From a742c33f58cfb20533915c31232d913b4f49bede Mon Sep 17 00:00:00 2001
From: Daniel Lipovetsky <daniel@platform9.com>
Date: Wed, 23 Jan 2019 17:33:53 -0800
Subject: [PATCH] Taint masters with PreferNoSchedule

Workaround for https://github.com/platform9/ssh-provider/issues/63
---
 cmd/machine.go      | 9 +++++++--
 common/constants.go | 2 ++
 2 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/cmd/machine.go b/cmd/machine.go
index 92b5d46..a6f21b4 100644
--- a/cmd/machine.go
+++ b/cmd/machine.go
@@ -300,8 +300,13 @@ func newProvisionedMachineAndMachine(name string, role clustercommon.MachineRole
 			CreationTimestamp: metav1.Now(),
 		},
 		Spec: clusterv1.MachineSpec{
-			Roles:  []clustercommon.MachineRole{role},
-			Taints: []corev1.Taint{},
+			Roles: []clustercommon.MachineRole{role},
+			Taints: []corev1.Taint{
+				{
+					Key:    common.LabelNodeRoleMaster,
+					Effect: corev1.TaintEffectPreferNoSchedule,
+				},
+			},
 		},
 		Status: clusterv1.MachineStatus{},
 	}
diff --git a/common/constants.go b/common/constants.go
index 454330a..82238b2 100644
--- a/common/constants.go
+++ b/common/constants.go
@@ -66,6 +66,8 @@ Machine IP             Creation Timestamp                      Role
 {{ range $machine := .}}{{ $machine.ObjectMeta.Name }}           {{ $machine.ObjectMeta.CreationTimestamp }}           {{ $machine.Spec.Roles }}
 {{ end }}
 `
+	// LabelNodeRoleMaster specifies that a node is a master
+	LabelNodeRoleMaster = "node-role.kubernetes.io/master"
 )
 
 var (