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Enable nodelocal dnscache on prow build clusters #1680

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merged 2 commits into from
Feb 19, 2021
Merged

Enable nodelocal dnscache on prow build clusters #1680

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ef68bb5
Enable nodelocal dnscache on prow build clusters
chaodaiG Feb 18, 2021
5c33af5
Fix typo, also add k8s-infra-prow-build cluster
chaodaiG Feb 19, 2021
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3 changes: 3 additions & 0 deletions infra/gcp/clusters/modules/gke-cluster/main.tf
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Expand Up @@ -177,6 +177,9 @@ resource "google_container_cluster" "prod_cluster" {
network_policy_config {
disabled = false
}
dns_cache_config {
enabled = var.enable_node_local_dns_cache
}
}

release_channel {
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6 changes: 6 additions & 0 deletions infra/gcp/clusters/modules/gke-cluster/variables.tf
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Expand Up @@ -51,3 +51,9 @@ variable "release_channel" {
More information about release channels can be found here : https://cloud.google.com/kubernetes-engine/docs/concepts/release-channels.
EOF
}

variable "enable_node_local_dns_cache" {
description = "If this cluster should have NodeLocal DNSCache enabled"
type = string
default = "false"
}
18 changes: 10 additions & 8 deletions infra/gcp/clusters/projects/k8s-infra-prow-build-trusted/prow-build-trusted/main.tf
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Expand Up @@ -23,14 +23,15 @@ This file defines:
*/

locals {
project_id = "k8s-infra-prow-build-trusted"
cluster_name = "prow-build-trusted" // The name of the cluster defined in this file
cluster_location = "us-central1" // The GCP location (region or zone) where the cluster should be created
bigquery_location = "US" // The bigquery specific location where the dataset should be created
pod_namespace = "test-pods" // MUST match whatever prow is configured to use when it schedules to this cluster
cluster_sa_name = "prow-build-trusted" // Name of the GSA and KSA that pods use by default
gcb_builder_sa_name = "gcb-builder" // Name of the GSA and KSA that pods use to be allowed to run GCB builds and push to GCS buckets
prow_deployer_sa_name = "prow-deployer" // Name of the GSA and KSA that pods use to be allowed to deploy to prow build clusters
project_id = "k8s-infra-prow-build-trusted"
cluster_name = "prow-build-trusted" // The name of the cluster defined in this file
cluster_location = "us-central1" // The GCP location (region or zone) where the cluster should be created
bigquery_location = "US" // The bigquery specific location where the dataset should be created
pod_namespace = "test-pods" // MUST match whatever prow is configured to use when it schedules to this cluster
cluster_sa_name = "prow-build-trusted" // Name of the GSA and KSA that pods use by default
gcb_builder_sa_name = "gcb-builder" // Name of the GSA and KSA that pods use to be allowed to run GCB builds and push to GCS buckets
prow_deployer_sa_name = "prow-deployer" // Name of the GSA and KSA that pods use to be allowed to deploy to prow build clusters
enable_node_local_dns_cache = "true" // Enable NodeLocal DNSCache
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nit to self: I guess meant to keep the locals block for "vars that are going to be reused by multiple resources" vs. "all configurable things go up here", but I didn't comment as such (or do so consistently, e.g. bigquery_location doesn't below up here by such convention)

}

module "project" {
Expand Down Expand Up @@ -131,6 +132,7 @@ module "prow_build_cluster" {
bigquery_location = local.bigquery_location
is_prod_cluster = "true"
release_channel = "STABLE"
enable_node_local_dns_cache = local.enable_node_local_dns_cache
}

module "prow_build_nodepool" {
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16 changes: 9 additions & 7 deletions infra/gcp/clusters/projects/k8s-infra-prow-build/prow-build/main.tf
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Expand Up @@ -24,13 +24,14 @@ This file defines:
*/

locals {
project_id = "k8s-infra-prow-build"
cluster_name = "prow-build" // The name of the cluster defined in this file
cluster_location = "us-central1" // The GCP location (region or zone) where the cluster should be created
bigquery_location = "US" // The bigquery specific location where the dataset should be created
pod_namespace = "test-pods" // MUST match whatever prow is configured to use when it schedules to this cluster
cluster_sa_name = "prow-build" // Name of the GSA and KSA that pods use by default
boskos_janitor_sa_name = "boskos-janitor" // Name of the GSA and KSA used by boskos-janitor
project_id = "k8s-infra-prow-build"
cluster_name = "prow-build" // The name of the cluster defined in this file
cluster_location = "us-central1" // The GCP location (region or zone) where the cluster should be created
bigquery_location = "US" // The bigquery specific location where the dataset should be created
pod_namespace = "test-pods" // MUST match whatever prow is configured to use when it schedules to this cluster
cluster_sa_name = "prow-build" // Name of the GSA and KSA that pods use by default
boskos_janitor_sa_name = "boskos-janitor" // Name of the GSA and KSA used by boskos-janitor
enable_node_local_dns_cache = "true" // Enable NodeLocal DNSCache
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nit: this is unused right now

}

module "project" {
Expand Down Expand Up @@ -106,6 +107,7 @@ module "prow_build_cluster" {
bigquery_location = local.bigquery_location
is_prod_cluster = "true"
release_channel = "STABLE"
enable_node_local_dns_cache = local.enable_node_local_dns_cache
}

module "prow_build_nodepool_n1_highmem_8_maxiops" {
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