scooby87
f7cb9e7854
Follow-up to #3954 (postgres read-replica autoscaling via KEDA), closing the non-blocking review remarks tracked in #4187. Each change is small, isolated, and covered by a red→green test where it is a behaviour change. ## Changes - **fix(postgres): pin `job="kube-state-metrics"` on the autoscaler read-load query.** The trigger query joined on `kube_pod_labels` without the job pin the sibling `DatabaseAutoscaler*` alerts already carry; a duplicate `kube_pod_labels` series from another exporter would multiply the join. Pinned on every selector; unittest asserts it in both the base and lag-brake query shapes. - **fix(cozy-lib): reject a negative `minReplicaCount` in `cozy-lib.keda.scaledObject`.** Only `max >= min` was checked, so a mixed-sign pair (`min -5, max -3`) passed and rendered a nonsensical floor. Now failed closed before the ordering check, with a unit case. Also added coverage for the previously-untested `annotations` parameter. - **docs(postgres): correct the KEDA-missing guard rationale and note the gradual client-side rollout.** The guard comment still described the replaced drop-instances design; corrected to the seed design (a skipped ScaledObject leaves a fixed-size cluster with no HPA, not a collapse to 1). The cozyrds apply-strategy annotation now notes that the client-side switch rolls out per-app as each Application is next written through the aggregated API, not fleet-wide at upgrade. ## Testing `helm unittest` green: postgres 66/66, cozy-lib-tests 45/45, keda 12/12. Both behaviour changes are mutation-verified (reverting the fix reddens the suite). No generated artifacts affected (no `values.yaml`/`values.schema.json`/`Chart.yaml`/`README.md` changes). ## Release note ```release-note NONE ``` Closes #4187 <!-- This is an auto-generated comment: release notes by coderabbit.ai --> ## Summary by CodeRabbit - **Bug Fixes** - Improved PostgreSQL autoscaling metrics by ensuring pod data is sourced from the correct metrics exporter, preventing duplicate data from distorting scaling decisions. - Added validation to reject negative minimum replica counts. - Preserved caller-provided annotations on generated autoscaling resources. - **Documentation** - Clarified PostgreSQL autoscaling fallback behavior when the autoscaling controller is unavailable. - Documented the gradual transition of existing PostgreSQL resources to the updated apply behavior. <!-- end of auto-generated comment: release notes by coderabbit.ai -->
Cozystack
Cozystack is a free platform and framework for building clouds.
Cozystack is a CNCF Sandbox Level Project that was originally built and sponsored by Ænix.
With Cozystack, you can transform a bunch of servers into an intelligent system with a simple REST API for spawning Kubernetes clusters, Database-as-a-Service, virtual machines, load balancers, HTTP caching services, and other services with ease.
Use Cozystack to build your own cloud or provide a cost-effective development environment.
Use-Cases
-
Using Cozystack to build a public cloud
You can use Cozystack as a backend for a public cloud -
Using Cozystack to build a private cloud
You can use Cozystack as a platform to build a private cloud powered by Infrastructure-as-Code approach -
Using Cozystack as a Kubernetes distribution
You can use Cozystack as a Kubernetes distribution for Bare Metal
Documentation
The documentation is located on the cozystack.io website.
Read the Getting Started section for a quick start.
If you encounter any difficulties, start with the troubleshooting guide and work your way through the process that we've outlined.
Versioning
Versioning adheres to the Semantic Versioning principles.
A full list of the available releases is available in the GitHub repository's Release section.
Contributions
Contributions are highly appreciated and very welcomed!
In case of bugs, please check if the issue has already been opened by checking the GitHub Issues section. If it isn't, you can open a new one. A detailed report will help us replicate it, assess it, and work on a fix.
You can express your intention to on the fix on your own. Commits are used to generate the changelog, and their author will be referenced in it.
If you have a concrete feature request, open an issue. For a cross-cutting or architectural change, open a design proposal in the community repo. For questions or early ideas, use GitHub Discussions. See CONTRIBUTING.md for the full routing.
Community
You are welcome to join our Telegram group and come to our weekly community meetings. Add them to your Google Calendar or iCal for convenience.
License
Cozystack is licensed under Apache 2.0.
The code is provided as-is with no warranties.
Commercial Support
A list of companies providing commercial support for this project can be found on official site.