Add scheduler_extra_arguments parameter

Author: treydock

README.md

@@ -296,6 +296,11 @@ controllermanager_extra_volumes => {
 
 Defaults to `{}`.
 
+#### `scheduler_extra_arguments`
+
+A string array of extra arguments passed to the scheduler.
+
+Defaults to `[]`.
 
 #### `create_repos`
 

manifests/config/kubeadm.pp

@@ -43,6 +43,7 @@
   Optional[Array] $apiserver_cert_extra_sans = $kubernetes::apiserver_cert_extra_sans,
   Optional[Array] $apiserver_extra_arguments = $kubernetes::apiserver_extra_arguments,
   Optional[Array] $controllermanager_extra_arguments = $kubernetes::controllermanager_extra_arguments,
+  Optional[Array] $scheduler_extra_arguments = $kubernetes::scheduler_extra_arguments,
   Optional[Array] $kubelet_extra_arguments = $kubernetes::kubelet_extra_arguments,
   String $service_cidr = $kubernetes::service_cidr,
   String $node_name = $kubernetes::node_name,
@@ -124,6 +125,7 @@
     }
     $apiserver_merged_extra_arguments = concat($apiserver_extra_arguments, $cloud_args)
     $controllermanager_merged_extra_arguments = concat($controllermanager_extra_arguments, $cloud_args)
+    $scheduler_merged_extra_arguments = concat($scheduler_extra_arguments, $cloud_args)
 
     # could check against Kubernetes 1.10 here, but that uses alpha1 config which doesn't have these options
     if $cloud_config {
@@ -147,6 +149,7 @@
   } else {
     $apiserver_merged_extra_arguments = $apiserver_extra_arguments
     $controllermanager_merged_extra_arguments = $controllermanager_extra_arguments
+    $scheduler_merged_extra_arguments = $scheduler_extra_arguments
 
     $apiserver_merged_extra_volumes = $apiserver_extra_volumes
     $controllermanager_merged_extra_volumes = $controllermanager_extra_volumes

manifests/init.pp

@@ -233,6 +233,10 @@
 #   A hash of extra volume mounts mounted on the controller manager.
 #   Defaults to []
 #
+# [*scheduler_extra_arguments*]
+#   A string array of extra arguments to be passed to scheduler.
+#   Defaults to []
+#
 # [*delegated_pki*]
 #   Set to true if all required X509 certificates will be provided by external means. Setting this to true will ignore all *_crt and *_key including sa.key and sa.pub files.
 #   Defaults to false
@@ -517,6 +521,7 @@
   Optional[Array] $apiserver_cert_extra_sans                     = [],
   Optional[Array] $apiserver_extra_arguments                     = [],
   Optional[Array] $controllermanager_extra_arguments             = [],
+  Optional[Array] $scheduler_extra_arguments                     = [],
   String $service_cidr                                           = '10.96.0.0/12',
   Optional[String] $node_label                                   = undef,
   Optional[String] $controller_address                           = undef,

spec/classes/config/kubeadm_spec.rb

@@ -323,6 +323,25 @@
     end
   end
 
+  context 'with version = 1.14' do
+    let(:params) do
+      {
+        'kubernetes_version' => '1.14.1',
+        'scheduler_extra_arguments' => ['foo', 'bar'],
+      }
+    end
+
+    let(:config_yaml) { YAML.load_stream(catalogue.resource('file', '/etc/kubernetes/config.yaml').send(:parameters)[:content]) }
+
+    it { is_expected.to contain_file('/etc/kubernetes/config.yaml') }
+    it 'has foo in scheduler arguments' do
+      expect(config_yaml[1]['scheduler']['extraArgs']).to include('foo')
+    end
+    it 'has bar in scheduler arguments' do
+      expect(config_yaml[1]['scheduler']['extraArgs']).to include('bar')
+    end
+  end
+
   context 'with version = 1.14' do
     let(:params) do
       {

templates/v1beta1/config_kubeadm.yaml.erb

@@ -76,6 +76,13 @@ controllerManager:
     pathType: <%= config['pathType'] %>
   <%- end -%>
 <%- end -%>
+scheduler:
+<%- if @scheduler_merged_extra_arguments -%>
+  extraArgs:
+  <%- @scheduler_merged_extra_arguments.each do |arg| -%>
+    <%= arg %>
+  <%- end -%>
+<%- end -%>
 dns:
   type: CoreDNS
 etcd:

templates/v1beta2/config_kubeadm.yaml.erb

@@ -78,6 +78,13 @@ controllerManager:
     pathType: <%= config['pathType'] %>
   <%- end -%>
 <%- end -%>
+scheduler:
+<%- if @scheduler_merged_extra_arguments -%>
+  extraArgs:
+  <%- @scheduler_merged_extra_arguments.each do |arg| -%>
+    <%= arg %>
+  <%- end -%>
+<%- end -%>
 dns:
   type: CoreDNS
 etcd: