added sample docker file for custom spark image

Author: sharad-hub

code/custom-docker-file/.Dockerfile

@@ -0,0 +1,17 @@
+# Use the official Spark image as the base image
+FROM bitnami/spark:3.5.3
+USER root
+# Install the required Python packages
+RUN pip install fastavro \
+    pyspark \
+    azure-eventhub==5.10.1 \
+    azure-storage-blob==12.14.1 \
+    azure-eventhub-checkpointstoreblob-aio \
+    azure-mgmt-resource \
+    azure-mgmt-datalake-store \
+    azure-datalake-store \
+    avro \
+    avro-python3
+USER 1001
+# Set the entrypoint to the Spark entrypoint
+ENTRYPOINT ["/opt/bitnami/scripts/spark/entrypoint.sh"]

docs/index.md

@@ -1,4 +1,4 @@
-### **Deploying Apache Spark on Azure Kubernetes Service (AKS)**
+### **Running Apache Spark on Azure Kubernetes Service (AKS)**
 
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