**Related issue:** Fully resolves
https://github.com/fleetdm/fleet/issues/34591.
## Testing
- [X] QA'd all new/changed functionality manually.
<img width="533" height="454" alt="Screenshot 2026-07-03 at 10 40 37 AM"
src="https://github.com/user-attachments/assets/892fb548-21c6-467c-b270-65f1c9338fdc"
/>
<img width="1287" height="259" alt="Screenshot 2026-07-03 at 10 41
55 AM"
src="https://github.com/user-attachments/assets/d3528b0c-0d05-4ace-8512-ab363241b97c"
/>
<img width="1077" height="123" alt="Screenshot 2026-07-03 at 10 41
46 AM"
src="https://github.com/user-attachments/assets/249e80de-320c-48f3-962a-59c98c736c54"
/>
<img width="725" height="208" alt="Screenshot 2026-07-03 at 10 41 32 AM"
src="https://github.com/user-attachments/assets/361764cf-26fc-4a44-b5d6-489d883a392b"
/>
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
* **New Features**
* Added CachyOS Linux to rolling-release OS detection and reporting.
* Added a CachyOS fleetd package/image variant and a new CachyOS fleetd
service for local testing.
* **Bug Fixes**
* Improved rolling-release OS version labeling for host “Vitals”
display.
* Updated OS inventory normalization so CachyOS is aggregated with Arch
Linux, including correct “rolling” version handling.
* **Tests**
* Expanded OS version ingest test coverage for rolling-release and
CachyOS scenarios.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
This eases the testing of fleetd updates (to `edge`) on Linux amd64
(from macOS).
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
* **Chores**
* Build process now accepts optional CLI configuration parameters
(--update-url, --orbit-channel, --desktop-channel, --osqueryd-channel)
to customize package generation during builds.
* Containerized fleetd services now use a restart policy that keeps
services running unless explicitly stopped, improving reliability and
reducing downtime.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
Removing some unmaintained/old docker images (Amazon Linux and CentOS),
and keeping most used/updated (Debian, Ubuntu, and Fedora).
Use cases for this:
- I used this to test wiping a linux host (without needing to wipe my
VMs).
- Test fleetd on linux amd64 on Apple Silicon (VMs usually are arm64).
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
* **New Features**
* Added support for Fedora 43 and Debian 13.4 container images.
* **Bug Fixes**
* Improved environment variable validation and configuration handling in
the fleetd initialization process.
* Enhanced build process reliability with stricter error handling.
* **Chores**
* Removed support for older container images (Amazon Linux 2023, CentOS
Stream 10, Fedora 41, Debian 12.8).
* Streamlined Docker Compose configuration with improved security
defaults.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
Useful while testing/developing #24385.
In the future we can push some of these to Fleet's Docker Hub and
include them in `fleetctl preview` to allow demoing of e.g. script
execution on linux devices.
Lucas Manuel Rodriguez