rockylinux-ostree-config/overlay.d/README.md
2022-10-18 11:48:48 -04:00

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These overlay directories are automatically committed to the build OSTree repo
by coreos-assembler. They are then explicitly included in our various manifest
files via `ostree-layers` (this used to be done automatically, but that's no
longer the case).
05core
------
This overlay matches `fedora-coreos-base.yaml`; core Ignition+ostree bits.
06el9
-----
This overlay includes content shared between FCOS and RHCOS/SCOS 9, but not
RHCOS 8.
08nouveau
---------
Blacklist the nouveau driver because it causes issues with some NVidia GPUs in EC2,
and we don't have a use case for FCOS with nouveau.
"Cannot boot an p3.2xlarge instance with RHCOS (g3.4xlarge is working)"
https://bugzilla.redhat.com/show_bug.cgi?id=1700056
09misc
------
Warning about `/etc/sysconfig`.
15fcos
------
Things that are more closely "Fedora CoreOS":
* disable password logins by default over SSH
* enable SSH keys written by Ignition and Afterburn
* branding (MOTD)
* enable FCOS-specific services by default
* display warnings on the console if no ignition config was provided or no ssh
key found.
16disable-zincati
-----------------
Disable Zincati on non-production streams:
https://github.com/coreos/fedora-coreos-tracker/issues/163
20platform-chrony
-----------------
Add static chrony configuration for NTP servers provided on platforms
such as `azure`, `aws`, `gcp`. The chrony config for these NTP servers
should override other chrony configuration (e.g. DHCP-provided)
configuration.