Disable AWS detailed monitoring on worker nodes

* Basic monitoring (free) is sufficient for casual console browsing
* Detailed monitoring (paid) is not leveraged for CloudWatch anyway
* Favor Prometheus for cloud-agnostic metrics, aggregation, and alerting

CHANGES.md

@@ -17,6 +17,8 @@ Notable changes between versions.
   * Listen for apiserver traffic on port 6443 and forward to controllers (with healthy apiserver)
   * Listen for ingress traffic on ports 80/443 and forward to workers (with healthy ingress controller)
 * Worker pools (advanced) no longer include an extraneous load balancer
+* Disable detailed (paid) monitoring on worker nodes ([#251](https://github.com/poseidon/typhoon/pull/251))
+  * Favor Prometheus for cloud-agnostic metrics, aggregation, alerting, and visualization
 
 #### Bare-Metal
 

aws/container-linux/kubernetes/workers/workers.tf

@@ -41,9 +41,10 @@ resource "aws_autoscaling_group" "workers" {
 
 # Worker template
 resource "aws_launch_configuration" "worker" {
-  image_id      = "${local.ami_id}"
-  instance_type = "${var.instance_type}"
-  spot_price    = "${var.spot_price}"
+  image_id          = "${local.ami_id}"
+  instance_type     = "${var.instance_type}"
+  spot_price        = "${var.spot_price}"
+  enable_monitoring = false
 
   user_data = "${data.ct_config.worker_ign.rendered}"
 

aws/fedora-atomic/kubernetes/workers/workers.tf

@@ -41,9 +41,10 @@ resource "aws_autoscaling_group" "workers" {
 
 # Worker template
 resource "aws_launch_configuration" "worker" {
-  image_id      = "${data.aws_ami.fedora.image_id}"
-  instance_type = "${var.instance_type}"
-  spot_price    = "${var.spot_price}"
+  image_id          = "${data.aws_ami.fedora.image_id}"
+  instance_type     = "${var.instance_type}"
+  spot_price        = "${var.spot_price}"
+  enable_monitoring = false
 
   user_data = "${data.template_file.worker-cloudinit.rendered}"