Operating system and container binary deployment and upgrades
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Colin Walters 2b8d586c5a switchroot: Ensure /sysroot is set to "private" propagation
Downstream BZ: https://bugzilla.redhat.com/show_bug.cgi?id=1498281

This came up as a problem with `oci-umount` which was trying to ensure some host
mounts like `/var/lib/containers` don't leak into privileged containers.  But
since our `/sysroot` mount wasn't private we also got a copy there.

We should have done this from the very start - it makes `findmnt` way, way less
ugly and is just the obviously right thing to do, will possibly create world
peace etc.

Closes: #1438
Approved by: rhvgoyal
2018-01-30 15:05:37 +00:00
apidoc lib/core: Add a "break hardlink" API 2017-12-14 21:56:26 +00:00
bash bash/ostree: add missing --add-metadata option 2018-01-10 01:42:56 +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 tests: allow specifying tmpdir 2017-09-21 21:50:40 +00:00
ci ci: Bump flatpak version (and build to f27) 2018-01-24 23:24:58 +00:00
coccinelle tree-wide: Add+run spatch to use glnx_throw() 2017-05-26 19:27:11 +00:00
docs Add support for devicetree files alongside the kernel and initramfs 2018-01-16 22:54:53 +00:00
libglnx@96b1fd9578 Bump libglnx, use "n items" progress for fsck 2017-12-15 15:50:34 +00:00
man man: Add man page for find-remotes 2018-01-15 19:26:43 +00:00
manual-tests tests/delta-crosscheck: Disable fsync 2017-12-01 15:09:14 +00:00
rust rust: Support make dist -> cargo vendor 2017-02-07 16:50:37 +00:00
src switchroot: Ensure /sysroot is set to "private" propagation 2018-01-30 15:05:37 +00:00
tests bin/delta: Fix compilation with relative subdirs --filename 2018-01-22 14:02:34 +00:00
.dir-locals.el .dir-locals.el: Standard Emacs indentation config 2017-01-12 16:09:34 +00:00
.editorconfig Add a .vimrc and .editorconfig 2017-09-21 22:03:11 +00:00
.gitmodules bsdiff: change submodule location 2015-03-26 23:33:07 +01:00
.papr.yml ci: Bump flatpak version (and build to f27) 2018-01-24 23:24:58 +00:00
.travis.yml ci: Move travis scripts from tests/ → ci/ 2017-05-09 18:25:13 +00:00
.vimrc Add a .vimrc and .editorconfig 2017-09-21 22:03:11 +00:00
autogen.sh Make sure *.am.inc are up to date before make dist 2017-10-16 13:53:06 +00:00
cfg.mk tests: Add a test case for path traversal in a dirtree 2018-01-12 19:38:34 +00:00
configure.ac build-sys: Post-release version bump 2018-01-15 15:18:59 +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 build/maint.mk: Comment out setting of LC_ALL 2017-08-23 17:41:06 +00:00
Makefile-bash.am build: Add distcheck configure flags to fix systemd and bash-completion 2017-08-22 17:37:48 +00:00
Makefile-boot.am build: Ensure ostree-tmpfiles.conf is distributed 2017-08-22 17:37:48 +00:00
Makefile-decls.am build-sys: Minor makefile tweaks 2017-01-04 16:32:11 +00:00
Makefile-libostree-defines.am lib/repo-finder: Add OstreeRepoFinderOverride 2017-10-19 19:11:58 +00:00
Makefile-libostree.am build-sys: Link with -ldl for rust build 2018-01-04 12:23:06 +00:00
Makefile-man.am man: Add man page for find-remotes 2018-01-15 19:26:43 +00:00
Makefile-ostree.am create-usb: Add a create-usb command to complement OstreeRepoFinderMount 2017-09-27 14:44:00 +00:00
Makefile-otutil.am Add OtVariantBuilder 2017-10-27 21:49:26 +00:00
Makefile-switchroot.am build: Add distcheck configure flags to fix systemd and bash-completion 2017-08-22 17:37:48 +00:00
Makefile-tests.am tests: Add a test case for path traversal in a dirtree 2018-01-12 19:38:34 +00:00
Makefile.am build-sys: Use -fno-strict-aliasing by default 2017-12-15 14:52:38 +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: Link to BuildStream 2017-12-04 18:26:51 +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", though it is still appropriate to use the previous name: "OSTree" (or "ostree"). The focus is on projects which use libostree's shared library, rather than users directly invoking the command line tools (except for build systems). 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.

As implied above, libostree is both a shared 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:

  • Transactional 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
  • Flexible support for multiple branches and repositories, supporting projects like flatpak which use libostree for applications, rather than hosts.

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.

The BuildStream build and integration tool uses libostree as a caching system to store and share built artifacts.

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:

git submodule update --init
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)

Contributing

See Contributing.