Summary
Following up on #117 — the maintainer confirmed the chart rename (agent-broker → openab) is an intentional breaking change and welcomed a PR for persistence.existingClaim support.
This feature request tracks adding that support so users can seamlessly preserve PVC data across chart renames or reuse existing volumes.
Proposed Changes
1. values.yaml — add existingClaim field
persistence:
enabled: true
existingClaim: "" # set to reuse an existing PVC (skips PVC creation)
storageClass: ""
size: 1Gi
2. templates/pvc.yaml — skip creation when existingClaim is set
{{- if and .Values.persistence.enabled (not .Values.persistence.existingClaim) }}
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
name: {{ include "openab.fullname" . }}
labels:
{{- include "openab.labels" . | nindent 4 }}
spec:
accessModes:
- ReadWriteOnce
{{- if .Values.persistence.storageClass }}
storageClassName: {{ .Values.persistence.storageClass }}
{{- end }}
resources:
requests:
storage: {{ .Values.persistence.size }}
{{- end }}3. templates/deployment.yaml — use existingClaim in volume
{{- if .Values.persistence.enabled }}
- name: data
persistentVolumeClaim:
claimName: {{ .Values.persistence.existingClaim | default (include "openab.fullname" .) }}
{{- end }}Use Cases
- Upgrading from
agent-broker chart to openab chart while preserving CLI auth and session data
- Reusing a pre-provisioned PVC in environments with specific storage policies
- Migrating between release names without data loss
This is a standard Helm chart pattern (used by Bitnami, Grafana, etc.) and would be a small, non-breaking addition.
Happy to submit a PR if this is accepted.
Summary
Following up on #117 — the maintainer confirmed the chart rename (
agent-broker→openab) is an intentional breaking change and welcomed a PR forpersistence.existingClaimsupport.This feature request tracks adding that support so users can seamlessly preserve PVC data across chart renames or reuse existing volumes.
Proposed Changes
1.
values.yaml— addexistingClaimfield2.
templates/pvc.yaml— skip creation when existingClaim is set3.
templates/deployment.yaml— use existingClaim in volumeUse Cases
agent-brokerchart toopenabchart while preserving CLI auth and session dataThis is a standard Helm chart pattern (used by Bitnami, Grafana, etc.) and would be a small, non-breaking addition.
Happy to submit a PR if this is accepted.