Automated setup

Author: sneb-senacor

.travis.yml

@@ -26,4 +26,5 @@ jobs:
     - stage: delete
       name: Delete all created resources
       script:
-        - "./bin/terraform destroy -auto-approve terraform"
+        # - "./bin/terraform destroy -auto-approve terraform"
+        - echo "Will currently not delete anything."

README.md

@@ -35,6 +35,4 @@ Die Lambda Funktionen werden automatisch verpackt und bei Änderungen hochgelade
 
 ### Lambda
 
-### DynamoDb
-
 ### API Gateway

functions/helloWorldLambda/index.js

@@ -0,0 +1,14 @@
+const handler = (event, _, callback) => {
+  var response = {
+    statusCode: 200,
+    headers: {
+        'Content-Type': 'text/html; charset=utf-8',
+    },
+    body: "<p>Hello world!</p>",
+};
+callback(null, response);
+}
+
+module.exports = {
+  handler
+}

functions/loginLambda/index.js

@@ -0,0 +1,40 @@
+resource "aws_api_gateway_deployment" "helloWorldGateway" {
+  depends_on      = [
+    "aws_api_gateway_integration.helloWorldGet"
+  ]
+
+  rest_api_id     = "${aws_api_gateway_rest_api.helloWorldGateway.id}"
+  stage_name      = "beta"
+}
+
+resource "aws_api_gateway_rest_api" "helloWorldGateway" {
+  name            = "helloWorldApiGateway"
+  description     = "Hello world example"
+
+}
+
+resource "aws_api_gateway_resource" "helloWorld" {
+  rest_api_id     = "${aws_api_gateway_rest_api.helloWorldGateway.id}"
+  parent_id       = "${aws_api_gateway_rest_api.helloWorldGateway.root_resource_id}"
+  path_part       = "hello"
+}
+
+resource "aws_api_gateway_method" "helloWorldGet" {
+  rest_api_id     = "${aws_api_gateway_rest_api.helloWorldGateway.id}"
+  resource_id     = "${aws_api_gateway_resource.helloWorld.id}"
+  http_method     = "GET"
+  authorization   = "NONE"
+}
+
+resource "aws_api_gateway_integration" "helloWorldGet" {
+  rest_api_id                 = "${aws_api_gateway_rest_api.helloWorldGateway.id}"
+  resource_id                 = "${aws_api_gateway_resource.helloWorld.id}"
+  http_method                 = "${aws_api_gateway_method.helloWorldGet.http_method}"
+  integration_http_method     = "POST"
+  type                        = "AWS_PROXY"
+  uri                         = "${aws_lambda_function.schibbler_helloWorldLambda.invoke_arn}"
+}
+
+output "Gateway_URL" {
+  value = "${aws_api_gateway_deployment.helloWorldGateway.invoke_url}"
+}

terraform/apiGateway.tf

@@ -1,4 +1,4 @@
-data "aws_iam_policy_document" "loginLambda_policy" {
+data "aws_iam_policy_document" "helloWorldLambda_policy" {
   statement {
     actions = ["sts:AssumeRole"]
     principals {
@@ -9,14 +9,14 @@ data "aws_iam_policy_document" "loginLambda_policy" {
   }
 }
 
-resource "aws_iam_role" "loginLambda" {
-  name = "schibbler_loginLambda_iam"
+resource "aws_iam_role" "helloWorldLambda" {
+  name = "schibbler_helloWorldLambda_role"
 
-  assume_role_policy = "${data.aws_iam_policy_document.loginLambda_policy.json}"
+  assume_role_policy = "${data.aws_iam_policy_document.helloWorldLambda_policy.json}"
 }
 
 
-resource "aws_iam_role_policy_attachment" "loginLambda_policyAttachment" {
-  role = "${aws_iam_role.loginLambda.name}"
+resource "aws_iam_role_policy_attachment" "helloWorldLambda_policyAttachment" {
+  role = "${aws_iam_role.helloWorldLambda.name}"
   policy_arn = "arn:aws:iam::aws:policy/service-role/AWSLambdaBasicExecutionRole"
 }

terraform/iam.tf

@@ -1,14 +1,23 @@
-data "archive_file" "loginLambdaZip" {
+data "archive_file" "helloWorldLambdaZip" {
   type              = "zip"
-  source_dir        = "functions/loginLambda"
-  output_path       = "output/loginLambda.zip"
+  source_dir        = "functions/helloWorldLambda"
+  output_path       = "output/helloWorldLambda.zip"
 }
 
-resource "aws_lambda_function" "schibbler_loginLambda" {
-  filename          = "output/loginLambda.zip"
-  source_code_hash  = "${data.archive_file.loginLambdaZip.output_base64sha256}"
-  function_name     = "schibblerLoginLambda"
+resource "aws_lambda_function" "schibbler_helloWorldLambda" {
+  filename          = "output/helloWorldLambda.zip"
+  source_code_hash  = "${data.archive_file.helloWorldLambdaZip.output_base64sha256}"
+  function_name     = "schibblerhelloWorldLambda"
   handler           = "index.handler"
-  role              = "${aws_iam_role.loginLambda.arn}"
+  role              = "${aws_iam_role.helloWorldLambda.arn}"
   runtime           = "nodejs8.10"
+}
+
+resource "aws_lambda_permission" "restInvokation" {
+  statement_id              = "AllowExecutionFromAPIGateway"
+  action                    = "lambda:InvokeFunction"
+  function_name             = "${aws_lambda_function.schibbler_helloWorldLambda.arn}"
+  principal                 = "apigateway.amazonaws.com"
+
+  source_arn                = "${aws_api_gateway_deployment.helloWorldGateway.execution_arn}/GET/hello"
 }