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This is the first step towards unifying how we introspect packages from
a specific commit. We currently do this in three ways: libdnf, librpm,
and now `rpmostree.rpmdb.pkglist`. I'd like to get to a point where we
only have `rpmostree.rpmdb.pkglist` and libdnf, the latter only when
more complex queries are required.
This patch teaches the `db diff` command to make use of the new db diff
API so that it can work even on metadata-only commits. This is relevant
for use cases mentioned in #558.
I didn't get rid of the `rpmhdrs_diff` functions right now because of
the `--changelogs` option: libdnf currently does not expose this, so we
fall back to the previous API in that case. OTOH, I wonder how much it's
actually used in the wild; maybe we could just nix it?
Closes: #1162
Approved by: cgwalters
This is used in critical paths like pungi, so let's be sure it works;
the semantics are a bit subtle as it overrides setting the ref.
Closes: #1161
Approved by: jlebon
To make the new pkglist metadata even more usable, let's insert it
sorted. This ensures that we can bsearch the GVariant on the
client-side.
Enhance the bsearch utility function we have to deal with duplicate key
names. Although this is not the case today in rpm-ostree-managed streams
I know, some packages are allowed to have multiple versions installed,
so let's make sure we handle that deterministically by always returning
the first (earliest) version of the package.
Closes: #1158
Approved by: cgwalters
The new `rpmdb.pkglist` metadata is a cheap way of retrieving the set of
packages in a commit. I'd like to make use of it as much as possible vs.
checking out the rpmdb and setting up a DnfSack.
Of course, in the case of layered commits, it doesn't matter *as* much,
because a layered commit being present in the repo should mean that a
deployment is currently using it, and we should learn to reuse the rpmdb
checkout of that deployment. Though keeping it consistent across both
server and client commits makes implementing `OstreeDeployment`-agnostic
things like `db diff` more efficient too. I also plan to use this in the
upcoming auto-update code.
Closes: #1158
Approved by: cgwalters
This fixes another thing broken with `compose --ex-unified-core`;
for e.g. `/usr/bin/ping` from `iputils`, the classic example of a filecaps
binary.
As I'm writing this commit message I realize it will actually also
take effect for package layering unnecessarily; we'll pointlessly
break the hardlink. But eh, it doesn't matter right now, we can
optimize that later.
Closes: #1151
Approved by: jlebon
Rather than entirely symlinking `systemctl` → `/bin/true`, in order
to e.g. have NetworkManager be enabled, we need to process presets.
This is one of the things that's breaking FAHC where I did a
`--ex-unified-core` deployment.
(Actually it's a bit tempting to run a mass preset pass at the end,
but for now let's do this)
Implementation note: this is our first use of GResources, which
is a handy way to embed data into our final binary.
Closes: https://github.com/projectatomic/rpm-ostree/issues/550Closes: #1148
Approved by: jlebon
This rolls up several libglnx changes: https://github.com/GNOME/libglnx/pull/101
Now of course things are trickier here because we have an internal
abstraction over directly emitting to a console versus sending the
result over DBus. Further complicating things is that some things
call into libdnf and thus *require* use of `DnfState` which does
not give us the "n items" information, versus other parts which
we implement and can do what we want.
Even *further* complicating things is that we have to take care around non-CLI
callers like Cockpit; so I didn't try to pass the "n items" over DBus, rather
just reimplemented the "insert into text" that libglnx is doing.
Anyways overall this looks better IMO for all cases.
Update submodule: libglnx
Closes: #1143
Approved by: jlebon
This is prep for a rework of
https://github.com/projectatomic/rpm-ostree/pull/621
For a no-op `rpm-ostree upgrade` (i.e. no updates available), as long as
layering is enabled, we pay the cost of checking out the base tree, *mostly*
only to get the base rpmdb.
This is prep for fixing that down the line by knowing we always have the "base"
tree's rpmdb checked out. Then in the layering case we only modify
`/usr/share/rpm` (eventually that will point to `/usr/lib/sysimage/rpm`).
Teaching `rpmostree-core.c` about this can follow on later.
Closes: #1142
Approved by: jlebon
Having the "jigdo set" in repodata makes it so we can parallel download the
jigdo RPM with the set. However for now, I kept the jigdo set in the jigdoRPM,
since that way it'll be covered by the signature.
Also, this changes the way we inject metadata to use a magic comment string,
since trying to pass a gigantic macro to `rpmbuild` via its argv didn't work out
so well (it looks like rpmbuild eats newlines). This approach is more robust.
Closes: https://github.com/projectatomic/rpm-ostree/issues/1132Closes: #1140
Approved by: jlebon
With unified core 🌐 we are *relying* on the devino cache
for correctness when using `bare-user` repos. Otherwise lots
of bad things will happen as we won't hit the happy path from
[this libostree PR](https://github.com/ostreedev/ostree/pull/1297)
(I should probably add an assertion there that we aren't trying to commit
`user.ostreemeta`).
It looks like I had this working in some of the old unified core WIP patches,
but it was lost when rebasing 🏄.
We noticed this when I was trying to deploy jigdo in FAHC and the system
wouldn't boot as various things rely on those suid transitions.
Closes: #1139
Approved by: jlebon
We don't want to have to download all of `/usr/share/rpm` just to get
the list of packages used to compose the tree. This is fundamental
information that needs to be easier to discover. So let's stick it right
in the commit metadata. There's various use cases for this information,
including easily checking for and displaying updates and a pkglist-aware
version of `ostree log`.
Closes: #1134
Approved by: cgwalters
This function is now basically reimplementing all of the intelligence
we have in libostree today. It wouldn't have worked before we
fixed https://github.com/ostreedev/ostree/issues/1165 but now
that's done, conceptually we just need to call
`ostree_repo_commit_modifier_set_sepolicy()`. However, I had
to drop the "number of files changed" since currently the libostree
API doesn't support that.
Also, in order to detect the case that content changes at all (so
we still have some useful information in the journal), implement
a "content hash" check.
See also https://github.com/projectatomic/rpm-ostree/pull/1123
(And note we *don't* use `DEVINO_CANONICAL` here)
Closes: #1138
Approved by: jlebon
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
Now that the importer *only* imports into OSTree repos, let's
clean up the API so that the `OstreeRepo` and `OstreeSePolicy`
are passed as constructor args.
Also rework things so there's only one constructor API that
steals the fd.
This is prep for adding another async import API.
Closes: #1124
Approved by: jlebon
We are going to want versioning on the jigdo RPMs, since it's
highly likely things change.
This is done via new magic '-D rpmostree_jigdo_meta` macro, which we can also
use for other things down the line.
Closes: #1135
Approved by: jlebon
Let's "repo bind" the OIRPM by default; this makes the rpm-md repo feel a lot
more like an ostree remote, and IMO is just a really good idea in general to
increase predictabilty.
Closes: #1130
Approved by: jlebon
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
Tracking issue: https://github.com/projectatomic/rpm-ostree/issues/1081
To briefly recap: Let's experiment with doing ostree-in-RPM, basically the
"compose" process injects additional data (SELinux labels for example) in an
"ostree image" RPM, like `fedora-atomic-host-27.8-1.x86_64.rpm`. That "ostree
image" RPM will contain the OSTree commit+metadata, and tell us what RPMs we
need need to download. For updates, like `yum update` we only download changed
RPMs, plus the new "oirpm". But SELinux labeling, depsolving, etc. are still
done server side, and we still have a reliable OSTree commit checksum.
This is a lot like [Jigdo](http://atterer.org/jigdo/)
Here we fully demonstrate the concept working end-to-end; we use the
"traditional" `compose tree` to commit a bunch of RPMs to an OSTree repo, which
has a checksum, version etc. Then the new `ex commit2jigdo` generates the
"oirpm". This is the "server side" operation. Next simulating the client side,
`jigdo2commit` takes the OIRPM and uses it and downloads the "jigdo set" RPMs,
fully regenerating *bit for bit* the final OSTree commit.
If you want to play with this, I'd take a look at the `test-jigdo.sh`; from
there you can find other useful bits like the example `fedora-atomic-host.spec`
file (though the canonical copy of this will likely land in the
[fedora-atomic](http://pagure.io/fedora-atomic) manifest git repo.
Closes: #1103
Approved by: jlebon
`test -n` would always be true. Also while I have the patient open
let's make writing the file atomic. Maybe someday I'll be motivated
enough to write an `O_TMPFILE` patch for bash.
Closes: #1103
Approved by: jlebon
When we added the `--ex-unified-core` option our caching story got
very messy because the non-unified core caches RPMs, but unified
does ostree repo caching.
For jigdo, we want the RPMs. Fix this by mirroring the RPMs using
`--download-only` and pointing the tests consistently at that.
Closes: #1122
Approved by: jlebon
We originally needed the pkgcache to be a separate repo due to ostree's
overzealous pruning policies. The idea was to maintain multiple commits
in each pkg branch for different SELinux policies. In practice, there's
not much use in maintaining old copies and it's just easier to always
relabel on the fly. So then, the need for a separate repo completely
melts away.
This helps simplify the mental model a bit and allows us to avoid subtle
issues like #1047. Note however that the core is still capable of
handling split repos for the `--ex-unified-core` compose use case. Once
that and the jigdo work are a bit more settled, we can have a clearer
picture of how to simplify the core further.
The tricky bit is migrating the cache. When deploying, we check if a
pkgcache repo exists and migrate its refs if so. We then leave behind a
symlink to the system repo to remain compatible with older rpm-ostrees.
Closes: #1055
Approved by: cgwalters
Right now each ostree txn incurs a `syncfs()`; see
https://github.com/ostreedev/ostree/issues/1184
And before this patch, we were doing a txn per package import.
We can really do better in libostree - we'll fix that, but in the short term
let's use a bigger txn for every package. However, the obvious change here of
simply hoisting up the txn is that on failure for imports, we'd discard all
downloaded packages. We fix that by changing the auto txn API to have
a `commit_on_failure` boolean, and use it in cases where we're doing
imports.
This is prep work for jigdo, where we'll be using the import path all the time.
My bigger plan is to do multithreaded imports.
Closes: #1116
Approved by: jlebon
It took me way, way, way too long to debug that my dev container somehow missing
`ostree-grub2` caused the script to fail early, but we'd still continue trying
to sync, leading to us not actually changing the installed `rpm-ostree` binary,
leading to test suite failures.
Also add the chmod hammer at the top so we can delete even if we fail after
doing an rsync.
Closes: #1115
Approved by: jlebon
In the jigdo path we don't actually want to import the OIRPM literally
into ostree. I considered adding jigdo logic into `rpmostree-unpacker.c`
but it'd be a mess as the functionality is quite logically separate
from importing.
So split off an `unpacker-core.c` file which has the bare libarchive+RPM
helpers, and rename `RpmOstreeUnpacker` to `RpmOstreeImporter`.
Closes: #1110
Approved by: jlebon
We removed this in review, but I rediscovered why I added it. We
fail the `g_assert (sepolicy_matches)` if we already had packages
done with the final label when we go to reuse the cache.
(Basically, if we use the cache multiple times it's hard to avoid
relabeling all the time which is unfortunate...gets back a bit to
a way to annotate pkgcache commits as supporting multiple policies)
Closes: #1109
Approved by: jlebon
The "--ex" prefix here means it's an experimental option. A tremendous change
here is that start to support non-uid 0, but there are various things to fix there;
the unpacker for example needs to learn to set imported objects fully based
on the rpmfi information (i.e. default to uid 0, since libarchive gives the
current uid by default).
And even when run as uid 0, there are some bugs, though I'm not sure
of any showstoppers yet. For example, dracut's `dracut-install` calls
`cp --preserve=xattrs` which fails to copy the `user.ostreemeta` xattrs
from a checkout (it shouldn't be copying that anyways...)
Nevertheless, the infrastructure behind this really helps (is almost a hard
requirement for) the [jigdo effort](https://github.com/projectatomic/rpm-ostree/issues/1081).
Which is really only true due to SELinux - we need to import the packages,
then generate the final tree to get the final policy, then use that policy
to relabel all of the packages.
Closes: #940
Approved by: jlebon
In an unprivileged case, we can't do this on the real filesystem. For
`ex container`, we want to completely ignore uid/gid. I added a test
installing `httpd` which failed previously.
TODO: For non-root `--ex-unified-core` we need to do it as a commit modifier.
Closes: #940
Approved by: jlebon
More work for unified core; this was one of the biggest parts of the `ostree
diff` when comparing a unified core treecompose of Fedora Atomic Host versus
the libdnf path.
This is also the first case where we're teaching the pkgcache to redownload
based on state.
Closes: #1105
Approved by: jlebon
I was trying to figure out why:
rpm-ostree compose tree --repo repo/ manifest.json
would result in:
error: opendir(manifest.json): No such file or directory
It turned out to be because we had `--repo` in *both* the `install`
options and the `commit` options. This makes sense since both these
subcommands need to be given a repo. However, in the `tree` case, we
were adding both arrays, which meant we inherited two `GOptionEntry`s
for `--repo`. This confused glib2 which consumed not one but two CLI
arguments when looking for the argument associated with `--repo`.
Our CI didn't notice this because it uses the `--repo=foo` notation,
which doesn't throw off glib2.
Fix this by factoring out the `--repo` option into a separate array so
that in the `tree` case, it only gets added once. Exercise the fix in CI
by using the two argument notation for `--repo`.
Closes: #1101
Approved by: cgwalters
We have a *lot* of experimental functionality. I think the
`override` bits are fleshed out enough now that we can lift
the `ex` designation. For example, jlebon fixed SELinux
labeling in the presence of override-replace.
Closes: #1089
Approved by: jlebon
Added unit tests for rpm-ostree ex kargs --delete,
--append and --replace.
Also exposed two getter functions for kargs table
and array so people can retrieve information from
kargs.
Also includes a minor fix for a bug caught by the unit
test.
Closes: #1013
Approved by: cgwalters
Refined a bit for the previous written kargs test.( mainly for
checking kargs after rollback )
Added tests for import-proc-cmdline and deploy-index option
Closes: #1013
Approved by: cgwalters
Refactor the similar code portion from delete option into
a new function, and reuse it in the replace logic.
Add the replace functionality to allow kernel arguments
replacement. Now support two different types of replacement:
1: replace by key=value when there is only one key existing
e.g we have 'hi=hello' as our one of the arguments (hi only has
one value associated with it) , and 'rpm-ostree ex kargs --replace hi=new'
will replace the value and change hi=hello into hi=new.
2: replace by key=value=new_value for all other replacements
( this will work for swapping single value pair too !)
Some tests for rpm-ostree ex kargs --replace are added
for future regression.
Closes: #1013
Approved by: cgwalters
Tests are introduced in this commit to test the basic
functionality for rpm-ostree ex kargs --append,
and rpm-ostree ex kargs --delete.
Those tests are added for future regression.
Closes: #1013
Approved by: cgwalters
This is a revisit of a PR for client-side layering: https://github.com/projectatomic/rpm-ostree/pull/1072
Here though we're doing this by default for server-side composes.
There are a few reasons to do this; first, I'm seeing an issue
in some of our Jenkins jobs for Fedora that hit "mirror roulette"
and end up creating commits that "revert" to older versions temporarily.
While I've [certainly pitched](https://lists.fedoraproject.org/archives/list/devel@lists.fedoraproject.org/message/IMPE6KCRBHCEJH5VBE6ZFIRLPAD743JT/) this as a feature, I think
we really want something like `--force-older-timestamp` - basically
error out if the timestamps on one or more input repos were older.
Not doing that in this patch, but it paves the way to do so.
Second, I'd like to use this data in the `ostree.source-title`
metadata key down the line. Something like:
`└ rpmmd: fedora-26 (20170310), fedora-26-updates (20171101)`
(This could be a lot nicer if we drive versioning in to the rpm-md repo info,
and e.g. there's some friendly "week number" style versioning for the updates
repo now that it's batched...for now we have timestamps)
For CentOS/RHELAH this gets interesting and potentially more verbose,
to the point where we may want to render it more explicitly.
But anyways, let's do this now, as it will be useful even without
an explicit rendering, since users can do e.g. `ostree show` on
a base commit hash to dump the data.
I had a concern that some users may not want to emit this metadata;
they can currently do `--add-metadata-string rpmostree.rpmmd-repos ''`
and that will "win".
Closes: #1079
Approved by: jlebon
Related to: https://github.com/projectatomic/rpm-ostree/issues/49
We want to support "name binding" per client system, rather than
having a hardcoded mapping in our tree. Currently if e.g. a new
daemon is added as a dependency (or as part of e.g. systemd) it's
easy to silently miss it.
This is prep for doing that binding client side consistently, which is what we
do with package layering.
Closes: #1077
Approved by: jlebon
We won't have done the postprocessing, so `/usr/lib/passwd` won't exist. Trying
to use `compose install` with current fedora-atomic failed (I *really* should
have tested that at least manually with the final patchset). Add `check-passwd`
to the test suite so this gets coverage too.
Closes: #1076
Approved by: jlebon
Related to: https://github.com/projectatomic/rpm-ostree/issues/774
We aren't yet trying to render this in any way on the client side, but let's
start capturing the timestamp data now so that we can make use of it later
in e.g. `rpm-ostree status -v`.
Closes: #1072
Approved by: jlebon
Right now `rpm-ostree compose tree` is very prescriptive about how things work.
Trying to add anything that isn't an RPM is absolutely fighting the system. Our
postprocessing system *enforces* no network access (good for reproducibilty, but
still prescriptive).
There's really a logical split between three phases:
- install: "build a rootfs that installs packages"
- postprocess: "run magical ostree postprocessing like kernel"
- commit: "commit result to ostree"
So there are two high level flows I'd like to enable here. First is to allow
people to do *arbitrary* postprocessing between `install` and `commit`. For
example, run Ansible and change `/etc`. This path basically is like what we have
today with `postprocess-script.sh`, except the builder can do anything they want
with network access enabled.
Going much farther, this helps us support a "build with Dockerfile" style flow.
We can then provide tooling to extract the container image, and combine
`postprocess` and `commit`.
Or completely the other way - if for example someone wants to use `rpm-ostree
compose install`, they could tar up the result as a Docker/OCI image. That's now
easier; an advantage of this flow over e.g. `yum --installroot` is the "change
detection" code we have.
Related issues/PRs:
- https://github.com/projectatomic/rpm-ostree/pull/96
- https://github.com/projectatomic/rpm-ostree/issues/471
One disadvantage of this approach right now is that if one *does* go for
the split approach, we lose the "input hash" metadata for example. And
down the line, I'd like to add even more metadata, like the input rpm repos,
which could also be rendered on the client side.
But, I think we can address that later by e.g. caching the metadata in a file in
the install root and picking it back up or something.
Closes: #1039
Approved by: jlebon
Depends: https://github.com/ostreedev/ostree/pull/1296
As I mention in the commit there, I see two uses for this in rpm-ostree; first
in our test suite, and second for OCI-built image imports.
I also took a step further here and inject an `original-origin` metadata
key, though we aren't actually using that yet. The problem I'm trying
to solve there is that repeated `make vmoverlay` starts chaining things up,
but that gets very confusing. I think we should always have `vmoverlay` unwind
back to the base ref. (Or at least do that by default)
Closes: #1069
Approved by: jlebon
In another PR I did the manual bridging of commit metadata to deployment
property, but that's annoying. Let's just bridge all commit metadata.
Closes: #1069
Approved by: jlebon
Switching to the `_CONSUME` flag revealed an "oh god how did I write that"
bug in the previous patch in https://github.com/projectatomic/rpm-ostree/pull/1046
AKA commit: 334f0b89be
The way that actually fixed the bug before was because we were using
hardlink checkouts, and we were operating outside an `rofiles-fuse`
context, we simply directly changed the on-disk object mode.
But with the `_CONSUME` flag we started deleting the files as we write,
meaning that stopped working.
I *initially* wrote a patch to do the same split "prepare/processing/commit"
flow that treecompose and package layering do, but that can't really fix this
bug - we need to do it on import.
So do the chmod on import and drop the postprocessing bits.
Closes: #1067
Approved by: jlebon
