70af1d26b1
The recent memleak fixes motivated me to look at the bitrotted code to
run invocations of `ostree` in the test suite underneath valgrind.
There are a few things here. First, update suppressions file from
libhif, since I recently worked on it.
When running *uninstalled* as we now support, we need
`libtool --mode=execute` in the mix so it expands out to
the uninstalled binary and we don't valgrind the intermediate shell.
However, it's harder than that because we chdir into a tmpdir,
which defeats the libtool logic. AFAICS, the only fix for this
is to determine the realbin path before we chdir, and then unfortunately
we need to change every use of `ostree` to `${OSTREE}` =(
Then this immediately breaks for me on RHEL7 because my ancient
copy of `valgrind-3.10.0-16.el7.x86_64` is unaware of syscall 306, i.e.
`syncfs`.
But let's do this first before I dive into that.
Closes: #292
Approved by: krnowak
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|---|---|---|
| apidoc | ||
| bsdiff@1edf9f6568 | ||
| build-aux | ||
| buildutil | ||
| contrib/golang | ||
| docs | ||
| libglnx@afe3c3a861 | ||
| man | ||
| manual-tests | ||
| packaging | ||
| src | ||
| tests | ||
| .gitmodules | ||
| .travis.yml | ||
| autogen.sh | ||
| cfg.mk | ||
| configure.ac | ||
| CONTRIBUTING.md | ||
| COPYING | ||
| git.mk | ||
| GNUmakefile | ||
| maint.mk | ||
| Makefile-boot.am | ||
| Makefile-decls.am | ||
| Makefile-libostree-defines.am | ||
| Makefile-libostree.am | ||
| Makefile-man.am | ||
| Makefile-ostree.am | ||
| Makefile-otutil.am | ||
| Makefile-switchroot.am | ||
| Makefile-tests.am | ||
| Makefile.am | ||
| mkdocs.yml | ||
| ostree.doap | ||
| README-historical.md | ||
| README.md | ||
| TODO | ||
OSTree
New! See the docs online at Read The Docs (OSTree)
OSTree is a tool that combines a "git-like" model for committing and downloading bootable filesystem trees, along with a layer for deploying them and managing the bootloader configuration.
OSTree is like git in that it checksums individual files and has a content-addressed-object store. It's unlike git in that it "checks out" the files via hardlinks, and they should thus be immutable. Therefore, another way to think of OSTree is that it's just a more polished version of Linux VServer hardlinks.
Features:
- Atomic upgrades and rollback for the system
- Replicating content incrementally over HTTP via GPG signatures and "pinned TLS" support
- Support for parallel installing more than just 2 bootable roots
- Binary history on the server side (and client)
- Introspectable shared library API for build and deployment systems
This last point is important - you should think of the OSTree command line as effectively a "demo" for the shared library. The intent is that package managers, system upgrade tools, container build tools and the like use OSTree as a "deduplicating hardlink store".
Projects using OSTree
rpm-ostree is a tool that uses OSTree as a shared library, and supports committing RPMs into an OSTree repository, and deploying them on the client. This is appropriate for "fixed purpose" systems. There is in progress work for more sophisticated hybrid models, deeply integrating the RPM packaging with OSTree.
Project Atomic uses rpm-ostree to provide a minimal host for Docker formatted Linux containers. Replicating a base immutable OS, then using Docker for applications meshes together two different tools with different tradeoffs.
flatpak uses OSTree for desktop application containers.
GNOME Continuous is a custom build system designed for OSTree, using OpenEmbedded in concert with a custom build system to do continuous delivery from hundreds of git repositories.
Building
Releases are available as GPG signed git tags, and most recent versions support extended validation using git-evtag.
However, in order to build from a git clone, you must update the submodules. If you're packaging OSTree and want a tarball, I recommend using a "recursive git archive" script. There are several available online; this code in OSTree is an example.
Once you have a git clone or recursive archive, building is the same as almost every autotools project:
env NOCONFIGURE=1 ./autogen.sh
./configure --prefix=...
make
make install DESTDIR=/path/to/dest
More documentation
New! See the docs online at Read The Docs (OSTree)
Some more information is available on the old wiki page: https://wiki.gnome.org/Projects/OSTree
Contributing
See Contributing.