From 381557c912d142b4d5830e48a7c7e98e62a20ad9 Mon Sep 17 00:00:00 2001
From: Jesse Haka <haka.jesse@gmail.com>
Date: Thu, 29 Aug 2019 18:23:49 +0300
Subject: [PATCH] make mtu configurable

---
 .../networking.projectcalico.org/k8s-1.12.yaml.template      | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/upup/models/cloudup/resources/addons/networking.projectcalico.org/k8s-1.12.yaml.template b/upup/models/cloudup/resources/addons/networking.projectcalico.org/k8s-1.12.yaml.template
index 174d2f8b1a..e77724c9bc 100644
--- a/upup/models/cloudup/resources/addons/networking.projectcalico.org/k8s-1.12.yaml.template
+++ b/upup/models/cloudup/resources/addons/networking.projectcalico.org/k8s-1.12.yaml.template
@@ -240,9 +240,12 @@ data:
   # essential.
   typha_service_name: "none"
 
-  # TODO: Do we want to configure this?
   # Configure the MTU to use
+  {{- if .Networking.Calico.MTU }}
+  veth_mtu: "{{ .Networking.Calico.MTU }}"
+  {{- else }}
   veth_mtu: "{{- if eq .CloudProvider "openstack" -}}1430{{- else -}}1440{{- end -}}"
+  {{- end }}
 
   # Configure the Calico backend to use.
   calico_backend: "bird"