Terraform

• Use IaC to provision and manage any cloud, infrastructure or service
• Declarative configuration files
• Create a reproducible infrastructure
• Terraform Cloud is an alternative to the cli. It's a UI tool that allows CI/CD automation with .tf files

Terraform files

• .terraform/: folder with provider binaries
• .terraform.lock.hcl: lock version of providers
• .terraform.tfstate: state file (not necessarily in sync with the real/current state)
• .terraform.tfstate.backup: last local state
• *.tf: desired state

Providers

• Major Providers: AWS, Azure, GCP, Openstack
• Utilities: e.g., random name generator

• Search for providers on terraform registry: https://registry.terraform.io/browse/providers

• AWS: https://github.com/hashicorp/terraform-provider-aws

Modules

• Modules allows managing complex resources in a simpler manner. E.g., EKS clusters that have several dependencies

• https://registry.terraform.io/browse/modules

• AWS: https://github.com/terraform-aws-modules

• EKS: https://github.com/terraform-aws-modules/terraform-aws-eks