V0.12.x configurable dashboard replicas (#1543)

Allow dashboard replicas to be set via cluster.yaml

Author: Kyle Hodgetts

core/controlplane/config/config.go

@@ -215,6 +215,7 @@ func NewDefaultCluster() *Cluster {
 				AdminPrivileges: true,
 				InsecureLogin:   false,
 				AllowSkipLogin:  false,
+				Replicas:        1,
 				Enabled:         true,
 			},
 			Kubernetes: Kubernetes{
@@ -874,6 +875,7 @@ type KubernetesDashboard struct {
 	InsecureLogin    bool             `yaml:"insecureLogin"`
 	AllowSkipLogin   bool             `yaml:"allowSkipLogin"`
 	Enabled          bool             `yaml:"enabled"`
+	Replicas         int              `yaml:"replicas,omitempty"`
 	ComputeResources ComputeResources `yaml:"resources,omitempty"`
 }
 

core/controlplane/config/templates/cloud-config-controller

@@ -4214,7 +4214,7 @@ write_files:
           name: kubernetes-dashboard
           namespace: kube-system
         spec:
-          replicas: 1
+          replicas: {{ .KubernetesDashboard.Replicas }}
           revisionHistoryLimit: 10
           selector:
             matchLabels:

core/root/config/templates/cluster.yaml

@@ -1272,6 +1272,7 @@ kubernetesDashboard:
   adminPrivileges: true
   insecureLogin: false
   allowSkipLogin: false # Only set to true when using dashboard image version v1.10.1+
+  replicas: 1 # 1 is the default
   enabled: true
 # # Optional resource change for Dashboard can be done via using the resources block below and changing the values.
 # # Values below are the default already if not set.

docs/advanced-topics/kubernetes-dashboard.md

@@ -7,6 +7,7 @@ kubernetesDashboard:
   adminPrivileges: true
   insecureLogin: false
   allowSkipLogin: false # Only set to true when using dashboard image version v1.10.1+
+  replicas: 1 # 1 is the default
   enabled: true
   resources:
     requests: