[prometheus-postgres-exporter] Add optional unhealthyPodEvictionPolicy (#6432)

Signed-off-by: Pat Riehecky <riehecky@fnal.gov>

Author: jcpunk

charts/prometheus-postgres-exporter/Chart.yaml

@@ -3,7 +3,7 @@ apiVersion: v2
 appVersion: v0.18.1
 description: A Helm chart for prometheus postgres-exporter
 name: prometheus-postgres-exporter
-version: 7.3.0
+version: 7.4.0
 home: https://github.com/prometheus-community/postgres_exporter
 sources:
   - https://github.com/prometheus-community/postgres_exporter

charts/prometheus-postgres-exporter/templates/pdb.yaml

@@ -8,6 +8,9 @@ metadata:
     {{- include "prometheus-postgres-exporter.labels" . | nindent 4 }}
 spec:
   maxUnavailable: {{ .Values.podDisruptionBudget.maxUnavailable }}
+  {{- if hasKey .Values.podDisruptionBudget "unhealthyPodEvictionPolicy" }}
+  unhealthyPodEvictionPolicy: {{ .Values.podDisruptionBudget.unhealthyPodEvictionPolicy }}
+  {{- end }}
   selector:
     matchLabels:
       {{- include "prometheus-postgres-exporter.selectorLabels" . | nindent 6 }}