diff --git a/.drone.yml b/.drone.yml
index dfc531b..98ca28b 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -55,6 +55,10 @@ steps:
       - cd /mnt/md0/infra/monitoring
       - git pull
       - make restart
+  - name: cleanup
+    commands:
+      - cd /mnt/md0/infra/homeassistant
+      - make cleanup
 
 trigger:
   branch:
diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..b195b12
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,19 @@
+MIT License Copyright (c) 2021 fedy95
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is furnished
+to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice (including the next
+paragraph) shall be included in all copies or substantial portions of the
+Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS
+OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
+OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/Makefile b/Makefile
index 125d0b1..5a917cd 100644
--- a/Makefile
+++ b/Makefile
@@ -32,7 +32,11 @@ lint-json:
 	$(LINT-JSON-CMD) -qc grafana/provisioning/dashboards/smart-4.json
 
 restart:
-	docker-compose -f docker-compose.yml down
-	docker-compose -f docker-compose.yml up -d
+	docker-compose -f docker-compose.yml pull
+	docker-compose -f docker-compose.yml restart
+
+cleanup:
+	docker system prune --all --force
+	docker system prune --volumes --force
 
 .DEFAULT_GOAL := lint
diff --git a/README.md b/README.md
index 538e36f..e90c5b0 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,6 @@
-### monitoring
-[![Build Status](https://drone.fedy95.com/api/badges/infra/monitoring/status.svg)](https://drone.fedy95.com/infra/monitoring)
+### monitoring [![Build Status](https://drone.fedy95.com/api/badges/infra/monitoring/status.svg)](https://drone.fedy95.com/infra/monitoring)
+
+---
 
 ### services
 - [Loki/Promtail](https://github.com/grafana/loki)