Set the Google Cloud minimum CPU platform to Intel Haswell
* Intel Haswell or better is available in every zone around the world * Neither Kubernetes nor Typhoon have a particular minimum processor family. However, a few Google Cloud zones still default to Sandy/Ivy bridge (scheduled to shift April 2019). Price is only based on machine type so it is beneficial to opt for the next processor family * Intel Haswell is a suitable minimum since it still allows plenty of liberty in choosing any region or machine type * Likely a slight increase to preemption probability in a few zones, but any lower probability on Sandy/Ivy bridge is due to lower desirability as they're phased out * https://cloud.google.com/compute/docs/regions-zones/
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@ -11,6 +11,12 @@ Notable changes between versions.
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* Recommend updating [terraform-provider-matchbox](https://github.com/coreos/terraform-provider-matchbox) plugin from v0.2.2 to [v0.2.3](https://github.com/coreos/terraform-provider-matchbox/releases/tag/v0.2.3) ([#402](https://github.com/poseidon/typhoon/pull/402))
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#### Google Cloud
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* Set the minimum CPU platform to Intel Haswell ([#405](https://github.com/poseidon/typhoon/pull/405))
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* Haswell or better is available in every zone (no price change)
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* A few zones still default to Sandy/Ivy Bridge (shifts in April 2019)
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#### Addons
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* Improve Prometheus rules and alerts ([#404](https://github.com/poseidon/typhoon/pull/404))
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@ -31,9 +31,10 @@ locals {
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resource "google_compute_instance" "controllers" {
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count = "${var.controller_count}"
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name = "${var.cluster_name}-controller-${count.index}"
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zone = "${element(local.zones, count.index)}"
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machine_type = "${var.controller_type}"
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name = "${var.cluster_name}-controller-${count.index}"
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zone = "${element(local.zones, count.index)}"
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machine_type = "${var.controller_type}"
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min_cpu_platform = "Intel Haswell"
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metadata {
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user-data = "${element(data.ct_config.controller-ignitions.*.rendered, count.index)}"
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@ -23,9 +23,10 @@ resource "google_compute_region_instance_group_manager" "workers" {
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# Worker instance template
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resource "google_compute_instance_template" "worker" {
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name_prefix = "${var.name}-worker-"
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description = "Worker Instance template"
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machine_type = "${var.machine_type}"
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name_prefix = "${var.name}-worker-"
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description = "Worker Instance template"
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machine_type = "${var.machine_type}"
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min_cpu_platform = "Intel Haswell"
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metadata {
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user-data = "${data.ct_config.worker-ignition.rendered}"
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@ -31,9 +31,10 @@ locals {
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resource "google_compute_instance" "controllers" {
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count = "${var.controller_count}"
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name = "${var.cluster_name}-controller-${count.index}"
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zone = "${element(local.zones, count.index)}"
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machine_type = "${var.controller_type}"
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name = "${var.cluster_name}-controller-${count.index}"
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zone = "${element(local.zones, count.index)}"
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machine_type = "${var.controller_type}"
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min_cpu_platform = "Intel Haswell"
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metadata {
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user-data = "${element(data.template_file.controller-cloudinit.*.rendered, count.index)}"
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@ -23,9 +23,10 @@ resource "google_compute_region_instance_group_manager" "workers" {
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# Worker instance template
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resource "google_compute_instance_template" "worker" {
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name_prefix = "${var.name}-worker-"
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description = "Worker Instance template"
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machine_type = "${var.machine_type}"
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name_prefix = "${var.name}-worker-"
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description = "Worker Instance template"
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machine_type = "${var.machine_type}"
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min_cpu_platform = "Intel Haswell"
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metadata {
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user-data = "${data.template_file.worker-cloudinit.rendered}"
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