Affinity for arm64 (until I get multi-build working)

helm/templates/deployment.yaml

@@ -30,6 +30,15 @@ spec:
       labels:
         role: app
     spec:
+      affinity:
+        nodeAffinity:
+          requiredDuringSchedulingIgnoredDuringExecution:
+            nodeSelectorTerms:
+              - matchExpressions:
+                - key: kubernetes.io/arch
+                  operator: In
+                  values:
+                    - arm64
       containers:
         # Guidance on how to set up interaction with secure registry:
         # https://github.com/k3s-io/k3s/issues/1148#issuecomment-641687668