fix drone config 12

.drone.yml

@@ -90,4 +90,48 @@ steps:
         - synchronized
 
 
+---
 
+kind: pipeline
+type: docker
+name: main-pull-request-staging
+
+platform:
+  os: linux
+  arch: amd64
+
+trigger:
+  branch:
+    include:
+      - main
+
+clone:
+  disable: true
+
+steps:
+- name: deploy
+  image: appleboy/drone-ssh
+  settings:
+    host:
+      from_secret: host
+    username: root
+    key:
+      from_secret: ssh_key
+    port: 22
+    script_stop: true
+    script:
+      - cd /var/www/todo
+      - git fetch
+      - git checkout ${DRONE_BRANCH}
+      - git reset --hard ${DRONE_COMMIT}
+      - docker-compose down
+      - docker-compose up -d --build --force-recreate
+      - docker image prune -f
+  when:
+    event:
+      - pull_request
+    action:
+      include:
+        - opened
+        - reopened
+        - synchronized