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README.md: Add arch diagram, tweak wording, add talk links

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There's a lot more we could do here but I think the architecture
diagram in particular helps a lot.

Closes: #1245
Approved by: jlebon
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Colin Walters 2018-02-13 16:15:10 -05:00 committed by Atomic Bot
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README.md
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@ -1,17 +1,39 @@
# rpm-ostree Overview
# rpm-ostree: A true hybrid image/package system
rpm-ostree is a hybrid image/package system. It uses
[OSTree](https://ostree.readthedocs.io/en/latest/) as a base image
format, and supports RPM on both the client and server side using
[libdnf](https://github.com/rpm-software-management/libdnf).
rpm-ostree combines [libostree](https://ostree.readthedocs.io/en/latest/) (an image system),
with [libdnf](https://github.com/rpm-software-management/libdnf) (a package system), 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) |
| | | |
+-------------------------------------------+ +-----------------------------------------+
```
For more information, see the online manual: [Read The Docs (rpm-ostree)](https://rpm-ostree.readthedocs.org/en/latest/)
**Features:**
- Atomic upgrades and rollback for host system updates
- A server side tool to consume RPMs and commit them to an OSTree repository
- A system daemon to consume OSTree commits as updates
- 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`
Projects using rpm-ostree
--------------------------
@ -24,3 +46,16 @@ Manual
------
For more information, see the online manual: [Read The Docs (rpm-ostree)](https://rpm-ostree.readthedocs.org/en/latest/)
Talks and media
-----
A number of Project Atomic talks are available; see for
example [this post](https://lists.projectatomic.io/projectatomic-archives/atomic-devel/2018-January/msg00057.html) which
has a bigger collection that also includes talks on containers.
rpm-ostree specific talks:
* devconf.cz 2018: [Colin Walters: Hybrid image/package OS updates with rpm-ostree](https://www.youtube.com/watch?v=eWoFpOoA-tE) [slides](https://fedorapeople.org/~walters/2018.01-devconf/index.html)
* devconf.cz 2018: [Peter Robinson: Using Fedora and OSTree for IoT](https://www.youtube.com/watch?v=mRqV38qT-wc)