Fixed syntax errors of tpl function

helm/kafka/Chart.lock

@@ -1,6 +1,9 @@
 dependencies:
+- name: prometheus-kafka-exporter
+  repository: https://prometheus-community.github.io/helm-charts
+  version: 2.7.0
 - name: template
   repository: file://../template
-  version: 0.1.14
-digest: sha256:b5659a36090dbcc6f457bed11e62c17ea1d6c4eeb8d02c556c8c3c80e55d2a89
-generated: "2023-10-29T20:57:18.426822+01:00"
+  version: 0.1.20
+digest: sha256:2c2a71a4a41b338b87fab0a2e26454bc68f4fde9983c4635236a006a088b6f89
+generated: "2023-11-02T12:02:09.048349+01:00"

helm/kafka/Chart.yaml

@@ -7,13 +7,16 @@ maintainers:
   - name: Jim Martens
     url: https://2martens.de
 dependencies:
+  - name: prometheus-kafka-exporter
+    version: 2.7.0
+    repository: https://prometheus-community.github.io/helm-charts
   - name: template
-    version: 0.1.14
+    version: 0.1.20
     repository: file://../template
 annotations:
   artifacthub.io/changes: |
-    - kind: fixed
-      description: Fixed version and values
+    - kind: added
+      description: Added Prometheus support
   artifacthub.io/signKey: |
     fingerprint: F0F153B65BAD467201D7544E47393ABD1F96B7C8
     url: https://mafiasi.de/pks/key/47393ABD1F96B7C8.asc

helm/kafka/overwrite_values.yaml

@@ -28,3 +28,5 @@ environment:
     value: PLAINTEXT
   - name: KAFKA_OFFSETS_TOPIC_REPLICATION_FACTOR
     value: "1"
+prometheus:
+  enabled: false

helm/kafka/values.yaml

@@ -2,6 +2,8 @@
 # the default for your application differs. The image.repository is a prime candidate for that.
 
 replicaCount: 1
+# revisionHistoryLimit: can be configured to reduce/increase amount of stored replica sets for rollback
+revisionHistoryLimit: 10
 image:
   repository: confluentinc/cp-kafka
   pullPolicy: IfNotPresent
@@ -48,6 +50,13 @@ application:
   zookeeper:
     host: zookeeper
     port: 2181
+prometheus:
+  enabled: false
+  # only enable if you have the Prometheus operator installed, otherwise it will fail due to missing CRDs
+  useCRDs: false
+  # namespace: the namespace of the Prometheus installation
+  # the value is templated
+  namespace:
 # Overwrite with application specific environment variables
 # Each item has key and value, where the value is parsed as a template
 environment: