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Colin Walters 5a79ca9035 apply-live: Rework to use refs to store state 
Came out of discussion in https://github.com/coreos/rpm-ostree/pull/2581
around some racy code for checking for the live commit object.

The reliability of apply-live depends on the
underlying commits not being garbage collected.  Our diff logic
is in terms of ostree commits, not the physical filesystem (this
allows us to make various optimizations too).

Ultimately I think we should drive some of the live-apply
logic into libostree itself; we can more easily have an atomic
state file instead of the two split refs.

(Or perhaps what we should add to ostree is like a refs.d model
 where a single atomic file can refer to multiple commits)

For now though let's rework the code here to write refs.  We
retain the file in `/run` as just a "stamp file" that signals
that a deployment has had `apply-live` run.
2021-02-23 21:51:22 -05:00
.github github: update dependabot config 2021-01-20 09:32:14 -05:00
api-doc rust/treefile: Support dash convention for all options 2019-03-02 19:20:21 +00:00
buildutil buildutils: Add libglnx.m4 to .gitignore 2018-04-05 15:26:46 +00:00
ci rust: add missing SPDX-License-Identifier tag 2021-02-22 09:07:33 -05:00
completion Add support for bash completion 2019-03-01 21:36:39 +00:00
design Initial renaming pass of "jigdo" to "rojig" 2018-02-26 15:32:50 +00:00
docs ci: Drop tests/vmcheck/image.qcow2, use COSA_DIR/.cosa 2021-02-23 17:23:26 -05:00
experiments-and-demos/skopeo2ostree experiments-and-demos: New subdir with skopeo2ostree Dockerfile 2018-01-11 14:07:17 +00:00
libdnf@27ac9873ea Change main entrypoint to be Rust 2021-02-01 08:17:52 -05:00
libglnx@4c9055ac08 extensions: Don't try to chown RPM packages 2021-02-10 10:20:38 -05:00
man countme: Add DNF Count Me support 2021-01-13 14:53:50 -05:00
packaging Release 2021.2 2021-02-17 15:17:33 -05:00
rust apply-live: Rework to use refs to store state 2021-02-23 21:51:22 -05:00
src apply-live: Rework to use refs to store state 2021-02-23 21:51:22 -05:00
tests apply-live: Rework to use refs to store state 2021-02-23 21:51:22 -05:00
.cci.jenkinsfile ci: Drop tests/vmcheck/image.qcow2, use COSA_DIR/.cosa 2021-02-23 17:23:26 -05:00
.dir-locals.el .dir-locals.el: Global Emacs style settings 2017-01-12 16:09:16 +00:00
.editorconfig .editorconfig: Adjust for CXX files 2021-01-23 17:12:09 +01:00
.gitmodules Rebase to latest libdnf 2019-03-19 14:29:15 +00:00
.vimrc tree: add vimrc and editorconfig 2017-10-02 14:36:44 +00:00
autogen.sh build-sys: Fix use of libglnx configure bits 2017-12-15 16:32:39 +00:00
build.rs rust: Add SPDX-License-Identifier and validate it in ci/codestyle.sh 2021-02-19 15:56:23 -05:00
cargo-vendor-config Move the main Rust infra (i.e. Cargo.toml) to the toplevel 2020-12-09 17:42:35 -05:00
Cargo.lock build(deps): bump serde_yaml from 0.8.16 to 0.8.17 2021-02-23 11:07:28 -05:00
Cargo.toml build(deps): bump serde_yaml from 0.8.16 to 0.8.17 2021-02-23 11:07:28 -05:00
cbindgen.toml Switch to using cxx-rs for treefile 2021-02-11 15:44:38 -05:00
configure.ac Release 2021.2 2021-02-17 15:17:33 -05:00
CONTRIBUTING.md docs: fix ostree and CONTRIBUTING.md links 2016-07-12 15:46:53 +00:00
COPYING.GPL Clarify license situation to include GPLv2, relicense Rust code 2019-09-05 20:49:18 +00:00
COPYING.LGPL Clarify license situation to include GPLv2, relicense Rust code 2019-09-05 20:49:18 +00:00
git.mk build: Use git.mk, make git status clean 2016-03-10 14:36:44 -05:00
HACKING.md docs: Import Hacking page 2020-10-01 12:01:25 -04:00
LICENSE Clarify license situation to include GPLv2, relicense Rust code 2019-09-05 20:49:18 +00:00
Makefile-bash.am build: Hook up bash completions 2019-03-07 00:47:39 +00:00
Makefile-daemon.am Rename livefs → apply-live in more places 2021-01-12 03:15:49 -05:00
Makefile-decls.am Change main entrypoint to be Rust 2021-02-01 08:17:52 -05:00
Makefile-extra.inc ci: Verify rustfmt 2018-11-21 21:16:03 +00:00
Makefile-lib-defines.am lib: Add version macros and version checking function 2017-07-21 20:35:26 +00:00
Makefile-lib.am build: Drop introspection+clang hack 2021-02-10 14:30:37 -05:00
Makefile-libpriv.am Add a C++ rpmdb-diff API wrapping the C one, bind in Rust 2021-02-19 09:08:22 -05:00
Makefile-man.am countme: Add DNF Count Me support 2021-01-13 14:53:50 -05:00
Makefile-rpm-ostree.am app: Rename livefs.cxx → apply-live.cxx 2021-02-19 09:08:22 -05:00
Makefile-tests.am ci: Drop tests/vmcheck/image.qcow2, use COSA_DIR/.cosa 2021-02-23 17:23:26 -05:00
Makefile.am build-sys: Ignore .cosa 2021-02-16 18:18:27 -05:00
Makefile.bindings Makefile.bindings: Also generate pure rust/cxx.h 2021-01-27 19:36:34 -05:00
OWNERS OWNERS: extend/reorder approvers section 2020-10-30 19:42:31 +01:00
README.md README.md: Keep it short and sweet 2020-10-01 14:29:37 -04:00
RELEASE.md docs: Import Release page 2020-10-01 12:01:25 -04:00

README.md

rpm-ostree: A true hybrid image/package system

rpm-ostree is a hybrid image/package system. It combines libostree as a base image format, and accepts RPM on both the client and server side, sharing code with the dnf project; specifically libdnf. and thus bringing many of the benefits of both together.

                         +-----------------------------------------+
                         |                                         |
                         |       rpm-ostree (daemon + CLI)         |
                  +------>                                         <---------+
                  |      |     status, upgrade, rollback,          |         |
                  |      |     pkg layering, initramfs --enable    |         |
                  |      |                                         |         |
                  |      +-----------------------------------------+         |
                  |                                                          |
                  |                                                          |
                  |                                                          |
+-----------------|-------------------------+        +-----------------------|-----------------+
|                                           |        |                                         |
|         libostree (image system)          |        |            libdnf (pkg system)          |
|                                           |        |                                         |
|   C API, hardlink fs trees, system repo,  |        |    ties together libsolv (SAT solver)   |
|   commits, atomic bootloader swap         |        |    with librepo (RPM repo downloads)    |
|                                           |        |                                         |
+-------------------------------------------+        +-----------------------------------------+

Features:

  • Transactional, background image-based (versioned/checksummed) upgrades
  • OS rollback without affecting user data (/usr but not /etc, /var) via libostree
  • Client-side package layering (and overrides)
  • Easily make your own: rpm-ostree compose tree and CoreOS Assembler

Documentation

For more information, see the project documentation or the project documentation website.

License

rpm-ostree includes code licensed under GPLv2+, LGPLv2+, (Apache 2.0 OR MIT). For more information, see LICENSE.