[#234] Connect adapters to Kafka's headless service.

Signed-off-by: Abel Buechner-Mihaljevic <[email protected]>

charts/hono/templates/_helpers.tpl

@@ -225,7 +225,7 @@ kafka:
   defaultClientIdPrefix: {{ .component }}
 {{- if .dot.Values.kafkaMessagingClusterExample.enabled }}
   commonClientConfig:
-    bootstrap.servers: "{{ .dot.Release.Name }}-kafka:9092"
+    bootstrap.servers: {{ .dot.Release.Name }}-{{ .dot.Values.kafka.nameOverride }}-0.{{ .dot.Release.Name }}-{{ .dot.Values.kafka.nameOverride }}-headless.{{ .dot.Release.Namespace }}:{{ .dot.Values.kafka.service.port }}
     security.protocol: SASL_PLAINTEXT
     sasl.mechanism: SCRAM-SHA-512
     sasl.jaas.config: "org.apache.kafka.common.security.scram.ScramLoginModule required username=\"{{ first .dot.Values.kafka.auth.sasl.jaas.clientUsers }}\" password=\"{{ first .dot.Values.kafka.auth.sasl.jaas.clientPasswords }}\";"

charts/hono/values.yaml

@@ -1773,6 +1773,10 @@ kafka:
     # Note that this could require creating RBAC rules, for more information refer to
     # https://github.com/bitnami/charts/tree/master/bitnami/kafka#accessing-kafka-brokers-from-outside-the-cluster
     create: true
+  # the name of the template (maintains the release name)
+  nameOverride: kafka
+  service:
+    port: 9092
   auth:
     clientProtocol: sasl
     sasl: