handle strange input without crashing

.gitlab-ci.yml

@@ -1,9 +1,10 @@
-image: python:3.11
+image: python:3.11-bookwork
 
 stages:
   - test 
   - build
 test:
+  image: python:3.11-bookworm
   stage: test
   variables:
     TAILSCALESD_API_KEY: tskey-dummy

tailscalesd/main.py

@@ -140,6 +140,16 @@ def matrix_workers_to_sd(tailnet, device, workers) -> List[Dict]:
 async def matrix_sd(tailnet, devices) -> List[Dict]:
     sd: List[Dict] = []
     for device in devices:
+        hostname = device.get("hostname", None)
+        if not hostname:
+            log.warn("device doesn't have a hostname!", extra={"device": device})
+            continue
+        if "tags" not in device:
+            log.warn(
+                f"device does not have any tags! hostname={hostname}",
+                extra={"device": device},
+            )
+            continue
         if MATRIX_TAG not in device["tags"]:
             continue
         try: