Update healthcheck.py

discord_rss_bot/healthcheck.py

@@ -7,12 +7,17 @@ import requests
 
 
 def healthcheck():
-    """Check if the website is up."""
+    """Check if the website is up.
+
+    sys.exit(0): success - the container is healthy and ready for use.
+    sys.exit(1): unhealthy - the container is not working correctly."""
+    # TODO: We should check more than just that the website is up.
     try:
         r = requests.get("http://localhost:5000")
         if r.ok:
             sys.exit(0)
-    except requests.exceptions.RequestException:
+    except requests.exceptions.RequestException as e:
+        print(f"ERROR: {e}")
         sys.exit(1)