Heroku-Terraform

This project creates a basic Heroku infraistructure using Terraform.

Using your Heroku account, it will create the following:

• Pipeline
• 2 apps (Staging and Production)
• Database (Addons for Heroku Postgres)
• Integration of the addons

Pre-requisites and Installation

To run this project you need to have Terraform installed (Version used is v0.12.24)

$ brew install terraform

Setup the project

1. Install the pre-requisites above
2. $ git clone [email protected]:ffscalco/heroku-terraform.git - Clone the project
3. $ cd heroku-terraform - Go into the project folder
4. The file variables.tf have all the variables used in this project. The terraform.tfvars.sample file works like your .env, so copy the terraform.tfvars.sample to a new file terraform.tfvars and replace them with the configuration you'd like. You can have multiple .tfvars files.
5. $ terraform init - Once you have your config set up, you need to initialize terraform, this command will download and install the plugins required by Terraform.

Planning and Applying Changes

• $ terraform plan - dry run the scripts against the provider and check if your scripts are okay.
• $ terraform apply - Once you're happy with your changes, run this command. It will run the configuration against the provider and provision the resources
• $ terraform apply --var-file=other_config.tfvars - To apply your changes using different configuration.
• $ terraform destroy - if you want to delete your infra.

Credits

Many thanks to this blogpost