Add configurable Iglu cache size and TTL

main.tf

@@ -168,7 +168,11 @@ locals {
     local.resolvers_closed
   ])
 
-  iglu_resolver = templatefile("${path.module}/templates/iglu_resolver.json.tmpl", { resolvers = jsonencode(local.resolvers) })
+  iglu_resolver = templatefile("${path.module}/templates/iglu_resolver.json.tmpl", {
+    resolvers  = jsonencode(local.resolvers)
+    cache_size = var.iglu_cache_size
+    cache_ttl  = var.iglu_cache_ttl_seconds
+  })
 
   hocon = templatefile("${path.module}/templates/config.json.tmpl", {
     project_id                        = var.project_id

templates/iglu_resolver.json.tmpl

@@ -1,8 +1,8 @@
 {
   "schema": "iglu:com.snowplowanalytics.iglu/resolver-config/jsonschema/1-0-2",
   "data": {
-    "cacheSize": 500,
-    "cacheTtl": 600,
+    "cacheSize": ${cache_size},
+    "cacheTtl": ${cache_ttl},
     "repositories": ${resolvers}
   }
 }

variables.tf

@@ -173,6 +173,16 @@ variable "custom_iglu_resolvers" {
   }))
 }
 
+variable "iglu_cache_size" {
+  type    = number
+  default = 500
+}
+
+variable "iglu_cache_ttl_seconds" {
+  type    = number
+  default = 600
+}
+
 # --- Telemetry
 
 variable "telemetry_enabled" {