fix: lakehouse demo (#391)

Author: sbernauer

demos/data-lakehouse-iceberg-trino-spark/create-spark-ingestion-job.yaml

@@ -253,7 +253,7 @@ data:
     spark.sql("CREATE TABLE IF NOT EXISTS lakehouse.smart_city.shared_bikes_station_status (station_id string, num_bikes_available short, is_installed boolean, is_renting boolean, is_returning boolean, last_reported timestamp) USING iceberg PARTITIONED BY (days(last_reported)) TBLPROPERTIES ('format-version' = 2, format = 'PARQUET')")
 
     kafkaOptions = {
-      "kafka.bootstrap.servers": "kafka-broker-default.default.svc.cluster.local:9093",
+      "kafka.bootstrap.servers": "kafka-broker-default-headless.default.svc.cluster.local:9093",
       "kafka.security.protocol": "SSL",
       "kafka.ssl.truststore.location": "/stackable/tls/truststore.p12",
       "kafka.ssl.truststore.password": "changeit",

stacks/_templates/minio-distributed-tls/README.md

@@ -11,6 +11,7 @@ The upstream minio chart is also too limited:
 Therefore, we will render the upstream chart here, and then apply the necessary
 customizations on top.
 
-```yaml
+```bash
+helm repo add minio https://charts.min.io/
 helm template minio minio/minio -f values.yaml > rendered-chart.yaml
 ```