add exported compose files

docker/compose/watchtower.yml

@@ -0,0 +1,16 @@
+---
+
+version: "3.8"
+services:
+  watchtower:
+    image: containrrr/watchtower
+    container_name: watchtower
+    hostname: Agrajag-Cloud
+    restart: unless-stopped
+    environment:
+      - WATCHTOWER_NOTIFICATION_EMAIL_SUBJECTTAG=$SUBJECT
+      - WATCHTOWER_NOTIFICATION_URL=smtp://$USER:$PASSWORD@$EMAIL_SERVER:$PORT/?from=$EMAIL_FROM&to=$EMAIL_TO
+      - WATCHTOWER_NOTIFICATION_EMAIL_DELAY=2
+      - TZ=$TZ
+    volumes:
+      - /var/run/docker.sock:/var/run/docker.sock