Terraform

Terraform is an open-source infrastructure as code software tool that provides a consistent CLI workflow cloud services

https://learn.hashicorp.com/terraform

Terraform CLI

To install terraform CLI : https://learn.hashicorp.com/tutorials/terraform/install-cli?in=terraform/docker-get-started

The main workflow consists of 3 steps once you have written your Terraform configuration :

• Initialize : prepares the working directory so Terraform can run the configuration.
• Plan : lets you preview any changes before you apply them.
• Apply : executes the changes defined by your configuration to create, update or destroy resources.

The phase of cleaning up the previously-created resources corresponds to Destroy.

terraform --help
terraform init
terraform plan
terraform apply # --auto-approve # -var "xy=xx"
terraform destroy

• terraform CLI Commands : https://www.terraform.io/docs/cli/commands/
• Pratice with the CLI : terraform CLI exercices/trainings
• Kubernetes(GKE-AKS-EKS-Helm) tutorials

Providers - Modules

• Search a specific provider on Terraform registry https://registry.terraform.io/browse/providers
  • hashicorp/azurerm: https://registry.terraform.io/providers/hashicorp/azurerm/latest/docs
  • OpenStack: https://registry.terraform.io/providers/terraform-provider-openstack/openstack/latest/docs/resources/
• Browse modules https://registry.terraform.io/browse/modules

Don't Repeat Yourself - Terragrunt

Keep your Terraform code DRY with terragrunt