run templating

docs/modules/druid/examples/getting_started/druid.yaml

@@ -7,17 +7,18 @@ spec:
   image:
     productVersion: 30.0.0
   clusterConfig:
+    listenerClass: external-stable # This exposes your Stacklet outside of Kubernetes. Remove this configuration if this is not desired
+    zookeeperConfigMapName: simple-druid-znode
     deepStorage:
       hdfs:
         configMapName: simple-hdfs
-        directory: /data
+        directory: /druid
     metadataStorageDatabase:
-      dbType: derby
-      connString: jdbc:derby://localhost:1527/var/druid/metadata.db;create=true
-      host: localhost
-      port: 1527
-    tls: null
-    zookeeperConfigMapName: simple-druid-znode
+      dbType: postgresql
+      connString: jdbc:postgresql://postgresql-druid/druid
+      host: postgresql-druid
+      port: 5432
+      credentialsSecret: druid-db-credentials
   brokers:
     roleGroups:
       default:
@@ -38,3 +39,11 @@ spec:
     roleGroups:
       default:
         replicas: 1
+---
+apiVersion: v1
+kind: Secret
+metadata:
+  name: druid-db-credentials
+stringData:
+  username: druid
+  password: druid

docs/modules/druid/examples/getting_started/getting_started.sh

@@ -100,6 +100,17 @@ kubectl rollout status --watch statefulset/simple-hdfs-journalnode-default --tim
 kubectl rollout status --watch statefulset/simple-hdfs-namenode-default --timeout=300s
 # end::watch-hdfs-rollout[]
 
+echo "Installing PostgreSQL for Druid"
+# tag::helm-install-postgres[]
+helm install postgresql-druid \
+--repo https://charts.bitnami.com/bitnami postgresql \
+--version 16.1.2 \
+--set auth.database=druid \
+--set auth.username=druid \
+--set auth.password=druid \
+--wait
+# end::helm-install-postgres[]
+
 echo "Install DruidCluster from druid.yaml"
 # tag::install-druid[]
 kubectl apply --server-side -f druid.yaml

docs/modules/druid/examples/getting_started/hdfs.yaml

@@ -10,10 +10,14 @@ spec:
     dfsReplication: 1
     zookeeperConfigMapName: simple-hdfs-znode
   nameNodes:
+    config:
+      listenerClass: external-stable # This exposes your Stacklet outside of Kubernetes. Remove this configuration if this is not desired
     roleGroups:
       default:
         replicas: 2
   dataNodes:
+    config:
+      listenerClass: external-unstable # This exposes your Stacklet outside of Kubernetes. Remove this configuration if this is not desired
     roleGroups:
       default:
         replicas: 1