Fail on errors

.circleci/config.yml

@@ -9,7 +9,7 @@ jobs:
       - run:
           name: Check SSL Certificates
           command: |
-            DATE=`date "+%Y%m%d-%H%M"`
+            set -e
             sudo pip install -r requirements.txt
             OUTPUT=$(./ssl_checker.py -f ./hosts_to_check)
             echo "$OUTPUT"