Terraform modules

• https://learn.hashicorp.com/tutorials/terraform/module

Modules naming convention: terraform-PROVIDER-NAME

• .terraform/modules/

Update modules:

• terraform init -upgrade

List modules and versions:

• cat .terraform/modules/modules.json | jq

Related commands

• terraform providers
• terraform init
• terraform init -upgrade
• terraform get
• terraform get -update
• terraform graph 2>&1 | grep module | grep "{" | cut -d"{" -f1
• terraform get -update | grep Downloading

AWS modules

• module "vpc", iam, ec2-instance
• module "rds"
• module "rds-aurora"
• module "cdn" (AWS CloudFront)
• module s3-bucket (https://registry.terraform.io/modules/terraform-aws-modules/s3-bucket/aws/latest)
• module route53: zones, record (https://registry.terraform.io/modules/terraform-aws-modules/route53/aws/latest)
• module cicd https://registry.terraform.io/modules/cloudposse/cicd/aws/latest
• module eks https://registry.terraform.io/modules/terraform-aws-modules/eks/aws/latest
• notify-slack

Others

• module "vm" (Terraform Libvirt module: https://registry.terraform.io/modules/MonolithProjects/vm/libvirt/latest)

Examples in main.tf

module "consul" {
  source = "./path/to/you/module"
}

module "yourmodule" {
  source = "github.com/your-project/terraform-your-templates/modules/yourmodule"
}

module "ec2_instance" {
  source  = "terraform-aws-modules/ec2-instance/aws"
  version = "~> 3.0"
}

module "your_module" {
  source =  git::[email protected]:your-org/your-project.git?ref=your-branch
}

Errors

• Error: Module not installed
• Error: Unsupported argument

Related terms

• Terraform modules: source
• Terraform module keyword
• Ansible modules
• Terraform resources
• Provider (Terraform): aws
• Terraform registry: https://registry.terraform.io/browse/modules
• AWS CloudFormation modules (Nov 2020)
• ?ref=XXXX
• Child modules: https://www.terraform.io/language/modules#child-modules
• Still destroying
• Learn-terraform-provision-eks-cluster: terraform providers
• Terraform module keyword
• module.
• Standard module structure
• Terraform modules inputs
• depends_on
• Terraform submodule

See also

• Terraform AWS modules: vpc, rds, rds-aurora, cdn, EKS, IAM
• Terraform modules, terraform get, module { source }, AWS modules, module., child modules, Terraform modules inputs, submodules, terraform init -upgrade