(answer) branch dev updated: charts: support using an existing PVC via persistence.existingClaim

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LinkinStars pushed a commit to branch dev
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The following commit(s) were added to refs/heads/dev by this push:
     new f4db9ec5 charts: support using an existing PVC via persistence.existingClaim
f4db9ec5 is described below

commit f4db9ec5275b3b2b3d925e35c7c6ce4966722483
Author: Steven Koo <st...@emerson.com>
AuthorDate: Tue Sep 1 16:07:16 2026 -0500

    charts: support using an existing PVC via persistence.existingClaim
    
    Add a new `persistence.existingClaim` value that, when set, causes the
    deployment to mount the specified PVC instead of the chart-managed one
    and skips creation of the PVC resource entirely.
    
    Signed-off-by: Steven Koo <st...@emerson.com>
---
 charts/templates/deployment.yaml | 2 +-
 charts/templates/pvc.yaml        | 2 +-
 charts/values.yaml               | 2 ++
 3 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/charts/templates/deployment.yaml b/charts/templates/deployment.yaml
index f1b9d186..57d57ac2 100644
--- a/charts/templates/deployment.yaml
+++ b/charts/templates/deployment.yaml
@@ -101,7 +101,7 @@ spec:
         - name: data
           {{- if .Values.persistence.enabled }}
           persistentVolumeClaim:
-            claimName: {{ include "answer.fullname" . }}-claim
+            claimName: {{ .Values.persistence.existingClaim | default (printf "%s-claim" (include "answer.fullname" .)) }}
           {{- else }}
           emptyDir: {}
           {{- end -}}
diff --git a/charts/templates/pvc.yaml b/charts/templates/pvc.yaml
index 640fb9fe..e01ff820 100644
--- a/charts/templates/pvc.yaml
+++ b/charts/templates/pvc.yaml
@@ -15,7 +15,7 @@
 # specific language governing permissions and limitations
 # under the License.
 
-{{ if .Values.persistence.enabled -}}
+{{ if and .Values.persistence.enabled (not .Values.persistence.existingClaim) -}}
 kind: PersistentVolumeClaim
 apiVersion: v1
 metadata:
diff --git a/charts/values.yaml b/charts/values.yaml
index d932db84..7a5c16f3 100644
--- a/charts/values.yaml
+++ b/charts/values.yaml
@@ -91,6 +91,8 @@ persistence:
   accessMode: ReadWriteOnce
   size: 5Gi
   annotations: {}
+  # Use an existing PVC instead of creating one; when set, no PVC is created by this chart
+  existingClaim: ""
   # To restore a PVC from a VolumeSnapshot, set the dataSource;
   # the kind and apiGroup are optional and default to the shown values
   dataSource: {}