feat: merge infra repo

Author: nmattia

.gitignore

@@ -31,3 +31,8 @@ lib/
 .firebase/
 firebase.json
 .firebaserc
+
+.terraform
+
+*.tfstate
+*.tfstate.backup

infra/.gitignore

@@ -0,0 +1,6 @@
+.terraform
+*.hi
+*.o
+
+*.tfstate
+*.tfstate.backup

infra/api_gateway.tf

@@ -0,0 +1,59 @@
+resource "aws_api_gateway_rest_api" "example" {
+  name        = "ServerlessExample"
+  description = "Terraform Serverless Application Example"
+}
+
+resource "aws_api_gateway_resource" "proxy" {
+  rest_api_id = "${aws_api_gateway_rest_api.example.id}"
+  parent_id   = "${aws_api_gateway_rest_api.example.root_resource_id}"
+  path_part   = "{proxy+}"
+}
+
+resource "aws_api_gateway_method" "proxy" {
+  rest_api_id   = "${aws_api_gateway_rest_api.example.id}"
+  resource_id   = "${aws_api_gateway_resource.proxy.id}"
+  http_method   = "ANY"
+  authorization = "NONE"
+}
+
+resource "aws_api_gateway_integration" "lambda" {
+  rest_api_id = "${aws_api_gateway_rest_api.example.id}"
+  resource_id = "${aws_api_gateway_method.proxy.resource_id}"
+  http_method = "${aws_api_gateway_method.proxy.http_method}"
+
+  integration_http_method = "POST"
+  type                    = "AWS_PROXY"
+  uri                     = "${aws_lambda_function.example.invoke_arn}"
+}
+
+resource "aws_api_gateway_method" "proxy_root" {
+  rest_api_id   = "${aws_api_gateway_rest_api.example.id}"
+  resource_id   = "${aws_api_gateway_rest_api.example.root_resource_id}"
+  http_method   = "ANY"
+  authorization = "NONE"
+}
+
+resource "aws_api_gateway_integration" "lambda_root" {
+  rest_api_id = "${aws_api_gateway_rest_api.example.id}"
+  resource_id = "${aws_api_gateway_method.proxy_root.resource_id}"
+  http_method = "${aws_api_gateway_method.proxy_root.http_method}"
+
+  integration_http_method = "POST"
+  type                    = "AWS_PROXY"
+  uri                     = "${aws_lambda_function.example.invoke_arn}"
+}
+
+resource "aws_api_gateway_deployment" "example" {
+  depends_on = [
+    "aws_api_gateway_integration.lambda",
+    "aws_api_gateway_integration.lambda_root",
+  ]
+
+  rest_api_id = "${aws_api_gateway_rest_api.example.id}"
+  stage_name  = "test"
+}
+
+
+output "base_url" {
+  value = "${aws_api_gateway_deployment.example.invoke_url}"
+}

infra/default.nix

@@ -0,0 +1,15 @@
+with { pkgs = import ./nix {}; };
+
+rec
+{ function = pkgs.runCommand "build-function" {}
+  ''
+    cp ${./main.js} main.js
+    # Can't be called 'main' otherwise lambda tries to load it
+    cp ${main}/bin/deckdeckgo-handler main_hs
+    mkdir $out
+    ${pkgs.zip}/bin/zip -r $out/function.zip main.js main_hs
+  '';
+
+  main = pkgs.haskellPackagesStatic.deckdeckgo-handler;
+
+}

infra/handler/Main.hs

@@ -0,0 +1,2 @@
+main :: IO ()
+main = putStrLn "Hello, this is DeckDeckGo!"

infra/handler/package.yaml

@@ -0,0 +1,7 @@
+name: deckdeckgo-handler
+
+dependencies:
+    - base
+
+executable:
+    main: Main.hs

infra/lambda.tf

@@ -0,0 +1,63 @@
+provider "aws" {
+  region = "us-east-1"
+}
+
+resource "aws_lambda_function" "example" {
+  function_name = "ServerlessExample"
+
+  # The lambda function
+  filename = "${data.external.build-function.result.build_function_zip_path}"
+
+  # "main" is the filename within the zip file (main.js) and "handler"
+  # is the name of the property under which the handler function was
+  # exported in that file.
+  handler = "main.handler"
+  runtime = "nodejs6.10"
+
+  role = "${aws_iam_role.lambda_exec.arn}"
+}
+
+# IAM role which dictates what other AWS services the Lambda function
+# may access.
+resource "aws_iam_role" "lambda_exec" {
+  name = "serverless_example_lambda"
+
+  assume_role_policy = <<EOF
+{
+  "Version": "2012-10-17",
+  "Statement": [
+    {
+      "Action": "sts:AssumeRole",
+      "Principal": {
+        "Service": "lambda.amazonaws.com"
+      },
+      "Effect": "Allow",
+      "Sid": ""
+    }
+  ]
+}
+EOF
+}
+
+data "external" "build-function" {
+
+  program = [
+    "${path.module}/script/build-function"
+    ]
+
+}
+
+resource "aws_lambda_permission" "apigw" {
+  statement_id  = "AllowAPIGatewayInvoke"
+  action        = "lambda:InvokeFunction"
+  function_name = "${aws_lambda_function.example.arn}"
+  principal     = "apigateway.amazonaws.com"
+
+  # The /*/* portion grants access from any method on any resource
+  # within the API Gateway "REST API".
+  source_arn = "${aws_api_gateway_deployment.example.execution_arn}/*/*"
+}
+
+output "function_zip" {
+  value = "${data.external.build-function.result.build_function_zip_path}"
+}

infra/main.js

@@ -0,0 +1,42 @@
+'use strict'
+
+exports.handler = function(event, context, callback) {
+
+    var fs = require('fs');
+    var files = fs.readdirSync('.');
+
+    var date = new Date();
+    var current_hour = date.getHours();
+    var current_minute = date.getMinutes();
+
+    var body = "";
+
+    try {
+        var exec = require('child_process').exec;
+        exec('./main_hs', (error, stdout, stderr) => {
+            body += `<h1>${stdout}</h1>`;
+            var response = {
+                statusCode: 200,
+                headers: {
+                    'Content-Type': 'text/html; charset=utf-8'
+                },
+                body: body
+            }
+            callback(null, response)
+        });
+    }
+    catch(error) {
+        body += "\n<h2>ERROR: "
+        body += error
+        body += "</h2>"
+        var response = {
+            statusCode: 500,
+            headers: {
+                'Content-Type': 'text/html; charset=utf-8'
+            },
+            body: body
+        }
+        callback(null, response)
+    }
+
+}

infra/nix/default.nix

@@ -0,0 +1,26 @@
+{}:
+with rec
+{ sources = import ./sources.nix;
+  pkgs = import sources.nixpkgs {};
+
+  pkgsStatic =
+    (import "${sources.static-haskell-nix}/survey"
+      { overlays = [ ] ; normalPkgs = import sources.nixpkgs {}; }).pkgs;
+
+  normalHaskellPackages = pkgsStatic.pkgsMusl.haskellPackages.override
+    { overrides = self: super: super //
+      { deckdeckgo-handler = super.callCabal2nix "handler"
+          (pkgs.lib.cleanSource ../handler) {};
+      };
+    };
+
+  haskellPackagesStatic =
+    (import "${sources.static-haskell-nix}/survey"
+      { overlays = [ ] ; normalPkgs = pkgs; inherit normalHaskellPackages; }
+    ).haskellPackages;
+};
+
+pkgs //
+{ inherit haskellPackagesStatic sources;
+  inherit (import sources.niv {}) niv;
+}

infra/nix/sources.json

@@ -0,0 +1,34 @@
+{
+    "nixpkgs": {
+        "url": "https://github.com/NixOS/nixpkgs/archive/88ae8f7d55efa457c95187011eb410d097108445.tar.gz",
+        "owner": "NixOS",
+        "branch": "nixos-18.09",
+        "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz",
+        "repo": "nixpkgs",
+        "sha256": "0qvpzmphdcc80xp88h0ciiia6w25010piwxvslv3b5q6s9m3f6fm",
+        "description": "Nixpkgs/NixOS branches that track the Nixpkgs/NixOS channels",
+        "rev": "88ae8f7d55efa457c95187011eb410d097108445"
+    },
+    "static-haskell-nix": {
+        "homepage": "",
+        "url": "https://github.com/nh2/static-haskell-nix/archive/9781df8a48eade302d159ce63a7ab0c30247788c.tar.gz",
+        "owner": "nh2",
+        "branch": "master",
+        "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz",
+        "repo": "static-haskell-nix",
+        "sha256": "0bmjcza91srz29xxwizzkzzliypb9f8ry84s636x680d168i39hh",
+        "description": "easily build most Haskell programs into fully static Linux executables",
+        "rev": "9781df8a48eade302d159ce63a7ab0c30247788c"
+    },
+    "niv": {
+        "homepage": "https://github.com/nmattia/niv",
+        "url": "https://github.com/nmattia/niv/archive/7f72d723d00fcc3f177138acbfcf9d581beee9e1.tar.gz",
+        "owner": "nmattia",
+        "branch": "master",
+        "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz",
+        "repo": "niv",
+        "sha256": "0177xhz55519xrak1fmv3gilbg8330lmbfkbizkc8zgp58skcmjw",
+        "description": "Easy dependency management for Nix projects",
+        "rev": "7f72d723d00fcc3f177138acbfcf9d581beee9e1"
+    }
+}