{matrix,lelegram}: pin to bc01n0{1,2}.hswaw.net

Only these nodes (and bc01n03( are #blesed by freenode.

In the future we should fix this by having custom node labels for
blessed nodes. But this will do for now.

Change-Id: Ia5d7cfcb9329da0de8d596ed40b20b0e0f286f43
diff --git a/kube/mirko.libsonnet b/kube/mirko.libsonnet
index 55ff90e..8f72e8f 100644
--- a/kube/mirko.libsonnet
+++ b/kube/mirko.libsonnet
@@ -102,6 +102,7 @@
             containers:: {
                 main: cfg.container,
             }, 
+            nodeSelector: null,
             container:: error "container(s) must be set",
             ports:: {
                 publicHTTP: {}, // name -> { port: no, dns: fqdn }
@@ -163,6 +164,7 @@
                             },
                         } + cfg.volumes,
                         containers_: cfg.containers,
+                        nodeSelector: cfg.nodeSelector,
 
                         serviceAccountName: component.sa.metadata.name,
                     },