modified variables.tf, main.tf and added github action to create the artifact based on release tag

Author: Roberto Sanchez

.github/workflows/lambda_zip.yaml

@@ -8,32 +8,26 @@ on:
 
 jobs:
   build:
-    run-on: ubuntu-latest
-    # create the zip file 
+    runs-on: ubuntu-latest
+    # create the zip file
     steps:
       - name: Checkout code
         uses: actions/checkout@v2
+
       - name: Build Lambda Function
         run: |
-          zip -9yr  lambda.zip rolling-start.py
-      - name: Create release
-        id: create_release
-        uses: actions/create-release@v1
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-        with:
-          tag_name: ${{ github.ref }}
-          release_name: Release ${{ github.ref }}
-          draft: false
-          prelease: true
+          zip lambda.zip rolling-restart.py
+          ls
+
+      - name: Get tag 
+        id: get_tag
+        run: |
+          echo ::set-output name=VTAG::$( echo $GITHUB_REF | cut -d / -f 3 )
+
       - name: Upload lambda to assets
         id: upload-lambda-asset
-        uses: actions/upload-release-assets@v1
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        uses: AButler/[email protected]
         with:
-          upload_url: ${{ steps.create_release.outputs.upload_url }}
-          asset_path: ./lambda.zip
-          asset_name: lambda.zip
-          asset_content_type: application/zip
-
+          repo-token: ${{ secrets.GITHUB_TOKEN }}
+          files: '*.zip'
+          release-tag: ${{ steps.get_tag.outputs.VTAG }}

main.tf

@@ -1,18 +1,40 @@
 module "tags" {
   source = "git::https://github.com/rhythmictech/terraform-terraform-tags.git?ref=v0.0.2"
   tags   = var.tags
-
   names = [
     var.name,
     "rolling-restart",
     "lambda",
   ]
 }
 
+module "lambda_version" {
+  source = "rhythmictech/find-release-by-semver/github"
+  version = "~> 1.0"
+
+  repo_name = local.repo_name
+  repo_owner = local.repo_owner
+  version_constrain = "~2.0.1"
+}
+
+locals {
+  lambda_version = module.lambda_version.target_version
+  lambda_version_tag = module.lambda_version.version_info.release_tag
+}
+
+resource "null_resource" "lambda_zip" {
+  triggers = {
+    on_version_change = local.lambda_version
+  }
+}
+
+provisioner "local-exec" {
+    command = "curl -Lso ${path.module/lambda.zip https://github.com/${local.repo_full_ame}/releases/download/${local.lambda_version_tag}/lambda.zip"
+}
+
 data "archive_file" "this" {
   type        = "zip"
-  source_file = "${path.module}/rolling-restart.py"
-  output_path = "${path.module}/tmp/lambda.zip"
+  output_path = "${path.module}/lambda.zip"
 }
 
 data "aws_iam_policy_document" "lambda_assume_role_policy" {
@@ -81,7 +103,7 @@ resource "random_uuid" "lambda_uuid" {}
 
 
 resource "aws_lambda_function" "this" {
-  filename         = data.archive_file.this.output_path
+  filename         = data.github_release.this.zipball_url.output
   function_name    = "${module.tags.name32}_${substr(random_uuid.lambda_uuid.result, 0, 31)}"
   role             = aws_iam_role.this.arn
   handler          = "rolling-restart.handler"

variables.tf

@@ -3,8 +3,11 @@ data "aws_caller_identity" "current" {}
 
 
 locals {
-  account_id = data.aws_caller_identity.current.account_id
-  region     = data.aws_region.current.name
+  account_id     = data.aws_caller_identity.current.account_id
+  region         = data.aws_region.current.name
+  full_repo_name = "${local.repo_owner}/${local.repo_name}"
+  repo_owner     = "rhythmictech"
+  repo_name      + "terraform-aws-asg-rolling-restart-lambda"
 }
 
 variable "loglevel" {