Update tf related resource files

example/integrations/tensorflow/Dockerfile

@@ -1,6 +1,9 @@
-#NOTE: the build process would change during developing.
+# NOTE: the build process would change during developing,
+# the commit ID when first creating the image: 62c833f806db621943a6cf8195657b9d0fa67d93 (master)
+# original image is: gcr.io/kubeflow/tf-benchmarks-cpu:v20171202-bdab599-dirty-284af3,
+# the image needs an update to use the latest tf-benchmark logic.
 FROM python:2.7
-MAINTAINER volcano <maintainer@volcano.sh>
+MAINTAINER volcano <volcano-sh@googlegroups.com>
 RUN  apt-get update --fix-missing \
 && apt-get install -y git \
 && apt-get clean \

example/integrations/tensorflow/tf-example.yaml

@@ -27,14 +27,15 @@
 #    2019-04-23 11:10:25.552861: I tensorflow/core/distributed_runtime/rpc/grpc_channel.cc:215]
 #    Initialize GrpcChannelCache for job worker -> {0 -> tensorflow-benchmark-worker-0.tensorflow-benchmark:2222}
 #
-# **NOTES**: This example may take about an hour to finish.
+# **NOTES**: This example may take about an hour to finish. When running multiple jobs, please ensure enough resource
+# is guaranteed for each of the worker pods.
 
 apiVersion: batch.volcano.sh/v1alpha1
 kind: Job
 metadata:
   name: tensorflow-benchmark
 spec:
-  minAvailable: 2
+  minAvailable: 3
   schedulerName: kube-batch
   plugins:
     env: []
@@ -65,7 +66,7 @@ spec:
               resources: {}
               workingDir: /opt/tf-benchmarks/scripts/tf_cnn_benchmarks
           restartPolicy: OnFailure
-    - replicas: 1
+    - replicas: 2
       name: worker
       policies:
         - event: TaskCompleted