Terragrunt run-all
Runs a Terraform command across all units in the current directory tree, respecting dependency order.
cd environments/prod
terragrunt run-all plan
terragrunt run-all apply
terragrunt run-all destroy # reverse order
dependency-aware ordering
environments/prod/
├── vpc/
├── rds/ # depends on vpc
└── eks/ # depends on vpc
run-all apply applies vpc first, then rds and eks in parallel.
real CI pipeline
# .github/workflows/deploy.yml
- name: Plan all
run: terragrunt run-all plan --terragrunt-non-interactive
working-directory: environments/prod
- name: Apply all
run: terragrunt run-all apply --terragrunt-non-interactive -auto-approve
working-directory: environments/prod
if: github.ref == 'refs/heads/main'
Detect drift in CI without applying:
# exit code 2 = changes detected, 0 = no changes, 1 = error
terragrunt run-all plan \
--terragrunt-non-interactive \
-detailed-exitcode
filtering
# skip a unit
terragrunt run-all apply --terragrunt-exclude-dir environments/prod/rds
# target a single unit and its dependencies
terragrunt run-all apply --terragrunt-include-dir environments/prod/eks
parallelism
# default is unlimited parallel - cap it if you hit API rate limits
terragrunt run-all apply --terragrunt-parallelism 4
output
Each unit prefixes its own output:
[environments/prod/vpc] Apply complete! Resources: 12 added.
[environments/prod/rds] Apply complete! Resources: 4 added.
[environments/prod/eks] Apply complete! Resources: 31 added.
Originally published at https://bard.sh/posts/terragrunt-run-all/