Merge branch 'feat-maintain-5-instances' into 'main'

Feat maintain five instances running concurrently

Closes #53

See merge request rc/packer-openstack-hpc-image!37

.gitlab-ci.yml

@@ -12,6 +12,8 @@ variables:
   PKR_VAR_networks: '["ec11e2be-8fac-46cf-8fa2-9dffb74ba5df"]'
   GIT_AUTHOR_NAME: "Gitlab runner"
   GIT_AUTHOR_EMAIL: "gitlab@runner"
+  NUM_SERVER_TO_KEEP: 5
+  NUM_IMAGE_TO_KEEP: 30
 
 stages:
   - build
@@ -148,6 +150,15 @@ deploy_knightly:
         openstack server add floating ip $NEW_INSTANCE_ID $CAMPUS_IP
         openstack server add floating ip $NEW_INSTANCE_ID $CHEAHA_IP
       fi
+    - |
+      SERVER_TO_BE_DELETE=($(openstack server list --name ood-knightly --sort-column Image --sort-descending -f value -c ID | sed -n $(($NUM_SERVER_TO_KEEP+1))',$p'))
+      IMAGE_TO_BE_DELETE=($(openstack image list --sort-column Name --sort-descending -f value -c Name | grep -P '^ood-\d{8}$' | sed -n $(($NUM_IMAGE_TO_KEEP+1))',$p'))
+      for svr in $SERVER_TO_BE_DELETE; do
+        openstack server delete ${svr}
+      done
+      for img in $IMAGE_TO_BE_DELETE; do
+        openstack image delete ${img}
+      done
   only:
     - schedules