fix: update wait-for-postgresql init container to use bitnamilegacy

- Fix hardcoded postgresql:15.3.0-debian-11-r0 image in deployment.yaml init container
- Use postgres.backup.image configuration instead for consistency
- Bump mlflow chart version 0.4.1 -> 0.4.2

This fixes remaining ImagePullBackOff errors in helm-install-test.

Author: chris-sanders

applications/mlflow/charts/mlflow/Chart.yaml

@@ -2,7 +2,7 @@ apiVersion: v2
 name: mlflow
 description: A Helm chart for MLflow - Open source platform for the machine learning lifecycle.
 type: application
-version: "0.4.1"
+version: "0.4.2"
 appVersion: "2.10.0"
 home: https://github.com/mlflow/mlflow/tree/master/charts/mlflow
 sources:

applications/mlflow/charts/mlflow/templates/deployment.yaml

@@ -96,8 +96,8 @@ spec:
       {{- if .Values.mlflow.trackingServer.basicAuth.enabled }}
       {{- if not .Values.mlflow.trackingServer.basicAuth.existingSecret }}
       - name: wait-for-postgresql
-        image: docker.io/bitnami/postgresql:15.3.0-debian-11-r0
-        imagePullPolicy: {{ .Values.mlflow.image.pullPolicy }}
+        image: "{{ .Values.postgres.backup.image.registry }}/{{ .Values.postgres.backup.image.repository }}:{{ .Values.postgres.backup.image.tag }}"
+        imagePullPolicy: {{ .Values.postgres.backup.image.pullPolicy }}
         command: ["sh", "-c", "until PGPASSWORD=$POSTGRES_PASSWORD psql -U $POSTGRES_USER -h $POSTGRES_HOST -p 5432 -d $POSTGRES_DB -c 'SELECT 1'; do sleep 1; done;"]
         envFrom:
         - secretRef:

applications/mlflow/release/mlflow-chart.yaml

@@ -5,7 +5,7 @@ metadata:
 spec:
   chart:
     name: mlflow
-    chartVersion: 0.4.1
+    chartVersion: 0.4.2
   weight: 10
   helmUpgradeFlags:
     - --wait