[LFXV2-1166] Add pod disruption budget support

charts/lfx-v2-indexer-service/templates/pdb.yaml

@@ -0,0 +1,23 @@
+# Copyright The Linux Foundation and each contributor to LFX.
+# SPDX-License-Identifier: MIT
+{{- if .Values.podDisruptionBudget.enabled }}
+{{- if and (hasKey .Values.podDisruptionBudget "minAvailable") (hasKey .Values.podDisruptionBudget "maxUnavailable") }}
+  {{- fail "podDisruptionBudget: cannot set both minAvailable and maxUnavailable" }}
+{{- end }}
+---
+apiVersion: policy/v1
+kind: PodDisruptionBudget
+metadata:
+  name: lfx-v2-indexer-service
+  namespace: lfx
+spec:
+  selector:
+    matchLabels:
+      app: lfx-v2-indexer-service
+  {{- if hasKey .Values.podDisruptionBudget "minAvailable" }}
+  minAvailable: {{ .Values.podDisruptionBudget.minAvailable }}
+  {{- end }}
+  {{- if hasKey .Values.podDisruptionBudget "maxUnavailable" }}
+  maxUnavailable: {{ .Values.podDisruptionBudget.maxUnavailable }}
+  {{- end }}
+{{- end }}

charts/lfx-v2-indexer-service/values.yaml

@@ -104,6 +104,13 @@ app:
     # (default: "tracecontext,baggage")
     propagators: "tracecontext,baggage,jaeger"
 
+# podDisruptionBudget configures a PodDisruptionBudget for the deployment.
+# Only one of minAvailable or maxUnavailable may be set (not both).
+podDisruptionBudget:
+  enabled: false
+  # minAvailable: 1
+  # maxUnavailable: 1
+
 # image is the configuration for the container image
 image:
   # repository is the container image repository