: jlebon
This actually worked before because `pkg-config --cflags openssl`
is empty, and the linker was satisfying `-lssl -lcrypto` from our
indirect dependencies.
Also, in fact we *currently* just want `pkg-config libcrypto` i.e.
`-lcrypto`, since we aren't actually using openssl to speak TLS.
This doesn't actually matter on Fedora at least since they're both in the
`openssl-libs` package, but they are separate for a reason.
Closes: #749
Approved by: jlebon
Add an OpenSSL backend to the checksum input stream, which is where we do a lot
of checksumming (object commit, static deltas).
The raw OpenSSL performance is
[approximately double](https://gist.github.com/cgwalters/169349fd1c06fd4fb4d3a7ce33303222) on
my laptop; not only does OpenSSL have e.g. hand-tuned x86_64 assembly, the
current implementation uses the
[Intel SHA extensions](https://en.wikipedia.org/wiki/Intel_SHA_extensions).
Another reason to do this is I was idly thinking about adding
[Curve25519](https://en.wikipedia.org/wiki/Curve25519) signatures (like e.g.
Alpine does) instead of/in addition to GPG. The rationale for that is
that GPG is pretty heavyweight, both in code footprint and the simple
fact that EC keys are way smaller.
I didn't benchmark ostree with this; we have bigger performance problems
really like the fact we just malloc way too much. But, it's a step
in the right direction I think in combination with the libcurl work
where we're linking to openssl anyways.
Closes: #738
Approved by: jlebon
This goes farther along the path of deprecating it; consumers should
have been ported at this point. Though probably a lot of people
may still use `rpm-ostree-toolbox`.
Closes: #723
Approved by: jlebon
OSTree currently provides no way to inspect the versioning
information at run time, being only available at compile
time through pkg-config.
This is a problem for e.g. Flatpak, that needs to check
whether the 'update-frequency' option is available. Checking
at compile time isn't great since it's not looking for new
symbols, but only if an optional feature is present.
This commit, then, adds a new header that is generated
at compile time, exposing OSTree's versioning information.
Closes: #728
Approved by: cgwalters
It's been almost a month, I think the current git is working well and
not too risky. We have some new API additions which I think the
various consumers of them are going to want.
Closes: #726
Approved by: jlebon
I've seen code in a few places that I think on balance is definitely better this
way. Some of our functions have huge variable declaration sections.
This change includes one small example where we could start using declarations
after statements.
A concern I had was - how does this interact with `__attribute__((cleanup))` and
early returns? I tested it, and AFAICS the behavior is what you'd expect - the
cleanup function isn't called if its variable isn't reachable.
Closes: #718
Approved by: jlebon
If --enable-man=maybe (the default), and xsltproc is not available, the
configuration code would check for it, correctly set enable_man=no, then
incorrectly overwrite that with enable_man=yes, which would result in
later trying to execute $(XSLTPROC) when it’s empty.
Signed-off-by: Philip Withnall <withnall@endlessm.com>
Closes: #720
Approved by: cgwalters
https://github.com/ostreedev/ostree/pull/705 broke the build
on CentOS 7 which only has util-linux 2.23.
When I was thinking about this, I realized that there must really be a way to
make this safe even for older versions. Looking at that version of util-linux,
all we need to do is invert the order of frees so we `mnt_free_table()` *before*
`mnt_free_cache()`, like util-linux does:
https://github.com/karelzak/util-linux/blob/stable/v2.23/sys-utils/eject.c#L1131
We still use the `_unref()` versions if available. I also fixed
the ordering there too for double plus redundant safety.
Closes: #712
Approved by: jlebon
I learned today that `docker version` does this and I really like
the idea. While we have the patient open, also add the gitrev
with code taken from https://github.com/projectatomic/rpm-ostree/pull/584Closes: #691
Approved by: giuseppe
We should get a release out to try to keep with at least a once-a-month cadence.
This one has some exciting stuff like libcurl and Rust, and various bugfixes.
Also importantly I want to cut this *before* we land some other bigger stuff, so
rpm-ostree can start using the reload_config API etc.
Closes: #685
Approved by: jlebon
For rpm-ostree, we already link to libcurl indirectly via librepo, and
only having one HTTP library in process makes sense.
Further, libcurl is (I think) more popular in the embedded space. It
also supports HTTP/2.0 today, which is a *very* nice to have for OSTree.
This seems to be working fairly well for me in my local testing, but it's
obviously brand new nontrivial code, so it's going to need some soak time.
The ugliest part of this is having to vendor in the soup-url code. With
Oxidation we could follow the path of Firefox and use the
[Servo URL parser](https://github.com/servo/rust-url). Having to redo
cookie parsing also sucked, and that would also be a good oxidation target.
But that's for the future.
Closes: #641
Approved by: jlebon
This is an initial drop of "oxidation", or adding implementation
of components in Rust. The bupsplit code is a good target - no
dependencies, just computation.
Translation into Rust had a few twists -
- The C code relies a lot on overflowing unsigned ints, and
also on the C promotion rules for e.g. `uint8_t -> int32_t`
- There were some odd loops that I introduced bugs in while
translating...in particular, the function always returns `len`,
but I mistakenly translated to `len+1`, resulting in an OOB
read on the C side, which was hard to debug.
On the plus side, an off-by-one array indexing in the Rust code paniced nicely.
In practice, we'll need a lot more build infrastructure to make this work, such
as using `cargo vendor` when producing build artifacts for example. Also, Cargo
is yet another thing we need to cache.
Where do we go with this? Well, I think we should merge this, it's not a lot of
code. We can just have it be an alternative CI target. Should we do a lot more
right now? Probably not immediately, but I find the medium/long term prospects
pretty exciting!
Closes: #656
Approved by: jlebon
There are many motivating factors. The biggest is simply that at a practical
level, the command line is not sufficient to build a real system. The docs say
that it's a demo for the library. Let's make that more obvious, so people don't
try to use `ostree admin upgrade` for their real systems, and also don't use
e.g. `ostree commit` on the command line outside of test suites/quick hacking.
This change will also help clarify the role of rpm-ostree, which we will likely
be renamed to "nts". Then use of the term "ostree" will become much clearer. And
similarly for other people writing upgraders, they can say they use libostree.
I didn't try to change all of the docs and code at once, because it's going to
lead to conflicts.
The next big steps are:
- Rename the github repo (github will inject a redirect)
- Look at supporting a build where we don't do `ostree admin`, or at least
it's only built for tests. We may want to split it off as a separate binary
or so? That way people with their own upgraders don't need to ship it.
Closes: #659
Approved by: jlebon
Unfortunately, introspection uses dlopen(), which doesn't quite
work when the DSO is compiled with ASAN but the outer executable
isn't.
Trying to inject LD_PRELOAD=libasan means the outer executable has to
be leak free...which, yeah, I'm not going to get into running ASAN
today on gjs or pygobject.
So, let's skip those tests - ideally, we still run them in some other
context without the sanitizers. The coverage we have from them is
middling anyways.
Closes: #622
Approved by: jlebon
This pulls in a new compilation flag for wrpseudo compatibility. Also
note we need to add some includes since glnx-libcontainer went away,
and with it some includes for `sys/mount.h` etc.
Closes: #522
Approved by: cgwalters
If the `--with-static-compiler=musl-gcc` configure flag is given.
ostree-prepare-root can be used as init in a system without a populated
/lib. To support this use case we need to link statically as we will be
unable to locate libc.so at run time if it's not installed in /lib.
We support building ostree-prepare-root with a different compiler to the
rest of ostree so we can use musl rather than glibc. This reduces the size
of the executable significantly: from ~700K -> ~30K. We have to use
`_SCRIPTS` here to get autotools to install this as an executable but
without generating rules to make it itself which we have specified
manually.
See https://lists.gnu.org/archive/html/help-gnu-utils/2007-01/msg00007.html
for advice on using autotools in this manner.
Closes: #477
Approved by: cgwalters
Lots and lots of preparation led to this moment - when nothing
apparent changes for users! Woo!
But seriously, having the extra dependency is a minor annoyance, and
in the big picture I think the libgsystem idea was wrong - we need to
land things in GLib, and use git submodules for API-unstable or
Linux-specific sharing. For a lot of OSTree, the libgsystem `GFile*`
orientation was also wrong, we really want fd-relative.
Closes: #444
Approved by: jlebon
I want to add `-Werror=int-conversion`, but it's only available in
newer GCC versions. So let's start autodetecting available compiler
flags.
Closes: #431
Approved by: giuseppe
In general this is even cleaner now, though it was better after I
extracted a helper function for the "write tempfile with contents"
bits that were shared between metadata and regular file codepaths.
Closes: #369
Approved by: jlebon
This was the last caller of libgsystem that isn't
`gs_file_get_path_cached()`. I think the use case ostree has where
the same code can be called via command line and via a shared library
*and* via a daemon is rather unusual, so let's just copy the code for
logging from libgsystem into here.
For example rpm-ostree hard depends on a daemon mode, so it'll just
use `sd_journal` directly.
Closes: #341
Approved by: jlebon
The AC_PROG_YACC already does the checking for us, so we don't need to
use AC_CHECK_PROGS (which wasn't working anyway because autoconf didn't
run the check thinking it was cached already from the earlier
AC_PROC_YACC, so we didn't get the default ":" value)
Closes: #325
Approved by: cgwalters
It's actually just easier for build systems (e.g. rpm-ostree)
using dracut to use `--add ostree` rather than indirecting
through the conf file.
This makes it easier for yum-managed systems to install ostree without
side effects.
Closes: #279
Approved by: gatispaeglis
If one happens to not have grub2 installed, the previous commit
would cause us to fall back to `grub-mkconfig` with bad results.
We should likely just do dynamic detection and avoid pain, but
there's no harm in also allowing this to be statically determined.
The automagic here is that if `/etc/os-release` says `ID_LIKE=fedora`,
we know to use `grub2-mkconfig`. But distro scripts should set this
in the build configurations using `--with-grub2-mkconfig=`.
Closes: #240
Approved by: jlebon
ostree-grub-generator can be used to customize
the generated grub.cfg file. Compile time
decision ostree-grub-generator vs grub2-mkconfig
can be overwritten with the OSTREE_GRUB2_EXEC
envvar - useful for auto tests and OS installers.
Why this alternative approach:
1) The current approach is less flexible than using a
custom 'ostree-grub-generator' script. Each system can
adjust this script for its needs, instead of using the
hardcoded values from ostree-bootloader-grub2.c.
2) Too much overhead on embedded to generate grub.cfg
via /etc/grub.d/ configuration files. It is still
possible to do so, even with this patch applied.
No need to install grub2 package on a target device.
3) The grub2-mkconfig code path has other issues:
https://bugzilla.gnome.org/show_bug.cgi?id=761180
Task: https://bugzilla.gnome.org/show_bug.cgi?id=762220Closes: #228
Approved by: cgwalters
I'd like to encourage people to make OSTree-managed systems more
strictly read-only in multiple places. Ideally everywhere is
read-only normally besides `/var/`, `/tmp/`, and `/run`.
`/boot` is a good example of something to make readonly. Particularly
now that there's work on the `admin unlock` verb, we need to protect
the system better against things like `rpm -Uvh kernel.rpm` because
the RPM-packaged kernel won't understand how to do OSTree right.
In order to make this work of course, we *do* need to remount `/boot`
as writable when we're doing an upgrade that changes the kernel
configuration. So the strategy is to detect whether it's read-only,
and if so, temporarily mount read-write, then remount read-only when
the upgrade is done.
We can generalize this in the future to also do `/etc` (and possibly
`/sysroot/ostree/` although that gets tricky).
One detail: In order to detect "is this path a mountpoint" is
nontrivial - I looked at copying the systemd code, but the right place
is to use `libmount` anyways.
OSTree's code for testing predates the `glib-tap.mk` making its
way into GLib. Let's switch to it, as it provides a number
of advantages.
By far the biggest advantage is that `make check` can start to run
most of the tests *in addition* to having them work installed.
This commit keeps the installed tests working, but `make check` turns
out to be really broken because...our TAP usage has bitrotted to say
the least. Fix that all up.
Do some hacks so that the tests work uninstalled as well - in
particular, `glib-tap.mk` and the bits encoded into
`g_test_build_filename()` assume *recursive* Automake (blah). Work
around that by creating a symlink when installed to loop back.
While it's not strictly tied to OSTree, let's move
https://github.com/cgwalters/rofiles-fuse in here because:
- It's *very* useful in concert with OSTree
- It's tiny
- We can reuse OSTree's test, documentation, etc. infrastructure
One thing to consider also is that at some point we could experiment
with writing a FUSE filesystem for OSTree. This could internalize a
better equivalent of `--link-checkout-speedup`, but on the other hand,
the cost of walking filesystem trees for these types of operations is
really quite small.
But if we did decide to do more FUSE things in OSTree, this is a step
towards that too.
