Wire up notifications for failures

.drone.yml

@@ -6,3 +6,20 @@ steps:
     image: golang:1.16
     commands:
       - make build
+
+  - name: notify on failure
+    image: plugins/matrix
+    settings:
+      homeserver: https://matrix.autonomic.zone
+      roomid: "IFazIpLtxiScqbHqoa:autonomic.zone"
+      userid: "@autono-bot:autonomic.zone"
+      accesstoken:
+        from_secret: autono_bot_access_token
+    depends_on:
+      - make build
+    when:
+      status:
+        - failure
+trigger:
+  branch:
+    - main