IAC: Terraform for Heroku Deployment

Author: josephmfaulkner

.eslintcache

@@ -4,9 +4,6 @@
 ![Main Gameplay](/screenshots/main-gameplay.gif)
 
 
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 ## Getting Started
@@ -34,4 +31,16 @@ npm start
 
 By default, the project will run on [localhost:3000](http://localhost:3000/)
 
-- - - -
+- - - -
+
+## Deploying Infrastructure
+The cloud resources can be provisioned automatically using Terraform 
+
+### You will need: 
+* [Terraform (v0.13.0)](https://www.terraform.io/downloads.html)
+```
+cd infrastructure/heroku
+terraform init -var-file="secret.tfvars"
+terraform plan -var-file="secret.tfvars"
+terraform apply -var-file="secret.tfvars"
+```

README.md

@@ -0,0 +1,34 @@
+# Local .terraform directories
+**/.terraform/*
+
+# .tfstate files
+*.tfstate
+*.tfstate.*
+
+# Crash log files
+crash.log
+
+# Exclude all .tfvars files, which are likely to contain sentitive data, such as
+# password, private keys, and other secrets. These should not be part of version 
+# control as they are data points which are potentially sensitive and subject 
+# to change depending on the environment.
+#
+secret.tfvars
+
+# Ignore override files as they are usually used to override resources locally and so
+# are not checked in
+override.tf
+override.tf.json
+*_override.tf
+*_override.tf.json
+
+# Include override files you do wish to add to version control using negated pattern
+#
+# !example_override.tf
+
+# Include tfplan files to ignore the plan output of command: terraform plan -out=tfplan
+# example: *tfplan*
+
+# Ignore CLI configuration files
+.terraformrc
+terraform.rc

infrastructure/heroku/.gitignore

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+
+resource "heroku_app" "testing" {
+  name   = "${var.heroku_testing_app}"
+  region = "${var.heroku_region}"
+
+  config_vars = {
+    APP_ENV = "testing"
+    NODE_ENV = "testing"
+  }
+
+  buildpacks = "${var.heroku_app_buildpacks}"
+}
+
+resource "heroku_app" "production" {
+  name   = "${var.heroku_production_app}"
+  region = "${var.heroku_region}"
+
+  config_vars = {
+    APP_ENV = "production"
+    NODE_ENV = "production"
+  }
+
+  buildpacks = "${var.heroku_app_buildpacks}"
+}

infrastructure/heroku/apps.tf

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+# Build code & release to the app
+resource "heroku_build" "example" {
+  app        = "${heroku_app.testing.name}"
+  source {
+    url     = "https://github.com/josephmfaulkner/stack-em-blocks/archive/refs/tags/0.0.1.tar.gz"
+  }
+}
+
+# Launch the app's web process by scaling-up
+resource "heroku_formation" "example" {
+  app        = "${heroku_app.testing.name}"
+  type       = "web"
+  quantity   = 1
+  size       = "free"
+  depends_on = [heroku_build.example]
+}
+
+output "testing_app_url" {
+  value = "https://${heroku_app.testing.name}.herokuapp.com"
+}

infrastructure/heroku/deployment.tf

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+terraform {
+  required_providers {
+    heroku = {
+      source  = "terraform-providers/heroku"
+      version = ">= 4.0"
+    }
+  }
+}
+
+provider "heroku" {
+  email   = "${var.heroku_account_email}"
+  api_key = "${var.heroku_api_key}"
+}

infrastructure/heroku/main.tf

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+
+output "testing_git_url" {
+    value = "${heroku_app.testing.git_url}"
+}
+
+output "production_git_url" {
+    value = "${heroku_app.production.git_url}"
+}

infrastructure/heroku/outputs.tf

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+resource "heroku_pipeline" "pipeline" {
+    name = "${var.heroku_pipeline_name}"
+}
+
+resource "heroku_pipeline_coupling" "testing" {
+    app = "${heroku_app.testing.name}"
+    pipeline = "${heroku_pipeline.pipeline.id}"
+    stage = "staging"
+}
+
+resource "heroku_pipeline_coupling" "production" {
+    app = "${heroku_app.production.name}"
+    pipeline = "${heroku_pipeline.pipeline.id}"
+    stage = "production"
+}

infrastructure/heroku/pipeline.tf

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+
+heroku_pipeline_name = "stack-em-blocks-pipeline"
+
+heroku_region = "us"
+
+heroku_testing_app = "stack-em-blocks-test"
+heroku_production_app = "stack-em-blocks-heroku-prod"
+
+heroku_app_buildpacks = [
+    "mars/create-react-app"
+]

infrastructure/heroku/terraform.tfvars

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+variable "heroku_account_email" {
+    description = "Email for Heroku Account"
+    type        = string
+}
+
+variable "heroku_api_key" {
+    description = "API Key from Heroku Account"
+    type        = string
+}
+
+variable "heroku_pipeline_name" {}
+
+variable "heroku_region" {}
+
+variable "heroku_testing_app" {}
+
+variable "heroku_production_app" {}
+
+variable "heroku_app_buildpacks" {
+    type = "list"
+}

infrastructure/heroku/variables.tf

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+
+terraform {
+  required_version = ">= 0.13"
+}