-# 1. All YAML files under directory `node_modules/`, introduced during the Travis run
-# 2. Any SLS files under directory `test/`, which are actually state files
-# 3. Any YAML files under directory `.kitchen/`, introduced during local testing
+# 1. All YAML files under directory `.cache/`, introduced during the GitLab CI run
+# 2. All YAML files under directory `.git/`
+# 3. All YAML files under directory `node_modules/`, introduced during the Travis run
+# 4. Any SLS files under directory `test/`, which are actually state files
+# 5. Any YAML files under directory `.kitchen/`, introduced during local testing
+# 6. `kitchen.vagrant.yml`, which contains Embedded Ruby (ERB) template syntax