New nametfv is now teriac. See what changed and how to move over.
v0.2.1
teriac CLI Terraform commands

Terraform commands

Run init, validate, fmt, plan, apply and destroy through teriac with the managed binary, and turn .tf files into -target flags with --file.

teriac can run the common Terraform commands for you. They use the teriac-managed binary directly (no PATH lookup), so they work even when another terraform comes first on your PATH.

The commands

teriac init
teriac validate
teriac fmt
teriac fmt -- -recursive

teriac plan
teriac apply
teriac destroy

Extra Terraform flags go after --:

teriac init -- -upgrade
teriac plan -- -var="env=prod" -out=tfplan
teriac apply -- tfplan

Every command takes --provider tofu to use OpenTofu instead:

teriac init -p tofu
teriac plan -p tofu -- -var-file=prod.tfvars

Targets from a file: --file

plan, apply and destroy take --file (-f). teriac reads the .tf file and adds a -target for every resource, data and module block it finds. Comments are stripped first, so a commented-out block is never targeted.

teriac plan --file main.tf                        # targets taken from a file
teriac plan --file main.tf --file network.tf      # several files
teriac plan --file main.tf -- -var="env=prod"     # with extra terraform flags

teriac apply --file main.tf -- -auto-approve
teriac destroy --file main.tf -- -auto-approve

Example

Given this network.tf:

resource "aws_vpc" "main" {
  cidr_block = "10.0.0.0/16"
}

# resource "aws_vpc" "old" { ... }   ← ignored, it's a comment

module "subnets" {
  source = "./modules/subnets"
  vpc_id = aws_vpc.main.id
}

data "aws_availability_zones" "available" {}

teriac plan --file network.tf runs:

terraform plan \
  -target=aws_vpc.main \
  -target=module.subnets \
  -target=data.aws_availability_zones.available

This is useful when you work on one file of a large root module and want a fast, focused plan.

Terraform itself warns that -target is for exceptional cases. Run a full plan before you merge.

Or just use terraform

terraform on your PATH is ~/.teriac/bin/terraform, the same binary these commands run, so every other Terraform command works as usual:

terraform state list
terraform workspace select prod
tofu providers lock -platform=linux_amd64