Add middleware support to service levant template

service.nomad

@@ -7,6 +7,7 @@
 # args = json(list[str])
 # resources = dict(cpu = int, mem = int)
 # env = json(dict(str: any))
+# ingress_middlewares = json(list(str))
 # templates = json(list(dict(
 #   data = str,
 #   dest = str,
@@ -125,6 +126,9 @@ job "[[.name]]" {
         [[ if not (empty .ingress_rule) -]]
         "traefik.http.routers.[[.name]].rule=[[.ingress_rule]]",
         [[ end -]]
+        [[ with .ingress_middlewares -]][[ range $m := . | parseJSON -]]
+        "traefik.http.routers.[[$.name]].middlewares=[[ $m ]]",
+        [[ end -]][[ end -]]
         [[ end -]]
       ]
     }