[SPARK-22960][K8S] Revert use of ARG base_image in images

resource-managers/kubernetes/docker/src/main/dockerfiles/driver/Dockerfile

@@ -15,8 +15,7 @@
 # limitations under the License.
 #
 
-ARG base_image
-FROM ${base_image}
+FROM spark-base
 
 # Before building the docker image, first build and make a Spark distribution following
 # the instructions in http://spark.apache.org/docs/latest/building-spark.html.

resource-managers/kubernetes/docker/src/main/dockerfiles/executor/Dockerfile

@@ -15,8 +15,7 @@
 # limitations under the License.
 #
 
-ARG base_image
-FROM ${base_image}
+FROM spark-base
 
 # Before building the docker image, first build and make a Spark distribution following
 # the instructions in http://spark.apache.org/docs/latest/building-spark.html.

resource-managers/kubernetes/docker/src/main/dockerfiles/init-container/Dockerfile

@@ -15,8 +15,7 @@
 # limitations under the License.
 #
 
-ARG base_image
-FROM ${base_image}
+FROM spark-base
 
 # If this docker file is being used in the context of building your images from a Spark distribution, the docker build
 # command should be invoked from the top level directory of the Spark distribution. E.g.:

sbin/build-push-docker-images.sh

@@ -60,13 +60,13 @@ function image_ref {
 }
 
 function build {
-  local base_image="$(image_ref spark-base 0)"
-  docker build --build-arg "spark_jars=$SPARK_JARS" \
+  docker build \
+    --build-arg "spark_jars=$SPARK_JARS" \
     --build-arg "img_path=$IMG_PATH" \
-    -t "$base_image" \
+    -t spark-base \
     -f "$IMG_PATH/spark-base/Dockerfile" .
   for image in "${!path[@]}"; do
-    docker build --build-arg "base_image=$base_image" -t "$(image_ref $image)" -f ${path[$image]} .
+    docker build -t "$(image_ref $image)" -f ${path[$image]} .
   done
 }