Add explicit distinct_host constraint

traefik.nomad.hcl

@@ -8,6 +8,12 @@ job [[ .traefik.instance | toJSON ]] {
     count          = [[ .traefik.count ]]
     shutdown_delay = "6s"
 
+    # Force different instances to run on distinct nodes
+    constraint {
+      operator = "distinct_hosts"
+      value    = "true"
+    }
+
     network {
       mode = "bridge"