branch between on-demand and spot.

aws-experiment-launch/create_and_deploy.py

@@ -48,7 +48,7 @@ def get_instance_ids(response):
     return instance_ids
 
 
-def run_one_region_instances(config, region_number, number_of_instances):
+def run_one_region_instances(config, region_number, number_of_instances, isOnDemand=True):
     #todo: explore the use ec2 resource and not client. e.g. create_instances --  Might make for better code.
     """
     e.g. ec2.create_instances
@@ -56,20 +56,12 @@ def run_one_region_instances(config, region_number, number_of_instances):
     region_name = config[region_number][REGION_NAME]
     session = boto3.Session(region_name=region_name)
     ec2_client = session.client('ec2')
-    # response, placement = create_instances(
+    if isOnDemand:
-    #     config, ec2_client, region_number, int(number_of_instances))
-    response, placement = request_spots(
-        config, ec2_client, region_number, int(number_of_instances))
-    print(placement)
-    return session, placement
-
-
-def run_one_region_spots(config, region_number, number_of_instances):
-    region_name = config[region_number][REGION_NAME]
-    session = boto3.Session(region_name=region_name)
-    ec2_client = session.client('ec2')
         response, placement = create_instances(
             config, ec2_client, region_number, int(number_of_instances))
+    else:
+        response, placement = request_spots(
+            config, ec2_client, region_number, int(number_of_instances))
     print(placement)
     return session, placement