feat(lambda): add a layer for lambdas

nfroidure · Sep 28, 2021 · 891ca4e · 891ca4e
1 parent d3a1ee5
commit 891ca4e
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Showing 7 changed files with 43 additions and 7 deletions.
diff --git a/packages/whook-create/src/services/__snapshots__/createWhook.test.ts.snap b/packages/whook-create/src/services/__snapshots__/createWhook.test.ts.snap
diff --git a/packages/whook-create/src/services/createWhook.test.ts b/packages/whook-create/src/services/createWhook.test.ts
@@ -222,6 +222,8 @@ Mr Bean
           "axios": "^0.21.4",
           "babel-plugin-knifecycle": "^5.0.1",
           "chokidar": "^3.5.1",
+          "esbuild": "^0.12.5",
+          "esbuild-node-externals": "^1.3.0",
           "eslint": "^7.23.0",
           "eslint-plugin-prettier": "^3.3.1",
           "jest": "^26.6.3",
@@ -483,6 +485,8 @@ Mr Bean
           "axios": "^0.21.4",
           "babel-plugin-knifecycle": "^5.0.1",
           "chokidar": "^3.5.1",
+          "esbuild": "^0.12.5",
+          "esbuild-node-externals": "^1.3.0",
           "eslint": "^7.23.0",
           "eslint-plugin-prettier": "^3.3.1",
           "jest": "^26.6.3",
@@ -729,6 +733,8 @@ Mr Bean
           "axios": "^0.21.4",
           "babel-plugin-knifecycle": "^5.0.1",
           "chokidar": "^3.5.1",
+          "esbuild": "^0.12.5",
+          "esbuild-node-externals": "^1.3.0",
           "eslint": "^7.23.0",
           "eslint-plugin-prettier": "^3.3.1",
           "jest": "^26.6.3",

diff --git a/packages/whook-example/README.md b/packages/whook-example/README.md
@@ -109,6 +109,12 @@ Build the lambdas:
 NODE_ENV=staging npm run build
 ```
 
+Build the lambdas layer:
+
+```sh
+NODE_ENV=staging bin/lambda_layer.sh
+```
+
 Build the commands Terraform depends on:
 
 ```sh

diff --git a/packages/whook-example/bin/lambda_layer.sh b/packages/whook-example/bin/lambda_layer.sh
@@ -0,0 +1,7 @@
+mkdir -p layer/nodejs;
+cp package.json layer/nodejs/package.json;
+cp package-lock.json layer/nodejs/package-lock.json;
+docker run --entrypoint "" -v "$PWD/layer/nodejs":/var/task "public.ecr.aws/lambda/nodejs:14" /bin/sh -c "yum install -y gcc gcc-c++ make; npm i --production; sudo chown -R $USER /var/task; exit";
+env --chdir "$PWD/layer" zip -r ../lambda_layer.zip .;
+docker run --entrypoint "" -v "$PWD/layer/nodejs":/var/task "public.ecr.aws/lambda/nodejs:14" /bin/sh -c "rm -rf node_modules; exit";
+rm -rf layer/nodejs;
diff --git a/packages/whook-example/package.json b/packages/whook-example/package.json
@@ -39,7 +39,8 @@
         "lambdas",
         ".terraform",
         "*.plan",
-        "*.tfstate.d"
+        "*.tfstate.d",
+        "lambda_layer.zip"
       ],
       "bundleFiles": [
         "bin",
@@ -121,6 +122,8 @@
     "axios": "^0.21.4",
     "babel-plugin-knifecycle": "^5.0.1",
     "chokidar": "^3.5.1",
+    "esbuild": "^0.12.5",
+    "esbuild-node-externals": "^1.3.0",
     "eslint": "^7.23.0",
     "eslint-plugin-prettier": "^3.3.1",
     "jest": "^26.6.3",

diff --git a/packages/whook-example/src/config/common/config.ts b/packages/whook-example/src/config/common/config.ts
@@ -152,6 +152,11 @@ const CONFIG: AppConfigs = {
       'User-Agent',
     ].join(','),
   },
+  COMPILER_OPTIONS: {
+    externalModules: [],
+    ignoredModules: [],
+    excludeNodeModules: true,
+  },
 };
 
 export default CONFIG;
diff --git a/packages/whook-example/terraform/lambdas.tf b/packages/whook-example/terraform/lambdas.tf
@@ -71,6 +71,14 @@ data "external" "envvars" {
   working_dir = ".."
 }
 
+resource "aws_lambda_layer_version" "lambda_layer" {
+  filename            = "../lambda_layer.zip"
+  layer_name          = "api-lambda-layer"
+  description         = "A layer with all lambdas node modules"
+  source_code_hash    = filebase64sha256("../package-lock.json")
+  compatible_runtimes = ["nodejs14.x"]
+}
+
 data "archive_file" "lambdas" {
   for_each    = data.external.lambdas.result
   type        = "zip"
@@ -88,6 +96,7 @@ resource "aws_lambda_function" "lambda_function" {
   source_code_hash = data.archive_file.lambdas[each.key].output_base64sha256
   memory_size      = split("|", each.value)[3]
   timeout          = split("|", each.value)[2]
+  layers           = [aws_lambda_layer_version.lambda_layer.arn]
   environment {
     variables = zipmap(
       keys(data.external.envvars.result),
@@ -98,7 +107,7 @@ resource "aws_lambda_function" "lambda_function" {
 }
 
 resource "aws_cloudwatch_log_group" "cloudwatch_log_group" {
-  for_each = data.external.lambdas.result
-  name     = "/aws/lambda/${terraform.workspace}_${each.key}"
+  for_each          = data.external.lambdas.result
+  name              = "/aws/lambda/${terraform.workspace}_${each.key}"
   retention_in_days = terraform.workspace == "production" ? 90 : 3
 }