Enable node scaling functionality with asg tags

theonestack · Apr 23, 2020 · 9cba6ea · 9cba6ea
1 parent a7083e0
commit 9cba6ea
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Showing 2 changed files with 8 additions and 1 deletion.
diff --git a/eks-cluster.cfhighlander.rb b/eks-cluster.cfhighlander.rb
@@ -14,7 +14,7 @@
     ComponentParam 'InstanceType'
 
     ComponentParam 'SpotPrice', ''
-
+    ComponentParam 'EnableScaling', 'true'
     ComponentParam 'DesiredCapacity', '1'
     ComponentParam 'MinSize', '1'
     ComponentParam 'MaxSize', '2'

diff --git a/eks-cluster.cfndsl.rb b/eks-cluster.cfndsl.rb
@@ -178,6 +178,12 @@
     LaunchTemplateData(template_data)
   }
 
+  asg_tags = [
+    { Key: FnSub("k8s.io/cluster/${EksCluster}"), Value: 'owned' },
+    { Key: 'k8s.io/cluster-autoscaler/enabled', Value: Ref('EnableScaling') }
+  ]
+  asg_tags += tags
+  asg_tags.each {|tag| tag[:PropagateAtLaunch] = true }
   AutoScaling_AutoScalingGroup(:EksNodeAutoScalingGroup) {
     UpdatePolicy(:AutoScalingRollingUpdate, {
       MaxBatchSize: '1',
@@ -193,6 +199,7 @@
       LaunchTemplateId: Ref(:EksNodeLaunchTemplate),
       Version: FnGetAtt(:EksNodeLaunchTemplate, :LatestVersionNumber)
     })
+    Tags asg_tags
   }