Prevent apps from being scheduled on the same node

apps/lldap/deployment.yaml

@@ -9,6 +9,13 @@ metadata:
   name: lldap
 spec:
   replicas: 2
+  topologySpreadConstraints:
+    - maxSkew: 1
+      topologyKey: kubernetes.io/hostname
+      whenUnsatisfiable: ScheduleAnyway
+      labelSelector:
+        matchLabels:
+          type: dummy
   selector:
     matchLabels:
       app: lldap

apps/whoami.yaml

@@ -8,6 +8,13 @@ metadata:
 
 spec:
   replicas: 2
+  topologySpreadConstraints:
+    - maxSkew: 1
+      topologyKey: kubernetes.io/hostname
+      whenUnsatisfiable: DoNotSchedule
+      labelSelector:
+        matchLabels:
+          type: dummy
   selector:
     matchLabels:
       app: whoami