add deployment step (#310)

Closes #131.

Reviewed-on: #310
Co-authored-by: Max Erenberg <merenber@csclub.uwaterloo.ca>
Co-committed-by: Max Erenberg <merenber@csclub.uwaterloo.ca>

.drone.yml

@@ -46,8 +46,26 @@ steps:
       from_secret: STAGING_TOKEN
   commands:
   - 'curl -XPOST -H "Authorization: $TOKEN" -H "X-Branch: $DRONE_BRANCH" "https://csclub.uwaterloo.ca/~a3thakra/update-csc/"'
+  when:
+    branch:
+      exclude:
+      - main
+
+- name: deploy (production)
+  image: node:16
+  depends_on:
+  - export
+  environment:
+    SSH_KEY:
+      from_secret: DEPLOYMENT_SSH_KEY
+  commands:
+  - 'echo "$SSH_KEY" > /tmp/ssh_key'
+  - ssh -i /tmp/ssh_key www@caffeine.csclub.uwaterloo.ca '~/bin/deploy-website.sh'
+  when:
+    branch:
+    - main
 
 trigger:
   event:
     exclude:
-    - pull_request #avoid double build on PRs
+    - pull_request #avoid double build on PRs