d2bd8500da
There are a few reasons to do this. First, systemd changed to refuse mounts on
symlinks, and hence if one *wants* "/tmp-on-tmpfs", one would need to write a
different `sysroot-tmp.mount` unit.
Second, the original rationale for having this symlink was that if you had
multiple ostree stateroots ("osnames"), it's nicer if they had the same `/tmp`
to avoid duplication. But in practice today that's already an issue due to
`/var/tmp`, and further the multiple-stateroot case is pretty unusual. And that
case is *further* broken by SELinux (if one wanted to have e.g. an Ubuntu and
Fedora) stateroots. So let's fully decouple this and make `/tmp` a plain
old directory by default, so systemd's `tmp.mount` can become useful.
Now, things get interesting for the case where someone wants a physical `/tmp`
that *does* persist across reboots. Right now, if one just did a `systemctl mask
tmp.mount` as we do in Fedora Atomic Host's cloud images, you'd get a semantic
where `/tmp` stays per-deployment, which is weird. Our recommendation for
that should likely be to set up a bind mount for `/tmp` → `/var/tmp`.
For now, this stays an option to ensure compatibility; if FAH Cloud images
want to stay with "physical /tmp", then we'd have to change the kickstart.
Closes: https://github.com/projectatomic/rpm-ostree/issues/669
Closes: #778
Approved by: jlebon
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| .github | ||
| api-doc | ||
| buildutil | ||
| ci | ||
| design | ||
| docs | ||
| libdnf@2086268d59 | ||
| libglnx@32231fdb52 | ||
| man | ||
| packaging | ||
| scripts | ||
| src | ||
| tests | ||
| vagrant | ||
| .dir-locals.el | ||
| .gitmodules | ||
| .redhat-ci.yml | ||
| autogen.sh | ||
| configure.ac | ||
| CONTRIBUTING.md | ||
| COPYING | ||
| git.mk | ||
| HACKING.md | ||
| LICENSE | ||
| Makefile-daemon.am | ||
| Makefile-decls.am | ||
| Makefile-lib-defines.am | ||
| Makefile-lib.am | ||
| Makefile-libdnf.am | ||
| Makefile-libpriv.am | ||
| Makefile-man.am | ||
| Makefile-rpm-ostree.am | ||
| Makefile-tests.am | ||
| Makefile.am | ||
| mkdocs.yml | ||
| README.md | ||
| TODO | ||
| Vagrantfile | ||
rpm-ostree Overview
rpm-ostree is a hybrid image/package system. It uses OSTree as a base image format, and supports RPM on both the client and server side using libdnf.
For more information, see the online manual: Read The Docs (rpm-ostree)
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
Projects using rpm-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.
Manual
For more information, see the online manual: Read The Docs (rpm-ostree)