Add udev rules and scripts to support specific clouds

[mike-nguyen]

This is work coming out of #66. From various conversations, AWS does not require a cloud agent and the only thing that is needed is the following udev rules + script.

coreos/init#268

[dustymabe]

this looks like something we should do for all of fedora (i.e. add udev rules for various clouds). It looks like the cloud-init package has some for azure:

[vagrant@vanilla-f29 ~]$ rpm -ql cloud-init | grep rules.d
/lib/udev/rules.d/66-azure-ephemeral.rules

and Container Linux has various rules as well: https://github.com/coreos/init/tree/master/udev/rules.d

@sgallagher do you know of the best place to put a bunch of rules like this?

[sgallagher]

@dustymabe I don't know the answer to that, unfortunately. It would probably be best to mail devel@lists.fedoraproject.org and see what you get there.

[bgilbert]

Retitled bug to generalize to other clouds.

[dustymabe]

proposed text for devel list email:

Subject: where to put udev rules for to support cloud providers

context: https://github.com/coreos/fedora-coreos-tracker/issues/104

There are some udev rules that support various hardware on different cloud providers
that we'd like to provide as part of Fedora CoreOS so it can operate on those platforms
as expected. In the past these udev rules could be provided by the cloud-init package
or by the cloud specific agent for a particular cloud provider. In Fedora CoreOS we are
attempting to not ship cloud agents but we'd like to ship various bits like these udev
rules. The question is: where (what package) should provide these rules?

One thing to think about is that we think this work would benefit the Fedora Cloud Base
image as well, so we are trying not to make it specific to Fedora CoreOS.

- Should they go into a `fedora-release-coreos` and `fedora-release-cloud` package?
    - Both of these share the same srpm
- Should they go into a `cloud-platforms` package where we could possibly put other
  cloud supporting bits as well?

Thanks
Fedora CoreOS Team

will send it tomorrow unless anyone objects

[bgilbert]

In Fedora CoreOS we are attempting to not ship cloud agents

Maybe clarify that we're not shipping cloud-init either? LGTM otherwise.

[dustymabe]

In Fedora CoreOS we are attempting to not ship cloud agents

Maybe clarify that we're not shipping cloud-init either? LGTM otherwise.

Done.. Started the devel list discussion here.

[dustymabe]

seems like the one suggestion we got was to maybe try to get them into the udev rules systemd carries. Anyone opposed to trying that route?

[dustymabe]

opened: systemd/systemd#11532 to discuss with systemd team

[darkmuggle]

@bh7cw can you pick this up?

[davdunc]

a peripheral dependency was discussed today related to private bug for BZ#1817209

[ravanelli]

Check also this PR: coreos/fedora-coreos-config#2350 where we are adding GCP udev rules in our overlay.

We also have a bug open to request those rules to be added as a subpackage to the google-compute-engine-guest-configs SRPM, which is an intermediate solution.

Ultimately we'd like to get all these rules centralized in systemd and the various clouds working together there to maintain them. See systemd/systemd#11532

[jlebon]

This seems like a duplicate of e.g. #601, #1165, #1122. Do we want to close this out or repurpose it to track the "let's put all those rules into a shared space"?