using 'docker' instead of 'localhost'

.gitlab-ci.yml

@@ -79,7 +79,7 @@ test:
   #   DOCKER_TLS_CERTDIR: ""
   # stage: test
   services:
-    - docker:19.03.0-dind
+    - docker:dind
   before_script:
     - docker login -u "$CI_REGISTRY_USER" -p "$CI_REGISTRY_PASSWORD" $CI_REGISTRY
     - chmod +x env_setup.sh wait_for_container.sh

registrar_test.py

@@ -18,7 +18,7 @@ def connect_to_db(eo_id):
     global db_name, coverage_id
     connection= None
     try:
-        connection = psycopg2.connect(dbname=database, user=database_user, password=database_password, host='127.0.0.1', port=port)
+        connection = psycopg2.connect(dbname=database, user=database_user, password=database_password, host='docker', port=port)
         cursor = connection.cursor()
         db_name = connection.get_dsn_parameters()["dbname"]
         postgreSQL_select_Query = "SELECT identifier FROM coverages_eoobject WHERE identifier = '%s';" % eo_id