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As something that manages your base operating system, we care
about reliability, predictability, as well as performance and
low-level access to native operating system facilities. The
C programming language is great for the latter two, but fails
at providing a truly memory-safe environment. Rust is fairly
unique in providing a language that doesn't carry a runtime,
so we can gradually "oxidize" and convert our C code without
imposing additional overhead. It's also got a lot of modern
design niceties, like not having a null pointer.
Let's pull the trigger here and hard require Rust. It's the
programming language I personally want to be primarily writing in for
years to come.
This is also in line with a recent trend of reducing our
experimental/optional matrix.
Closes: #1509
Approved by: jlebon
It is actually really nice that there's One Canonical Style, even
if I sometimes don't like some details of what rustfmt does.
Closes: #1444
Approved by: jlebon
It makes more sense to have the include live next to the associated
code, just like we do with C, even though the `cargo build` doesn't
touch it.
Closes: #1444
Approved by: jlebon
Add a new `reset` command that makes it easy to blow away all
customizations: overlays, overrides, and initramfs. One can use flags to
only reset some of the customizations.
I placed this under `ex` out of conservatism. It's a pretty simple
command with simple behaviour, though the features it relies on
(no-layering, no-initramfs) are brand new. We can move it out of there
in a release or two?
Closes: #1387Closes: #1419
Approved by: cgwalters
Let's modernize and start supporting YAML treefiles. I'll dare make the
sweeping generalization that most people would prefer reading and
writing YAML over JSON.
This takes bits from coreos-assembler[1] that know how to serialize a
YAML file and spit it back out as a JSON and makes it into a shared lib
that we can link against. We could use this eventually for JSON inputs
as well to force a validation check before composing.
If we go this route, we could then turn on `--enable-rust` in FAHC for
now and drop the duplicate code in coreos-assembler.
[1] https://github.com/cgwalters/coreos-assemblerCloses: #1377
Approved by: cgwalters
This was caught by the abicheck in Fedora; since we were building with default
visibility for `librpmostreepriv.la` which was linked statically into the public
library, we'd end up with lots of internals as public ABI.
Fix this by using `-fvisibility=private` for the libpriv build and for good
measure elsewhere so we remember to use it by default.
Closes: #1320
Approved by: jlebon
This renames the remaining C files, tests, etc. There are only
a few hits for `jigdo` left; changing them would be a format break,
so let's wait to do that until we need to.
Closes: #1279
Approved by: jlebon
I saw kalev's slides reference `rpm-ostree unlock`; this patch makes it exist.
In general, people have a hard time (understandably) grasping the distinction
between ostree and rpm-ostree; along with the goal of making ostree really
"libostree", let's start wrapping more commands where it makes sense.
I also took this opportunity to have a more descriptive name; it's important
to note that it *doesn't* overlay `/etc`, `/var`, or `/boot` for example.
Closes: #1233
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
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
I think the `ex container` path supercedes this; it was really just a demo, and
having it around is annoying since I want to change the importer API and I have
to change it here too.
Closes: #1116
Approved by: jlebon
This is initial groundwork for https://github.com/projectatomic/rpm-ostree/issues/594.
This commit sets up most of the required
front end logic( arg parsing, transaction handling), and will
be used in the following commits.
There is nothing really fancy in this commit, as most of the code
shares the similar style between other dbus related commands.
Closes: #1013
Approved by: cgwalters
This is essentially the `dnf/yum makecache` equivalent for rpm-ostree.
To complete the picture, this goes hand in hand with the `-C`
equivalent, which is added in the next patch.
Closes: #1035
Approved by: cgwalters
Spawn pkttyagent when trying to call a method that may require
authentication to give users a chance to provide auth right from the
terminal.
Since we're now relying on polkit for authorizing most of the OS
interface methods, let's drop the root check on those.
Closes: #894
Approved by: cgwalters
This is one more step towards making rpm-ostree more powerful in its
quest to be the ultimate *hybrid* image/package system. Package layering
allows us to add packages on top of the base package set received from
the content provider. However, we're not able to remove or replace
packages in the base set itself.
This patch introduces a new `override` command, which is for now nested
under the experimental `ex` command. The `override` command will allow
users to modify the base package set itself. The first implemented
subcommands are `remove` and `reset`.
A stub has been provided for the more useful `replace` subcommand,
though much of the needed logic for that operation are implemented in
this patch as part of the `remove` subcommand.
Part of: https://github.com/projectatomic/rpm-ostree/issues/485Closes: #797
Approved by: cgwalters
There are a few different use cases here. First, for layering new packages,
there's no good reason for us to force a reboot. Second, we want some support
for cherry-picking security updates and allowing admins to restart services. Finally,
at some point we should offer support for entirely replacing the running tree
if that's what the user wants.
Until now we've been very conservative, but there's a spectrum here. In
particular, this patch changes things so we push a rollback before we start
doing anything live. I think in practice, many use cases would be totally fine
with doing most changes live, and falling back to the rollback if something went
wrong.
This initial code drop *only* supports live layering of new packages. However,
a lot of the base infrastructure is laid for future work.
For now, this will be classified as an experimental feature, hence `ex livefs`.
Part of: https://github.com/projectatomic/rpm-ostree/issues/639Closes: #652
Approved by: jlebon
The goal is to consolidate our "experimental" functionality under one
subcommand. This makes it easier to determine when things "graduate"
to permanent-stability status under the main command line.
Closes: https://github.com/projectatomic/rpm-ostree/issues/682Closes: #683
Approved by: jlebon
There are two main issues right now; first, we don't pick up manual changes to
`.origin` files, which occurs when one needs to sed it to remove `unconfigured`
for example. Second, we need to reload changes to the remotes.
Closes: #598
Approved by: jlebon
We sometimes talk about using `ostree admin undeploy`, but that
doesn't know about the pkgcache, and hence space there leaks
until the next rpm-ostree operation.
Just for this, we need to expose a cleanup command (and API). But
we also need to support cleaning:
- repomd
- downloads (repo/tmp)
So let's start implementing that.
Closes: #614
Approved by: jlebon
I debated just putting this in the supported list, but decided against
it in the end. This really should be something that happens
transparently, and if it doesn't then something else is probably wrong.
Closes: #617
Approved by: cgwalters
We want people to use the libostree API for things like this. Further, the
`rpm-sign` tool that this calls is Red Hat internal, so it doesn't make sense to
have a public wrapper for it.
Closes: https://github.com/projectatomic/rpm-ostree/pull/152Closes: #607
Approved by: jlebon
The actual problem I am trying to fix with this is fallout from the
introduction of `/usr/libexec/rpm-ostreed`, which required a SELinux
policy change. Specifically for CentOS, the base policy is rev'd
slowly.
My hope was that by merging the daemon code back into `/usr/bin/rpm-ostree`
which is labeled `install_exec_t`, starting via systemd would do
the right thing. It turns out that doesn't happen.
Now later, I'm picking this patch back up because I want to do multprocessing in
the daemon (and in the core), and it makes sense to share code between them,
because multiprocessing will need to go through a re-exec path.
Another benefit is we avoid duplicated text (libglnx, internal helpers) between
the two binaries.
Closes: #292
Approved by: jlebon
Currently we push for a model where the initramfs is
generated (in non-hostonly mode), and merely replicated.
However, to support a few unfortunate corner cases like dm-multipath which wants
to inject a config file into the initramfs, we need to support regenerating it
client side too.
Down the line, we'll need this to support overriding the kernel too.
This changes things in the core to add the concept of an "empty"
`RpmOstreeContext`. I initially tried skipping it, but that was too much
duplication. We still want all of the core ostree-related logic that lives in
that code too.
The treespec bits barfed if the spec didn't have a `tree/packages` key. It was
simplest to change that to allow it - and because that was the only case where
we errored out in parsing, I dropped the error handling.
There was another place in the upgrader that now needed to be fixed to handle
transitioning from just regenerating initramfs to not.
Closes: #574
Approved by: jlebon
See https://github.com/projectatomic/rpm-ostree/issues/405
This patch adds an (off by default) `--enable-new-name` build option
which currently defaults to `nts`. This is purely additive, and
the intention is that we'll support the rpm-ostree name in
perpetuity most likely.
At the moment, we add a new name for:
- /usr/bin/$name
- The systemd unit file
But we notably *don't* attempt to add a new name to the DBus API,
as it'd be a lot more invasive of a patch, and less payoff (it's
mostly just programs/scripts that interact with the DBus).
Closes: #497
Approved by: jlebon
So I was trying to hack on my host's copy of rpm-ostree inside a pet
docker container, but ran into a conflict with libhif since dnf uses
it. I think we basically need to *always* build the bundled path,
rather than what I'm doing with CAHC and FADC where it's built as a
regular RPM.
It's not really sustainable right now for us to have both bundled and
not-bundled build paths - and we need to support co-installation with
dnf.
Another major issue is that we want to version lock with libhif -
right now our CI and both CAHC/FADC track libhif master, but that
means everything breaks if libhif breaks and we don't immediately
port.
git submodules solve all of these problems - the same as we're doing
with libglnx.
libglnx is *designed* for use as a git submodule, where as libhif
needs to support being both bundled and not-bundled. So we end up
with some hacks on our side, but I think it's all not too bad. I've
marked build rules with `# bundled libhif` so we know where to find
them later when libhif is stable.
Closes: #357
Approved by: jlebon
I've found it's a lot less code to have multiple builtins share live
in the same `.c` file where they can share things like options.
Also, rename `pkg-delete` -> `pkg-remove` since the canonical antonym
of `add` is `remove`.
Closes: #345
Approved by: jlebon
According to tmpfiles.d(5), files should follow the convention
<package>.conf or <package>-<part>.conf. So we rename
tmpfiles-ostree-integration.conf to rpm-ostree-0-integration.conf.
The 0 index is so that the autovar conf created by postprocess is
sourced *after* this one, so that `integration.conf` has higher
precedence if there are duplicate entries.
Closes: #325
Approved by: cgwalters
This builds upon the earlier prototype in
https://github.com/cgwalters/atomic-pkglayer
The `.origin` file says for a replicated installation:
[origin]
refspec=local:rhel-atomic-host/7/x86_64/standard
If you then run `rpm-ostree pkg-add strace`, it will result in a new tree with:
[origin]
baserefspec=local:rhel-atomic-host/7/x86_64/standard
[packages]
requested=strace;
Work still remaining here is to teach `rpm-ostree status` and
`rpm-ostree upgrade` about this.
Closes: #289
Approved by: cgwalters
This is just a tech demo. Example usage:
```
mkdir -p ~/.cache/rpmostree-containers
cd ~/.cache/rpmostree-containers
rpm-ostree container init
cp /etc/yum.repos.d/CentOS-Core.repo rpmmd.repos.d
rpm-ostree container assemble bash
rpm-ostree container assemble httpd
```
This is part of taking over from librpm. The most important high
level goal is fully unprivilged operation.
Right now we're basically starting to do what
http://libguestfs.org/supermin.1.html does, except in C, and
faster.
There's no reason that `compose tree` should require privileges.
However right now, things like `%post` scripts will want to run in the
target root - so we'd have to require `linux-user-chroot`.
Regardless of unprivileged operation though, another major thing we
can do is use our control over the unpacking process to do a lot more
sophisticated caching. We can build up a precise mapping of (rpm
ENVR, file path, selinux label) -> object and avoid rechecksumming
each time.
And even for files that aren't known, we can parallelize commit with
unpacking, etc. (Ok assuming treecompose-post won't mutate anything).
I'd like to experiment with different things that end up
reusing chunks of the rpm-ostree internals, such as libhif, the
helpers we already have around RPM, etc.
In this particular case I'm experimenting with unpacking/committing
RPM packages as non-root. Eventually most of this should end up as
internal private shared library, but it's convenient to have an
ABI-unstable and hidden "internals" command to run things directly.
This commit though just adds the scaffolding for "internals".
This is a step forward to deduplicating; the client tooling now calls
into the public API for diffs, rather than using the older internal
function.
Note: this patch also links the client against the public library.
On the plus side, we share some code between the library and the
binary now. On the downside, because `librpmostreepriv.la` is a
noinst library, its code text is duplicated between the shared library
and binary, at least until we either:
- Have the binary solely use the public shared library (like ostree does)
- Install `librpmostreepriv.so` to e.g. `/usr/lib64/rpm-ostree/librpmostreepriv.so`
without the headers being public
We currently have an internal-only library, but the sources for it are
in the same dir as the app. For future work on a public shared
library, we'll need a clearer source structure.
Start by just renaming the app files into `src/app/`, and the internal
private library into `src/libpriv/`, with the appropriate
`Makefile.am` changes.
Closes: https://github.com/projectatomic/rpm-ostree/pull/123
The high level goal is to deprecate libgsystem. I was trying to share
code between ostree/rpm-ostree, but it was too painful to commit to
forver frozen ABI for new utility APIs.
The git submodule approach will much more easily allow breaking
API/ABI, and iterate on APIs until they either land in GLib or not.
Note that libglnx will not use GFile*, so a full port to it will
involve also not using that. Thus, it will be necessarily
incremental; in the meantime we'll link to both libgsystem and
libglnx.
Remove redundant function _rpmostree_pull_progress().
Bumped ostree requirement to 2014.13, but this isn't quite right because
we actually need (unreleased) 2014.14. Post-release version bumps would
be useful here.
Verify uid/gid on files, directories and symlinks
Just output a msg when user/group is removed with no files
json-parsing: Add functions for strictly dealing with ints
passwd/json: Add simple scripts to convert passwd/group files to json data
docs: Check-passwd/groups and ignore-remove-users/groups JSON config. entries
As a followup to renaming the "rpm" command to "db", split the "db"
subcommands into separate source files in the style of "ostree admin"
and "rpm-ostree compose".
Also create rpmostree-rpm-util.[ch] as a place for common rpm-related
functions needed by the "db" subcommands.
No intentional functional changes here, just a bunch of copy-n-paste
and minor cleanup.
Eliminates some confusion between "rpm-ostree rpm" (or "atomic rpm")
commands versus actual "rpm" commands.
The "rpm" subcommand is retained as a hidden alias for the "db"
subcommand for backward-compatibility. It is not listed in --help
output.
Fixes#22
The current motivation for this is that
https://github.com/fedora-infra/fedmsg-atomic-composer
started using mock --new-chroot (which uses systemd-nspawn) to run
rpm-ostree, which in turn uses systemd-nspawn to run the post script.
Now systemd-nspawn is not really nestable (it wants to link up
journald, resolv.conf handling, etc).
First, dropping nspawn and going to raw containers fixes the nesting
problem.
Second, we don't need all the features of systemd-nspawn. We are ok
with log messages going to stdout, and we don't use networking, so no
resolv.conf is needed.
Third, this sets a bit of a stage for more sandboxing internally when
run on real systems. I already have a prototype branch which runs
librepo as an unprivileged user, that could be combined with this for
even stronger security.
Why not use systemd? Well...I'm still debating that. But the core
problem is systemd isn't a library in the C sense - to use its
sandboxing features we have to use unit files. It's harder to have a
daemon that looks like a single service from a management perspective,
but uses sandboxing internally.
We might as well do what systemd does and have a big header which
defines all of them, to more conveniently share them for libraries
that don't include them (like hawkey/librepo, as well as things that
libgsystem doesn't yet cover).
I was looking again at using hawkey/librepo, and realized just how
much I'd have to fight all of these libraries to avoid affecting
the running system.
What we really want to do with librepo/hawkey is run them effectively
unprivileged, and to hide the system's RPM database from them. This
is a baby step towards that, by confining our existing yum.
- /usr, /etc, and /var/lib/rpm are mounted read-only
- yum is now run under CLONE_NEWPID, to avoid stray %post scripts
affecting system processes
This is taking us closer to deeper integration in the treecompose side
with RPM instead of forking out to things.
It works except...we end up with the dreaded __db.001, .dbenv.lock
files =/ Best option would be to teach RPM how to open a database
really read-only. Failing that, could use the immutable bit?
Some downstreams want the ability to separate the compose tooling from
the client, for e.g. support reasons.
This approach supports generating a tarball without the source for the
compose command, and requires specifying a config option to disable
it.
This improves on the check-diff option by only downloading the
/usr/share/rpm directory to do a package diff. This prevents downloading
the whole deployment and the necessity to do a cleanup later.
It currently has the following sub-commands:
diff COMMIT COMMIT
for rpmtree diff.
list [prefix...] COMMIT...
for "yum list" like command.
version COMMIT...
for "yum version" like command.
...bunch of FIXME's, UI output isn't great, needs docs.
We also don't use the same code as the treediff on upgrade atm.
This allows administrators to configure between deployments and easily see which deployment
they are booted into as well as indicating which is chronologically most recent. This makes
the process more user-friendly, rather than requiring the user to remember which deployment
checksum corresponds to the most recent upgrade.
Currently on an Atomic compose, I'm seeing abrtd trying to write to
/usr/share/rpm/.dbenv.lock, which is denied by policy because it's
usr_t. There are multiple ways to address this, but there's no good
reason to leave the lock files and __db* files around.
rpm appears to operate correctly without them if calling process
merely gets EROFS.
This is exactly the code from "ostree admin switch", except it's
called "rebase" because in the future it will also carry along any
locally layered packages.
And do the same for "sign". This way we can have the compose server
utilities cleanly separated from what most people will see, which is
the client side tools.
The way this works is still fairly naive in that we hash in two
inputs:
1) The treefile JSON
2) The result of rpm -qa
If both of those are a hit, we reuse the existing commit.
This is just the start of moving more functionality into rpm-ostree,
with the goal of more tightly binding the rpm and ostree worldviews.
For exmaple, supporting package installation on top, showing the
package-level diff between trees, etc.
The web page previously bounced out to the "fedora-atomic" component -
but we really want a bit of web UI that's shared between products.
Like how Koji is a generic frontend.
In particular, this now comes with a start of a generic "repoweb".
We use the new unified OSTree API (OstreeSePolicy) to perform
labeling, rather than having our own here.
Also create a new rpm-ostree-relabeling-helper that is run to label
any leftover files such as /etc/fstab that we create offline, and also
to relabel the entire disk.
This allows us to skip the whole install process if the
RPMs haven't changed, which is a rather large win.
Part of this commit involves some code to attempt to talk to "yum
shell" for dependency resolution, in an attempt to avoid depsolving
twice, which just isn't really going to work, since "yum shell" isn't
an API as it turns out.
The only other real alternative is doing something PackageKit-like,
which is ~4000 lines of very nontrivial Python.
There are two major reasons:
1) I want to do things like process SELinux labels here, and that
type of thing is best done in C.
2) There are presently 3 languages in this code, and this takes us
down to just two.
