From 95b8ac5f62816fd8e3e7547e14d047aadf51dba5 Mon Sep 17 00:00:00 2001
From: Maxim Krasilnikov <mak.krasilnikov@gmail.com>
Date: Mon, 5 Feb 2018 16:49:13 +0300
Subject: [PATCH] Added optional controller and scheduler extra args to kubeadm
 config (#2205)

---
 roles/kubernetes/master/defaults/main.yml                | 5 ++++-
 roles/kubernetes/master/templates/kubeadm-config.yaml.j2 | 9 +++++++++
 2 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/roles/kubernetes/master/defaults/main.yml b/roles/kubernetes/master/defaults/main.yml
index 6d32003e4..69e74cf83 100644
--- a/roles/kubernetes/master/defaults/main.yml
+++ b/roles/kubernetes/master/defaults/main.yml
@@ -83,8 +83,11 @@ controller_mgr_custom_flags: []
 scheduler_custom_flags: []
 
 # kubeadm settings
-# Value of 0 means it never expires
+## Value of 0 means it never expires
 kubeadm_token_ttl: 0
+## Extra args for k8s components passing by kubeadm
+kube_kubeadm_controller_extra_args: {}
+kube_kubeadm_scheduler_extra_args: {}
 
 ## Variable for influencing kube-scheduler behaviour
 volume_cross_zone_attachment: false
diff --git a/roles/kubernetes/master/templates/kubeadm-config.yaml.j2 b/roles/kubernetes/master/templates/kubeadm-config.yaml.j2
index c1bb41f74..eafe6f851 100644
--- a/roles/kubernetes/master/templates/kubeadm-config.yaml.j2
+++ b/roles/kubernetes/master/templates/kubeadm-config.yaml.j2
@@ -67,6 +67,15 @@ controllerManagerExtraArgs:
 {% if kube_feature_gates %}
   feature-gates: {{ kube_feature_gates|join(',') }}
 {% endif %}
+{% for key in kube_kubeadm_controller_extra_args %}
+  {{ key }}: {{ kube_kubeadm_controller_extra_args[key] }}
+{% endfor %}
+{% if kube_kubeadm_scheduler_extra_args|length > 0 %}
+schedulerExtraArgs:
+{% for key in kube_kubeadm_scheduler_extra_args %}
+  {{ key }}: {{ kube_kubeadm_scheduler_extra_args[key] }}
+{% endfor %}
+{% endif %}
 apiServerCertSANs:
 {% for san in  apiserver_sans.split(' ') | unique %}
   - {{ san }}