fix: spark-submission failed due to lack of permission by user spark (

#2223)

error: Exception in thread "main" java.io.FileNotFoundException: /home/spark/.ivy2/cache/resolved-org.apache.spark-spark-submit-parent-511288aa-ce7c-4a38-9c8e-4869b71c68fa-1.0.xml (No such file or directory)

Signed-off-by: xuqingtan <missedone@gmail.com>

Dockerfile

@@ -46,9 +46,9 @@ RUN apt-get update \
     && apt-get install -y tini \
     && rm -rf /var/lib/apt/lists/*
 
-RUN mkdir -p /etc/k8s-webhook-server/serving-certs && \
+RUN mkdir -p /etc/k8s-webhook-server/serving-certs /home/spark && \
     chmod -R g+rw /etc/k8s-webhook-server/serving-certs && \
-    chown -R spark /etc/k8s-webhook-server/serving-certs
+    chown -R spark /etc/k8s-webhook-server/serving-certs /home/spark
 
 USER spark