EZAF-6347: Avoid using custom spark-env.sh and sprk-defaults.conf in PKD (apache#1218)

Author: ekrivokonmapr

resource-managers/kubernetes/docker/src/main/dockerfiles/spark/entrypoint.sh

@@ -19,6 +19,23 @@
 # echo commands to the terminal output
 set -ex
 
+if [ -f "/tmp/usersecret/CLUSTER_NAME" ]; then
+  echo "DF env detected. Starting DF configuration"
+  # common configuration
+  source "$MAPR_HOME"/kubernetes/common.sh
+
+  READY_FLAG=$MAPR_KUBERNETES/ready
+  CURRENT_FILE="entrypoint.sh"
+  COMPONENT_NAME="SPARK DRIVER/EXECUTOR"
+  cleanup_ready
+  prologue $COMPONENT_NAME
+  wait
+  client_init spark
+  echo "DF configuration complete"
+else
+  echo "Not in DF env. Skipping DF configuration"
+fi
+
 # Check whether there is a passwd entry for the container UID
 myuid=$(id -u)
 mygid=$(id -g)
@@ -115,4 +132,4 @@ case "$1" in
 esac
 
 # Execute the container CMD under tini for better hygiene
-exec /usr/bin/tini -s -- "${CMD[@]}"
+exec /tini -s -- "${CMD[@]}"