From 86272ee3589aa9ce255c0375004d7a19abd827c5 Mon Sep 17 00:00:00 2001
From: Igor Anic <ianic@inet.hr>
Date: Mon, 6 Dec 2021 16:41:53 +0100
Subject: [PATCH] set node lambda functions limit to 1769MB

Ref:
https://www.sentiatechblog.com/aws-re-invent-2020-day-3-optimizing-lambda-cost-with-multi-threading?utm_source=reddit&utm_medium=social&utm_campaign=day3_lambda

And my metrics from deploy optimizations test.
Each test runs 3 times new (deploy) and destroy project stage.
Testing with different memory size of lambda functions.
Showing aggregate time of all 3 cycles.

442 4m36.496s
885 3m25.648s
1769 2m35.374s
3009 2m27.723s

442 4m41.64s
885 2m57.535s
1769 2m51.921s

1769 2m34.116s
3009 2m21.645s
5308 2m24.637s

1769 2m34.116s
3009 2m21.645s

512 3m44.464s
1024 3m1.944s
2048 2m32.52s
4096 2m11.988s

3009 3m27.002s
5308 3m37.171s
7077 3m14.86s
8846 3m2.501s
---
 cli/controller/setup_stack_template.yml       | 2 +-
 node/terraform/modules/functions-node/main.tf | 6 +++---
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/cli/controller/setup_stack_template.yml b/cli/controller/setup_stack_template.yml
index f7a08d4f..a42a35ed 100644
--- a/cli/controller/setup_stack_template.yml
+++ b/cli/controller/setup_stack_template.yml
@@ -112,7 +112,7 @@ Resources:
       Handler: bootstrap
       Runtime: provided.al2
       Timeout: 900
-      MemorySize: 512
+      MemorySize: 1769
       Architectures: ['arm64']
       Layers:
         - arn:aws:lambda:{{.Region}}:477361877445:layer:terraform-layer:1
diff --git a/node/terraform/modules/functions-node/main.tf b/node/terraform/modules/functions-node/main.tf
index 1d011da3..13a5c8de 100644
--- a/node/terraform/modules/functions-node/main.tf
+++ b/node/terraform/modules/functions-node/main.tf
@@ -3,7 +3,7 @@ locals {
     "deploy" = {
       method       = "POST"
       s3_key       = "${var.functions_path}/deploy.zip"
-      memory_size  = 512
+      memory_size  = 1769
       timeout      = 900
       architecture = "arm64"
       layers       = ["arn:aws:lambda:${var.region}:477361877445:layer:terraform-layer:1"]
@@ -12,7 +12,7 @@ locals {
     "security" = {
       method       = "GET"
       s3_key       = "${var.functions_path}/security.zip"
-      memory_size  = 128
+      memory_size  = 1769
       timeout      = 900
       architecture = "arm64"
       policy       = data.aws_iam_policy_document.security.json
@@ -20,7 +20,7 @@ locals {
     "destroy" = {
       method       = "POST"
       s3_key       = "${var.functions_path}/destroy.zip"
-      memory_size  = 512
+      memory_size  = 1769
       timeout      = 900
       architecture = "arm64"
       layers       = ["arn:aws:lambda:${var.region}:477361877445:layer:terraform-layer:1"]