Section 3. Terraform State.md

Section 3. Terraform State

Terraform State

• Maps real resources to Terraform config
• State is stored locally in a file called terraform.tfstate by default
• Any modification, Terraform refreshes the state file
• Resource dependency is tracked via the state file
• Boost deployment performance by caching resource attributes for subsequent use

Terraform State Command

• terraform state is a utily to manipulate and read terraform.tfstate:
  • manualy remove a resource
  • listing tracked resources
  • advanced state management

Common commands:

• terraform state list: get all list resources tracked on state file
• terraform state rm: remove manually a resource form state file
• terraform state show: get all info from one resource

Local and Remote State Storage

• By default save state locally
• Saves state to a remote data source: AWS S3, Google Storage, Azure Blob...
• Allow share state file between differents teams
• Allows locking state enable by default, but isn't compatible with all rmeote storage
• You can share "output" values with other Terraform config or code