test(persistence): add comprehensive cache volume tests

Add helm-unittest tests for dedicated cache volume persistence:
- Default emptyDir behavior
- PVC creation when enabled
- hostPath configuration
- Volume mount verification
- PVC size, access mode, storage class configuration
- Annotations support
- Existing claim usage
- Type-specific behavior (pvc vs hostPath vs emptyDir)

Add NOTES.txt with persistence information:
- Show config, media, and cache volume types
- Display cache volume details when enabled
- Benefits explanation for cache volume
- Warning for hostPath usage

Tests ensure cache persistence works correctly for all scenarios.

Co-Authored-By: Claude <noreply@anthropic.com>
Signed-off-by: Aleksei Sviridkin <f@lex.la>
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Aleksei SviridkinandClaude committed 2025-11-07 19:54:22 +03:00 Unverified
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Thank you for installing {{ .Chart.Name }}.
Your release is named {{ .Release.Name }}.
To learn more about the release, try:
$ helm status {{ .Release.Name }}
$ helm get all {{ .Release.Name }}
{{- if .Values.ingress.enabled }}
Jellyfin is available via Ingress at:
{{- range .Values.ingress.hosts }}
http{{ if $.Values.ingress.tls }}s{{ end }}://{{ .host }}{{ (index .paths 0).path }}
{{- end }}
{{- else }}
To access Jellyfin, you can use port-forwarding:
$ kubectl port-forward --namespace {{ .Release.Namespace }} svc/{{ include "jellyfin.fullname" . }} {{ .Values.service.port }}:{{ .Values.service.port }}
Then visit http://localhost:{{ .Values.service.port }} in your browser.
{{- end }}
Persistence Configuration:
Config: {{ if .Values.persistence.config.enabled }}{{ .Values.persistence.config.type | default "pvc" }}{{ if .Values.persistence.config.existingClaim }} (existing: {{ .Values.persistence.config.existingClaim }}){{ end }}{{ else }}emptyDir{{ end }}
Media: {{ if .Values.persistence.media.enabled }}{{ .Values.persistence.media.type | default "pvc" }}{{ if .Values.persistence.media.existingClaim }} (existing: {{ .Values.persistence.media.existingClaim }}){{ end }}{{ else }}emptyDir{{ end }}
Cache: {{ if .Values.persistence.cache.enabled }}{{ .Values.persistence.cache.type | default "pvc" }}{{ if .Values.persistence.cache.existingClaim }} (existing: {{ .Values.persistence.cache.existingClaim }}){{ end }}{{ else }}emptyDir{{ end }}
{{- if and .Values.persistence.cache.enabled (eq .Values.persistence.cache.type "pvc") }}
Cache Volume:
Dedicated cache volume is enabled for improved performance.
Size: {{ .Values.persistence.cache.size }}
Access Mode: {{ .Values.persistence.cache.accessMode }}
{{- if .Values.persistence.cache.storageClass }}
Storage Class: {{ .Values.persistence.cache.storageClass }}
{{- end }}
Benefits:
- Faster transcoding and metadata operations
- Separate cache lifecycle from config/media
- Can use faster storage class (SSD) for cache
{{- end }}
{{- if and .Values.persistence.cache.enabled (eq .Values.persistence.cache.type "hostPath") }}
⚠ WARNING: Using hostPath for cache - ensure {{ .Values.persistence.cache.hostPath }} exists on the node
{{- end }}
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suite: test cache persistence
templates:
- deployment.yaml
- persistentVolumeClaim.yaml
tests:
# Deployment volume mount tests
- it: should mount cache as emptyDir by default
template: deployment.yaml
asserts:
- contains:
path: spec.template.spec.volumes
content:
name: cache
emptyDir: {}
- it: should mount cache PVC when enabled
template: deployment.yaml
set:
persistence.cache.enabled: true
persistence.cache.type: pvc
asserts:
- contains:
path: spec.template.spec.volumes
content:
name: cache
persistentVolumeClaim:
claimName: RELEASE-NAME-jellyfin-cache
- it: should mount cache from hostPath when configured
template: deployment.yaml
set:
persistence.cache.enabled: true
persistence.cache.type: hostPath
persistence.cache.hostPath: /mnt/jellyfin-cache
asserts:
- contains:
path: spec.template.spec.volumes
content:
name: cache
hostPath:
path: /mnt/jellyfin-cache
- it: should mount cache at correct path
template: deployment.yaml
asserts:
- contains:
path: spec.template.spec.containers[0].volumeMounts
content:
name: cache
mountPath: /cache
# PVC tests
- it: should not create cache PVC by default
template: persistentVolumeClaim.yaml
asserts:
- hasDocuments:
count: 2 # config and media only
- it: should create cache PVC when enabled
template: persistentVolumeClaim.yaml
set:
persistence.cache.enabled: true
persistence.cache.type: pvc
asserts:
- hasDocuments:
count: 3 # config, media, and cache
- contains:
path: metadata.name
content: RELEASE-NAME-jellyfin-cache
- it: should not create cache PVC when type is hostPath
template: persistentVolumeClaim.yaml
set:
persistence.cache.enabled: true
persistence.cache.type: hostPath
asserts:
- hasDocuments:
count: 2 # config and media only
- it: should not create cache PVC when type is emptyDir
template: persistentVolumeClaim.yaml
set:
persistence.cache.enabled: true
persistence.cache.type: emptyDir
asserts:
- hasDocuments:
count: 2
- it: should set cache PVC size correctly
template: persistentVolumeClaim.yaml
documentIndex: 2
set:
persistence.cache.enabled: true
persistence.cache.type: pvc
persistence.cache.size: 20Gi
asserts:
- equal:
path: spec.resources.requests.storage
value: 20Gi
- it: should set cache PVC access mode
template: persistentVolumeClaim.yaml
documentIndex: 2
set:
persistence.cache.enabled: true
persistence.cache.type: pvc
persistence.cache.accessMode: ReadWriteMany
asserts:
- contains:
path: spec.accessModes
content: ReadWriteMany
- it: should set cache PVC storage class
template: persistentVolumeClaim.yaml
documentIndex: 2
set:
persistence.cache.enabled: true
persistence.cache.type: pvc
persistence.cache.storageClass: fast-ssd
asserts:
- equal:
path: spec.storageClassName
value: fast-ssd
- it: should add annotations to cache PVC
template: persistentVolumeClaim.yaml
documentIndex: 2
set:
persistence.cache.enabled: true
persistence.cache.type: pvc
persistence.cache.annotations:
my-annotation: my-value
asserts:
- equal:
path: metadata.annotations.my-annotation
value: my-value
- it: should use existing claim when specified
template: deployment.yaml
set:
persistence.cache.enabled: true
persistence.cache.type: pvc
persistence.cache.existingClaim: my-existing-cache-claim
asserts:
- contains:
path: spec.template.spec.volumes
content:
name: cache
persistentVolumeClaim:
claimName: my-existing-cache-claim
- it: should not create PVC when existing claim used
template: persistentVolumeClaim.yaml
set:
persistence.cache.enabled: true
persistence.cache.type: pvc
persistence.cache.existingClaim: my-existing-cache-claim
asserts:
- hasDocuments:
count: 2 # config and media only, not cache