Update to first fully working version.

README.md

@@ -0,0 +1,45 @@
+This application will send Alertmanager alerts through to Gotify.
+
+# Notes
+* Forwards `resolved` alerts, if sent.
+* Defaults, if not sent:
+  | Field       | Default value |
+  |-------------|---------------|
+  | Priority    | `5`           |
+  | Description | `...`         |
+  | Severity    | `Default`     |
+
+
+# Docker
+## Run
+
+e.g.
+```bash
+docker run -e TZ=Europe/London -e GOTIFY_KEY=XXXXXXXX -e GOTIFY_SERVER=gotify -e GOTIFY_PORT=80 alertify:latest
+```
+
+## Compose:
+```yaml
+---
+version: "2"
+services:
+  gotify:
+    image: gotify/server:latest
+    container_name: gotify
+    environment:
+      - TZ=Europe/London
+    volumes:
+      - config/config.yml:/etc/gotify/config.yml
+      - data:/app/data
+    restart: unless-stopped
+
+  alertify:
+    image: alertify:latest
+    container_name: alertify
+    environment:
+      - TZ=Europe/London
+      - GOTIFY_KEY=XXXXXXXXXXXX
+      - GOTIFY_SERVER=gotify
+      - GOTIFY_PORT=80
+    restart: unless-stopped
+```

alertify.py

@@ -65,18 +65,23 @@ class HTTPHandler(SimpleHTTPRequestHandler):
         """
         if not self._healthcheck(message=False):
             return
-            
+
         content_length = int(self.headers['Content-Length'])
         rawdata = self.rfile.read(content_length)
 
         alert = json.loads(rawdata.decode())
 
+        if alert['status'] == 'resolved':
+            prefix = 'Resolved'
+        else:
+            prefix = alert['commonLabels'].get('severity', 'default').capitalize()
+
         gotify_msg = {
             'message': '{}: {}'.format(
-                alert['commonLabels']['severity'].capitalize(),
-                alert['commonAnnotations']['description']
+                prefix,
+                alert['commonAnnotations'].get('description', '...')
             ),
-            'priority': int(alert['commonLabels']['priority']) or 5
+            'priority': int(alert['commonLabels'].get('priority', 5))
         }
 
         (status, reason) = gotify_send(

requirements.txt

@@ -1,3 +1 @@
 # To ensure app dependencies are ported from your virtual environment/host machine into your container, run 'pip freeze > requirements.txt' in the terminal to overwrite this file
-docker
-prometheus_client