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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).