on_failure added to ci

.gitlab-ci.yml

 variables:
-  TEST_PACKAGE_NAME: clmctest-$CI_COMMIT_REF_NAME-$CI_COMMIT_SHA-.tar.gz
+  BUILD_REF: $CI_COMMIT_REF_NAME-$CI_COMMIT_SHA
+  TEST_PACKAGE_NAME: clmctest-$BUILD_REF-.tar.gz
 
 stages:  
   - build
   - test
+  - clean
 
 build:tests:
   stage: build
   script:
-    - echo "$CI_COMMIT_REF_NAME-$CI_COMMIT_SHA" > clmctest/git-commit-ref  
+    - echo "$BUILD_REF" > clmctest/git-commit-ref  
     - python setup.py sdist --dist-dir=build
   artifacts:
     paths:
@@ -22,14 +24,16 @@ test:
     - vagrant --fixture=scripts -- ssh test-runner -- -tt "pip3 install /vagrant/build/$TEST_PACKAGE_NAME"
     - vagrant --fixture=scripts -- ssh test-runner -- -tt "pytest -s --pyargs clmctest.scripts"
     - vagrant --fixture=monitoring -- up
-    - vagrant --fixture=scripts -- ssh test-runner -- -tt "pytest -s --pyargs clmctest.monitoring"  
+    - vagrant --fixture=monitoring -- ssh test-runner -- -tt "pytest -s --pyargs clmctest.monitoring"  
     - vagrant --fixture=inputs -- up
-    - vagrant --fixture=scripts -- ssh test-runner -- -tt "pytest -s --pyargs clmctest.inputs"      
-  after_script:
+    - vagrant --fixture=scripts -- ssh test-runner -- -tt "pytest -s --pyargs clmctest.inputs"         
+  when: on_success   
+
+clean:
+  stage: clean
+  script: 
+    - vagrant --fixture=scripts -- ssh test-runner -- -tt "pip3 uninstall -y clmctest"    
     - vagrant --fixture=inputs -- destroy --force     
     - vagrant --fixture=monitoring -- destroy --force     
     - vagrant --fixture=scripts -- destroy --force
-    - vagrant --fixture=scripts -- ssh test-runner -- -tt "pip3 uninstall -y clmctest"    
-  when: on_success   
-
- 
+  when: on_failure
\ No newline at end of file