Operating system and container binary deployment and upgrades
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Colin Walters 0e6d23835b lib/sysroot: Add some g_prefix_error() for ostree_sysroot_cleanup()
We saw this fail in a CI run. We've been trying to add strategic error prefixing
as a general rule, and this specific instance may help debug.

Closes: #929
Approved by: pwithnall
2017-06-15 00:08:29 +00:00
apidoc lib/sysroot: Add API to get pending/rollback for given stateroot 2017-06-14 09:56:01 +00:00
bsdiff@1edf9f6568 bsdiff: change submodule location 2015-03-26 23:33:07 +01:00
build-aux Add infrastructure for "make syntax-check" 2015-01-30 15:27:36 +01:00
buildutil build: Use AM_TESTS_ENVIRONMENT rather than TESTS_ENVIRONMENT 2017-05-23 17:51:27 +00:00
ci ci: Add CentOS 7 build 2017-06-09 18:30:15 +00:00
coccinelle tree-wide: Add+run spatch to use glnx_throw() 2017-05-26 19:27:11 +00:00
docs manual: document bare-user-only repo mode 2017-06-02 17:46:16 +00:00
libglnx@32231fdb52 libglnx: bump and use new helper methods 2017-05-12 21:02:16 +00:00
man Rename "osname" → "stateroot" 2017-04-24 16:09:51 +00:00
manual-tests repo+tests: Add [core]disable-xattrs=true, use it on overlayfs 2017-03-24 22:16:43 +00:00
rust rust: Support make dist -> cargo vendor 2017-02-07 16:50:37 +00:00
src lib/sysroot: Add some g_prefix_error() for ostree_sysroot_cleanup() 2017-06-15 00:08:29 +00:00
tests lib/sysroot: Add API to get pending/rollback for given stateroot 2017-06-14 09:56:01 +00:00
.dir-locals.el .dir-locals.el: Standard Emacs indentation config 2017-01-12 16:09:34 +00:00
.gitmodules bsdiff: change submodule location 2015-03-26 23:33:07 +01:00
.papr.yml ci: Add CentOS 7 build 2017-06-09 18:30:15 +00:00
.travis.yml ci: Move travis scripts from tests/ → ci/ 2017-05-09 18:25:13 +00:00
autogen.sh libglnx porting: Migrate to new tempfile code 2016-07-29 19:02:41 +00:00
cfg.mk cfg.mk: Add a syntax check for a redundant : in glnx_throw 2017-03-23 19:09:52 +00:00
configure.ac build-sys: post-release version bump 2017-06-14 14:51:25 +00:00
CONTRIBUTING.md Rewrite manual in mkdocs 2016-01-28 09:31:37 -05:00
COPYING COPYING: Update to latest FSF with current address 2014-01-16 10:22:30 -05:00
git.mk Use git.mk 2016-04-07 12:49:40 +00:00
GNUmakefile Add infrastructure for "make syntax-check" 2015-01-30 15:27:36 +01:00
maint.mk tests/installed: New installed, privileged tests using Fedora AH 2017-04-25 15:15:06 +00:00
Makefile-boot.am Move ostree-* executables to /usr/lib/ostree 2016-08-11 14:04:59 +00:00
Makefile-decls.am build-sys: Minor makefile tweaks 2017-01-04 16:32:11 +00:00
Makefile-libostree-defines.am libostree: Make OstreeRemote a public and internal API 2017-05-08 18:48:07 +00:00
Makefile-libostree.am Switch to using a systemd generator for /var 2017-05-16 16:13:05 +00:00
Makefile-man.am Don't install trivial-httpd man page if not enabled 2017-06-02 19:36:56 +00:00
Makefile-ostree.am libostree: add versioning macros 2017-03-11 15:38:56 +00:00
Makefile-otutil.am libutil: Delete unused threadpool wrapper 2017-03-30 13:14:43 +00:00
Makefile-switchroot.am Switch to using a systemd generator for /var 2017-05-16 16:13:05 +00:00
Makefile-tests.am build: Use AM_TESTS_ENVIRONMENT rather than TESTS_ENVIRONMENT 2017-05-23 17:51:27 +00:00
Makefile.am build: Use cd $(srcdir) instead of git -C 2017-05-17 13:45:58 +00:00
mkdocs.yml docs: Add a section on repository management 2016-03-29 14:10:24 +00:00
ostree.doap doap category infrastructure 2014-07-31 11:26:32 +02:00
README-historical.md README: Just link to wiki, move most of it to README-historical.md 2014-01-20 18:00:09 -05:00
README.md README.md: Add more/clean up links to consuming projects 2017-02-21 16:34:14 +00:00
TODO Fix repeated words. 2015-01-30 15:27:36 +01:00

libOSTree

New! See the docs online at Read The Docs (OSTree)


This project is now known as "libOSTree", renamed from "OSTree"; the focus is on the shared library. However, in most of the rest of the documentation, we will use the term "OSTree", since it's slightly shorter, and changing all documentation at once is impractical. We expect to transition to the new name over time.

libOSTree is a library and suite of command line tools 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.

The core OSTree model 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

meta-updater is a layer available for OpenEmbedded systems.

QtOTA is Qt's over-the-air update framework which uses libostree.

rpm-ostree is a next-generation hybrid package/image system for Fedora and CentOS, used by the Atomic Host project. By default it uses libostree to atomically replicate a base OS (all dependency resolution is done on the server), but it supports "package layering", where additional RPMs can be layered on top of the base. This brings a "best of both worlds"" model for image and package systems.

flatpak uses libostree for desktop application containers. Unlike most of the other systems here, flatpak does not use the "libostree host system" aspects (e.g. bootloader management), just the "git-like hardlink dedup". For example, flatpak supports a per-user OSTree repository.

Endless OS uses libostree for their host system as well as flatpak. See their eos-updater and deb-ostree-builder projects.

GNOME Continuous is where OSTree was born - as a high performance continuous delivery/testing system for GNOME.

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.