change: use us-east-1 for PR test runs (#1014)

Author: laurenyu

buildspec.yml

@@ -16,7 +16,7 @@ phases:
       - start_time=`date +%s`
       - |
         if has-matching-changes "tests/" "src/*.py" "setup.py" "setup.cfg" "buildspec.yml"; then
-          tox -e py36 -- tests/integ -m "not local_mode" -n 48  --reruns 3 --reruns-delay 5 --durations 50
+          tox -e py36 -- tests/integ -m "not local_mode" -n 48  --reruns 3 --reruns-delay 5 --durations 50 --boto-config '{"region_name": "us-east-1"}'
         fi
       - ./ci-scripts/displaytime.sh 'py36 tests/integ' $start_time
 
@@ -27,6 +27,5 @@ phases:
           FILENAME=$(ls ci-lock/ || true)
           ACCOUNT=$(aws sts get-caller-identity --output text | awk '{print $1}')
           S3_BUCKET_DIR=s3://sagemaker-us-west-2-${ACCOUNT}/ci-lock/
-          aws s3 rm ${S3_BUCKET_DIR}${FILENAME}      
+          aws s3 rm ${S3_BUCKET_DIR}${FILENAME}
         fi
-

tests/integ/vpc_test_utils.py

@@ -171,9 +171,7 @@ def _create_vpc_resources(ec2_client, name):
 
 
 def _create_vpc_with_name(ec2_client, region, name):
-    vpc_id, [subnet_id_a, subnet_id_b], security_group_id = _create_vpc_resources(
-        ec2_client, region, name
-    )
+    vpc_id, [subnet_id_a, subnet_id_b], security_group_id = _create_vpc_resources(ec2_client, name)
     return [subnet_id_a, subnet_id_b], security_group_id