kube: add target:: convenience field to Service

Change-Id: If69116d93b6074136a36d98973e1aa997e2ebbef
Reviewed-on: https://gerrit.hackerspace.pl/c/hscloud/+/1802
Reviewed-by: q3k <q3k@hackerspace.pl>
diff --git a/kube/redis.libsonnet b/kube/redis.libsonnet
index 9c21c49..f382d8b 100644
--- a/kube/redis.libsonnet
+++ b/kube/redis.libsonnet
@@ -87,7 +87,7 @@
     },
     svc: kube.Service(redis.makeName("redis")) {
         metadata+: redis.metadata,
-        target_pod:: redis.deployment.spec.template,
+        target:: redis.deployment,
         spec+: {
             ports: [
                 { name: "client", port: 6379, targetPort: 6379, protocol: "TCP" },