[bitnami/kafka] Unify and document production values

Signed-off-by: Carlos Rodriguez Hernandez <crhernandez@bitnami.com>

bitnami/kafka/Chart.yaml

@@ -1,6 +1,6 @@
 apiVersion: v1
 name: kafka
-version: 3.0.4
+version: 3.0.5
 appVersion: 2.2.1
 description: Apache Kafka is a distributed streaming platform.
 keywords:

bitnami/kafka/README.md

@@ -178,6 +178,69 @@ $ helm install --name my-release -f values.yaml bitnami/kafka
 
 > **Tip**: You can use the default [values.yaml](values.yaml)
 
+### Production configuration
+
+This chart includes a `values-production.yaml` file where you can find some parameters oriented to production configuration in comparison to the regular `values.yaml`:
+
+- Number of Kafka nodes:
+```diff
+- replicaCount: 1
++ replicaCount: 3
+```
+
+- Allow to use the PLAINTEXT listener:
+```diff
+- allowPlaintextListener: true
++ allowPlaintextListener: false
+```
+
+- Default replication factors for automatically created topics:
+```diff
+- defaultReplicationFactor: 1
++ defaultReplicationFactor: 3
+```
+
+- The replication factor for the offsets topic:
+```diff
+- offsetsTopicReplicationFactor: 1
++ offsetsTopicReplicationFactor: 3
+```
+
+- The replication factor for the transaction topic:
+```diff
+- transactionStateLogReplicationFactor: 1
++ transactionStateLogReplicationFactor: 3
+```
+
+- Overridden min.insync.replicas config for the transaction topic:
+```diff
+- transactionStateLogMinIsr: 1
++ transactionStateLogMinIsr: 3
+```
+
+- Switch to enable the kafka authentication:
+```diff
+- auth.enabled: false
++ auth.enabled: true
+```
+
+- Whether or not to create a separate Kafka exporter:
+```diff
+- metrics.kafka.enabled: false
++ metrics.kafka.enabled: true
+```
+
+- Whether or not to expose JMX metrics to Prometheus:
+```diff
+- metrics.jmx.enabled: false
++ metrics.jmx.enabled: true
+```
+
+- Zookeeper chart metrics configuration:
+```diff
++ zookeeper.metrics.enabled: true
+```
+
 ### [Rolling VS Immutable tags](https://docs.bitnami.com/containers/how-to/understand-rolling-tags-containers/)
 
 It is strongly recommended to use immutable tags in a production environment. This ensures your deployment does not change automatically if the same tag is updated with a different image.

bitnami/kafka/values-production.yaml

@@ -54,7 +54,6 @@ updateStrategy: RollingUpdate
 podDisruptionBudget:
   maxUnavailable: 1
 
-
 replicaCount: 3
 
 config: |-

bitnami/kafka/values.yaml

@@ -54,7 +54,6 @@ updateStrategy: RollingUpdate
 podDisruptionBudget:
   maxUnavailable: 1
 
-
 replicaCount: 1
 
 config: |-