Merge pull request #49 from cabify/expose-resources

Make prometheis resources configurable in prometheus

apps/prometheus/inputs.tf

@@ -39,6 +39,30 @@ variable "prometheus_config" {
   type        = "string"
 }
 
+variable "prometheus_memory_limit" {
+  description = "Memory limit for the kubernetes prometheus pod"
+  type        = "string"
+  default     = "6Gi"
+}
+
+variable "prometheus_memory_request" {
+  description = "Memory request (minimum) for the kubernetes prometheus pod"
+  type        = "string"
+  default     = "3Gi"
+}
+
+variable "prometheus_cpu_limit" {
+  description = "CPU limit for the prometheus kubernetes pod"
+  type        = "string"
+  default     = "2"
+}
+
+variable "prometheus_cpu_request" {
+  description = "CPU request for the prometheus kubernetes pod"
+  type        = "string"
+  default     = "1"
+}
+
 variable "livenessprobe_delay" {
   description = "Liveness probe delay for prometheus kubernetes pod"
   type        = "string"

apps/prometheus/replication-controller.tf

@@ -98,6 +98,18 @@ resource "kubernetes_replication_controller" "prometheus" {
         image = "prom/prometheus:v2.5.0"
         name  = "prometheus"
 
+        resources {
+          requests {
+            memory = "${var.prometheus_memory_request}"
+            cpu    = "${var.prometheus_cpu_request}"
+          }
+
+          limits {
+            memory = "${var.prometheus_memory_limit}"
+            cpu    = "${var.prometheus_cpu_limit}"
+          }
+        }
+
         port {
           container_port = "${var.prometheus-port}"
         }