Make minimum worker memory configurable

* parameter "web.resources.requests.memory" on https://github.com/concourse/concourse-chart

Author: jochenehret

terraform-modules/concourse/app/concourse.tf

@@ -36,6 +36,11 @@ data "helm_template" "concourse" {
     value = var.gke_workers_pool_node_count
   }
 
+  set {
+    name = "worker.resources.requests.memory"
+    value = var.gke_workers_min_memory
+  }
+
   set {
     name = "web.replicas"
     value = var.gke_default_pool_node_count

terraform-modules/concourse/app/variables.tf

@@ -5,6 +5,7 @@ variable "zone" { nullable = false }
 variable "gke_name" { nullable = false }
 variable "gke_workers_pool_machine_type" { nullable = false }
 variable "gke_workers_pool_node_count" { nullable = false }
+variable "gke_workers_min_memory" { nullable = false }
 variable "gke_default_pool_node_count" { nullable = false }
 
 variable "concourse_helm_version" { nullable = false }

terragrunt/concourse-wg-ci-test/app/terragrunt.hcl

@@ -42,6 +42,7 @@ inputs = {
   gke_name = local.config.gke_name
   gke_workers_pool_machine_type = local.config.gke_workers_pool_machine_type
   gke_workers_pool_node_count = local.config.gke_workers_pool_node_count
+  gke_workers_min_memory = local.config.gke_workers_min_memory
   gke_default_pool_node_count = local.config.gke_default_pool_node_count
 
   load_balancer_ip = dependency.infra.outputs.load_balancer_ip

terragrunt/concourse-wg-ci-test/config.yaml

@@ -71,6 +71,7 @@ gke_default_pool_ssd_count: 0
 # typical config for concourse worker is n4-standard-4 and ssd_count: 1
 # note: economy e2-standard machine can't use local ssd drives
 gke_workers_pool_machine_type: e2-standard-4
+gke_workers_min_memory: 1024Mi
 gke_workers_pool_node_count: 1
 gke_workers_pool_autoscaling_max: 4
 gke_workers_pool_ssd_count: 0

terragrunt/concourse-wg-ci/app/terragrunt.hcl

@@ -42,6 +42,7 @@ inputs = {
   gke_name = local.config.gke_name
   gke_workers_pool_machine_type = local.config.gke_workers_pool_machine_type
   gke_workers_pool_node_count = local.config.gke_workers_pool_node_count
+  gke_workers_min_memory = local.config.gke_workers_min_memory
   gke_default_pool_node_count = local.config.gke_default_pool_node_count
 
   load_balancer_ip = dependency.infra.outputs.load_balancer_ip