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argocd-apps/apps/base/priority-classes/priorityclasses.yaml
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unkinben ede25a3858 feat(platform): add priority-classes app with low/power/medium/high classes (#174)
## Summary
- New `apps/base/priority-classes/` app with four `PriorityClass` objects managed via the `platform` ArgoCD project
- Adds `apps/overlays/*/priority-classes` to the platform ApplicationSet generator
- Adds `priority-classes` namespace to platform AppProject destinations (required even for cluster-scoped resources)

| Class | Value | PreemptionPolicy | Intent |
|---|---|---|---|
| `low` | 100 | Never | Background work; evictable, won't preempt others |
| `power` | 100 | Never | Compute-heavy but expendable (e.g. AI/ML workloads) |
| `medium` | 10000 | PreemptLowerPriority | Standard services |
| `high` | 100000 | PreemptLowerPriority | Critical services; preempts lower-priority pods |

`PriorityClass` is already in the platform project's `clusterResourceWhitelist` so no project policy changes were needed.

## Test plan
- ArgoCD syncs `platform-priority-classes` successfully
- `kubectl get priorityclasses low power medium high` shows all four classes

Reviewed-on: #174
2026-05-26 23:41:54 +10:00

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980 B
YAML

---
apiVersion: scheduling.k8s.io/v1
kind: PriorityClass
metadata:
name: low
value: 100
preemptionPolicy: Never
globalDefault: false
description: "Low-importance workloads. Can be evicted under pressure but will not preempt other pods."
---
apiVersion: scheduling.k8s.io/v1
kind: PriorityClass
metadata:
name: power
value: 100
preemptionPolicy: Never
globalDefault: false
description: "Compute-heavy workloads with low scheduling importance. Evictable under pressure."
---
apiVersion: scheduling.k8s.io/v1
kind: PriorityClass
metadata:
name: medium
value: 10000
preemptionPolicy: PreemptLowerPriority
globalDefault: false
description: "Standard workloads. Will preempt low-priority pods if the cluster is under pressure."
---
apiVersion: scheduling.k8s.io/v1
kind: PriorityClass
metadata:
name: high
value: 100000
preemptionPolicy: PreemptLowerPriority
globalDefault: false
description: "High-importance services. Will preempt medium- and low-priority pods if necessary."