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Introduce named volumes in Helm chart (#6972)

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This commit is contained in:
Andrei Kvapil
2025-07-14 20:00:02 +02:00
committed by GitHub
parent a51d993aa9
commit 660941138b
12 changed files with 325 additions and 265 deletions
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100
k8s/charts/seaweedfs/templates/volume-resize-hook.yaml
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@@ -1,40 +1,54 @@
{{- if and .Values.volume.enabled .Values.volume.resizeHook.enabled }}
{{- $seaweedfsName := include "seaweedfs.name" $ }}
{{- $replicas := int .Values.volume.replicas -}}
{{- $statefulsetName := printf "%s-volume" $seaweedfsName -}}
{{- $statefulset := (lookup "apps/v1" "StatefulSet" .Release.Namespace $statefulsetName) -}}
{{- $volumes := deepCopy .Values.volumes | mergeOverwrite (dict "" .Values.volume) }}
{{/* Check for changes in volumeClaimTemplates */}}
{{- $templateChangesRequired := false -}}
{{- if $statefulset -}}
{{- range $dir := .Values.volume.dataDirs -}}
{{- if eq .type "persistentVolumeClaim" -}}
{{- $desiredSize := .size -}}
{{- range $statefulset.spec.volumeClaimTemplates -}}
{{- if and (eq .metadata.name $dir.name) (ne .spec.resources.requests.storage $desiredSize) -}}
{{- $templateChangesRequired = true -}}
{{- end -}}
{{- end -}}
{{- end -}}
{{- end -}}
{{- end -}}
{{/* Check for the need for patching existing PVCs */}}
{{- $pvcChangesRequired := false -}}
{{- range $dir := .Values.volume.dataDirs -}}
{{- if eq .type "persistentVolumeClaim" -}}
{{- $desiredSize := .size -}}
{{- range $i, $e := until $replicas }}
{{- $pvcName := printf "%s-%s-volume-%d" $dir.name $seaweedfsName $e -}}
{{- $currentPVC := (lookup "v1" "PersistentVolumeClaim" $.Release.Namespace $pvcName) -}}
{{- if and $currentPVC (ne ($currentPVC.spec.resources.requests.storage | toString) $desiredSize) -}}
{{- $pvcChangesRequired = true -}}
{{- end -}}
{{- end -}}
{{- end -}}
{{- end -}}
{{- if .Values.volume.resizeHook.enabled }}
{{- $commands := list }}
{{- range $vname, $volume := $volumes }}
{{- $volumeName := trimSuffix "-" (printf "volume-%s" $vname) }}
{{- $volume := mergeOverwrite (deepCopy $.Values.volume) (dict "enabled" true) $volume }}
{{- if or $templateChangesRequired $pvcChangesRequired }}
{{- if $volume.enabled }}
{{- $replicas := int $volume.replicas -}}
{{- $statefulsetName := printf "%s-%s" $seaweedfsName $volumeName -}}
{{- $statefulset := (lookup "apps/v1" "StatefulSet" $.Release.Namespace $statefulsetName) -}}
{{/* Check for changes in volumeClaimTemplates */}}
{{- if $statefulset }}
{{- range $dir := $volume.dataDirs }}
{{- if eq .type "persistentVolumeClaim" }}
{{- $desiredSize := .size }}
{{- range $statefulset.spec.volumeClaimTemplates }}
{{- if and (eq .metadata.name $dir.name) (ne .spec.resources.requests.storage $desiredSize) }}
{{- $commands = append $commands (printf "kubectl delete statefulset %s --cascade=orphan" $statefulsetName) }}
{{- end }}
{{- end }}
{{- end }}
{{- end }}
{{- end }}
{{/* Check for the need for patching existing PVCs */}}
{{- range $dir := $volume.dataDirs }}
{{- if eq .type "persistentVolumeClaim" }}
{{- $desiredSize := .size }}
{{- range $i, $e := until $replicas }}
{{- $pvcName := printf "%s-%s-%s-%d" $dir.name $seaweedfsName $volumeName $e }}
{{- $currentPVC := (lookup "v1" "PersistentVolumeClaim" $.Release.Namespace $pvcName) }}
{{- if and $currentPVC }}
{{- $oldSize := include "common.resource-quantity" $currentPVC.spec.resources.requests.storage }}
{{- $newSize := include "common.resource-quantity" $desiredSize }}
{{- if gt $newSize $oldSize }}
{{- $commands = append $commands (printf "kubectl patch pvc %s-%s-%s-%d -p '{\"spec\":{\"resources\":{\"requests\":{\"storage\":\"%s\"}}}}'" $dir.name $seaweedfsName $volumeName $e $desiredSize) }}
{{- end }}
{{- end }}
{{- end }}
{{- end }}
{{- end }}
{{- end }}
{{- end }}
{{- if $commands }}
apiVersion: batch/v1
kind: Job
metadata:
@@ -45,6 +59,9 @@ metadata:
helm.sh/hook-delete-policy: hook-succeeded,before-hook-creation
spec:
template:
metadata:
labels:
policy.cozystack.io/allow-to-apiserver: "true"
spec:
serviceAccountName: {{ $seaweedfsName }}-volume-resize-hook
restartPolicy: Never
@@ -55,21 +72,9 @@ spec:
command: ["sh", "-xec"]
args:
- |
{{- if $pvcChangesRequired -}}
{{- range $dir := .Values.volume.dataDirs -}}
{{- if eq .type "persistentVolumeClaim" -}}
{{- $desiredSize := .size -}}
{{- range $i, $e := until $replicas }}
kubectl patch pvc {{ printf "%s-%s-volume-%d" $dir.name $seaweedfsName $e }} -p '{"spec":{"resources":{"requests":{"storage":"{{ $desiredSize }}"}}}}'
{{- range $commands }}
{{ . }}
{{- end }}
{{- end }}
{{- end }}
{{- end -}}
{{- if $templateChangesRequired }}
kubectl delete statefulset {{ $statefulsetName }} --cascade=orphan
{{- end }}
{{- end }}
---
apiVersion: v1
kind: ServiceAccount
@@ -111,4 +116,5 @@ roleRef:
kind: Role
name: {{ $seaweedfsName }}-volume-resize-hook
apiGroup: rbac.authorization.k8s.io
{{- end }}
{{- end }}