mirror of
https://github.com/kubernetes-sigs/descheduler.git
synced 2026-01-26 05:14:13 +01:00
d9d6ca64e9
this commit introduces a new customization on the existing PodsWithPVC
protection. this new customization allow users to make pods that refer
to a given storage class unevictable.
for example, to protect pods referring to `storage-class-0` and
`storage-class-1` this configuration can be used:
```yaml
apiVersion: "descheduler/v1alpha2"
kind: "DeschedulerPolicy"
profiles:
- name: ProfileName
pluginConfig:
- name: "DefaultEvictor"
args:
podProtections:
extraEnabled:
- PodsWithPVC
config:
PodsWithPVC:
protectedStorageClasses:
- name: storage-class-0
- name: storage-class-1
```
changes introduced by this pr:
1. the descheduler starts to observe persistent volume claims.
1. a new api field was introduced to allow per pod protection config.
1. rbac had to be adjusted (+persistentvolumeclaims).
82 lines
1.9 KiB
YAML
82 lines
1.9 KiB
YAML
---
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kind: ClusterRole
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apiVersion: rbac.authorization.k8s.io/v1
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metadata:
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name: descheduler-cluster-role
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rules:
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- apiGroups: ["events.k8s.io"]
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resources: ["events"]
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verbs: ["create", "update"]
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- apiGroups: [""]
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resources: ["nodes"]
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verbs: ["get", "watch", "list"]
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- apiGroups: [""]
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resources: ["namespaces"]
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verbs: ["get", "watch", "list"]
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- apiGroups: [""]
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resources: ["pods"]
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verbs: ["get", "watch", "list", "delete"]
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- apiGroups: [""]
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resources: ["pods/eviction"]
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verbs: ["create"]
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- apiGroups: ["scheduling.k8s.io"]
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resources: ["priorityclasses"]
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verbs: ["get", "watch", "list"]
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- apiGroups: ["policy"]
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resources: ["poddisruptionbudgets"]
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verbs: ["get", "watch", "list"]
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- apiGroups: ["coordination.k8s.io"]
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resources: ["leases"]
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verbs: ["create", "update"]
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- apiGroups: ["coordination.k8s.io"]
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resources: ["leases"]
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resourceNames: ["descheduler"]
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verbs: ["get", "patch", "delete"]
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- apiGroups: ["metrics.k8s.io"]
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resources: ["nodes", "pods"]
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verbs: ["get", "list"]
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- apiGroups: [""]
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resources: ["persistentvolumeclaims"]
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verbs: ["get", "watch", "list"]
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---
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kind: Role
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apiVersion: rbac.authorization.k8s.io/v1
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metadata:
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name: descheduler-role
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rules:
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- apiGroups: [""]
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resources: ["secrets"]
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verbs: ["get", "list", "watch"]
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---
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apiVersion: v1
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kind: ServiceAccount
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metadata:
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name: descheduler-sa
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namespace: kube-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: descheduler-cluster-role-binding
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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: descheduler-cluster-role
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subjects:
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- name: descheduler-sa
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kind: ServiceAccount
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namespace: kube-system
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---
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apiVersion: rbac.authorization.k8s.io/v1
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kind: RoleBinding
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metadata:
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name: descheduler-role-binding
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roleRef:
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apiGroup: rbac.authorization.k8s.io
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kind: Role
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name: descheduler-role
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subjects:
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- name: descheduler-sa
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kind: ServiceAccount
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namespace: kube-system
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