Customize RPM-OSTree

[Oliver Rainer]

Hi, I was following the advices of https://www.projectatomic.io/blog/2017/12/compose-custom-ostree/ to build a custom OSTree. I am not able to do same steps for Fedora CoreOS (stable stream) because i do not know where to get the package configuration (like fedora-atomic-host-base.json) files.

My question is the following...
Am I leaving now the intended way of updating CoreOS or is there a way to build custom update ostrees? 
The background is that our baremetal device most probably will be offline resp. has no public internet access at customer sites (not fully offline, but only accessible through company network)

Thanks for any advice

[Joel Kessler]

I agree, I think it would be useful. 
Maybe to be able to define a custom stream, would be great as well.
My idea would be something like this: coreos.inst.stream={url} -> url could be: http(s)://  or file://

The upfollowing updates should be gatherd from this defined stream as well. This would require to be able to manipulate and change the ostree of fedora coreos before it has been composed.

Basically: https://pagure.io/fedora-atomic for fedora coreos. (fedora-atomic-host.json -> fedora-coreos-host.json?)

[Vadim Rutkovsky]

On Wed, Feb 5, 2020 at 4:43 PM Oliver Rainer  wrote:
> Hi, I was following the advices of https://www.projectatomic.io/blog/2017/12/compose-custom-ostree/ to build a custom OSTree. I am not able to do same steps for Fedora CoreOS (stable stream) because i do not know where to get the package configuration (like fedora-atomic-host-base.json) files.

Fedora CoreOS uses https://github.com/coreos/coreos-assembler as a
builder and stores configuration at
https://github.com/coreos/fedora-coreos-config/