add node affinity

kubernetes/apps/flight-tracker/app/development.yaml

@@ -121,3 +121,13 @@ spec:
         - name: rtl-sdr-swradio0
           hostPath:
             path: /dev/swradio0
+      affinity:
+        nodeAffinity:
+          preferredDuringSchedulingIgnoredDuringExecution:
+            - weight: 100
+              preference:
+                matchExpressions:
+                  - key: kubernetes.io/hostname
+                    operator: In
+                    values:
+                      - rpi5-cluster-node-1