unkinben
4d877531b0
## Why Rolls out the Vertical Pod Autoscaler control plane so the estate can gather right-sizing recommendations for every workload (advise mode, follow-up PR adds the per-workload VPA objects). Deploys the **recommender only**: advise mode never mutates pods, so the updater and admission-controller (and its mutating webhook) are intentionally omitted — fewer moving parts, no webhook in the admission path. ## Changes - Add `apps/base/vpa-system/`: namespace, VPA CRDs (verticalpodautoscalers + verticalpodautoscalercheckpoints) pulled from the kubernetes/autoscaler repo at the pinned tag (same upstream-raw pattern node-feature-discovery uses), recommender-scoped RBAC (SA + metrics-reader/actor/status-actor/checkpoint-actor/target-reader), and the recommender Deployment. - Add `apps/overlays/au-syd1/vpa-system/` referencing the base. - Register `apps/overlays/*/vpa-system` in the platform ApplicationSet. ## Notes - Pins upstream **vertical-pod-autoscaler-1.7.0** (latest stable, 2026-05-29) for both CRDs and the `registry.k8s.io/autoscaling/vpa-recommender:1.7.0` image. - No platform AppProject change needed: `*-system` namespace destination plus CustomResourceDefinition/ClusterRole/ClusterRoleBinding are already whitelisted. - The recommender image is pull-through-cached via terraform-artifactapi PR #13 (merge gate below). ## Merge gate - Requires terraform-artifactapi PR #13 (adds the `autoscaling/vpa-` pattern to the k8s-registry docker remote) to land first so the recommender image is served through the cache. Reviewed-on: #281 Co-authored-by: Ben Vincent <ben@unkin.net> Co-committed-by: Ben Vincent <ben@unkin.net>
140 lines
3.6 KiB
YAML
140 lines
3.6 KiB
YAML
---
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apiVersion: v1
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kind: ServiceAccount
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metadata:
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name: vpa-recommender
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namespace: vpa-system
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---
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# Read pods from the metrics API (metrics-server) to build recommendations.
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apiVersion: rbac.authorization.k8s.io/v1
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kind: ClusterRole
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metadata:
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name: vpa-system:metrics-reader
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rules:
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- apiGroups: ["metrics.k8s.io"]
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resources: ["pods"]
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verbs: ["get", "list"]
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---
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# Watch pods/nodes/limitranges and VPA objects; emit events.
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apiVersion: rbac.authorization.k8s.io/v1
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kind: ClusterRole
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metadata:
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name: vpa-system:actor
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rules:
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- apiGroups: [""]
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resources: ["pods", "nodes", "limitranges"]
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verbs: ["get", "list", "watch"]
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- apiGroups: ["", "events.k8s.io"]
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resources: ["events"]
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verbs: ["get", "list", "watch", "create", "update", "patch"]
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- apiGroups: ["autoscaling.k8s.io"]
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resources: ["verticalpodautoscalers"]
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verbs: ["get", "list", "watch"]
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---
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# Write recommendations back to the VPA object's status subresource.
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apiVersion: rbac.authorization.k8s.io/v1
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kind: ClusterRole
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metadata:
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name: vpa-system:status-actor
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rules:
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- apiGroups: ["autoscaling.k8s.io"]
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resources: ["verticalpodautoscalers/status"]
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verbs: ["get", "patch"]
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---
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# Manage recommender checkpoints (recovery of history after restart).
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apiVersion: rbac.authorization.k8s.io/v1
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kind: ClusterRole
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metadata:
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name: vpa-system:checkpoint-actor
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rules:
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- apiGroups: ["autoscaling.k8s.io"]
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resources: ["verticalpodautoscalercheckpoints"]
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verbs: ["get", "list", "watch", "create", "patch", "delete"]
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- apiGroups: [""]
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resources: ["namespaces"]
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verbs: ["get", "list"]
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---
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# Resolve VPA targetRef workloads and their scale subresource.
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apiVersion: rbac.authorization.k8s.io/v1
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kind: ClusterRole
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metadata:
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name: vpa-system:target-reader
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rules:
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- apiGroups: ["*"]
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resources: ["*/scale"]
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verbs: ["get", "watch"]
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- apiGroups: [""]
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resources: ["replicationcontrollers"]
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verbs: ["get", "list", "watch"]
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- apiGroups: ["apps"]
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resources: ["daemonsets", "deployments", "replicasets", "statefulsets"]
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verbs: ["get", "list", "watch"]
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- apiGroups: ["batch"]
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resources: ["jobs", "cronjobs"]
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verbs: ["get", "list", "watch"]
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---
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apiVersion: rbac.authorization.k8s.io/v1
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kind: ClusterRoleBinding
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metadata:
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name: vpa-system:metrics-reader
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roleRef:
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apiGroup: rbac.authorization.k8s.io
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kind: ClusterRole
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name: vpa-system:metrics-reader
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subjects:
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- kind: ServiceAccount
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name: vpa-recommender
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namespace: vpa-system
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---
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apiVersion: rbac.authorization.k8s.io/v1
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kind: ClusterRoleBinding
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metadata:
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name: vpa-system:actor
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roleRef:
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apiGroup: rbac.authorization.k8s.io
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kind: ClusterRole
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name: vpa-system:actor
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subjects:
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- kind: ServiceAccount
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name: vpa-recommender
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namespace: vpa-system
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---
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apiVersion: rbac.authorization.k8s.io/v1
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kind: ClusterRoleBinding
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metadata:
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name: vpa-system:status-actor
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roleRef:
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apiGroup: rbac.authorization.k8s.io
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kind: ClusterRole
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name: vpa-system:status-actor
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subjects:
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- kind: ServiceAccount
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name: vpa-recommender
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namespace: vpa-system
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---
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apiVersion: rbac.authorization.k8s.io/v1
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kind: ClusterRoleBinding
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metadata:
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name: vpa-system:checkpoint-actor
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roleRef:
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apiGroup: rbac.authorization.k8s.io
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kind: ClusterRole
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name: vpa-system:checkpoint-actor
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subjects:
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- kind: ServiceAccount
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name: vpa-recommender
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namespace: vpa-system
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---
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apiVersion: rbac.authorization.k8s.io/v1
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kind: ClusterRoleBinding
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metadata:
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name: vpa-system:target-reader
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roleRef:
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apiGroup: rbac.authorization.k8s.io
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kind: ClusterRole
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name: vpa-system:target-reader
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subjects:
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- kind: ServiceAccount
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name: vpa-recommender
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namespace: vpa-system
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