terraform-101

See article:

• Getting Started with Terraform (Docker, Mac, IaC)

Usage

Install Terraform (Mac)

brew tap hashicorp/tap
brew install hashicorp/tap/terraform

terraform version

Make sure Docker is running

See if the docker daemon is running

docker ps

Install Docker Desktop

If you need to install docker:

• https://docs.docker.com/desktop/install/mac-install/

Open Docker Desktop

This will start the docker daemon if it isn't running:

open -a Docker

Check it again:

docker ps

Terraform

Init the plan

terraform init

Run the plan

If using Docker for Mac, run this first:

export TF_VAR_docker_endpoint=unix://$HOME/.docker/run/docker.sock

terraform plan

If you run into issues with Docker, check the current context:

docker context ls

Apply the plan

If using Docker for Mac, run this first:

export TF_VAR_docker_endpoint=unix://$HOME/.docker/run/docker.sock

terraform apply

Verify the server is up

docker ps

If you have a lot of containers running already, you can filter with:

docker ps | grep random

Test the server

curl http://localhost:1220/v1/people/1

curl http://localhost:1220/v1/words/1

curl http://localhost:1220/v1/values/1

curl http://localhost:1220/v1/coords/1

For more commands see:

• https://hub.docker.com/r/mitchallen/random-server

Destroy the plan

terraform destroy

Verify the container is gone

docker ps

References

• https://developer.hashicorp.com/terraform/cli/commands/plan
• https://spacelift.io/blog/terraform-plan
• https://developer.hashicorp.com/terraform/downloads
• https://hub.docker.com/r/mitchallen/random-server
• https://dev.to/pavanbelagatti/using-terraform-to-manage-infrastructure-resources-32da
• https://dockerlabs.collabnix.com/advanced/automation/terraform/terraform-mac-nginx.html
• https://developer.hashicorp.com/terraform/tutorials/docker-get-started/docker-build
• https://stackoverflow.com/questions/73451024/where-to-find-information-about-the-following-terraform-provider-attribute-depre
• https://raw.githubusercontent.com/github/gitignore/main/Terraform.gitignore