shouldiuse.io

Categories

VERDICT

Should I use Terragrunt?

Free Terragrunt-native CI/CD pipeline. Unlimited runs and resources. - terragrunt.io

Depends. Buy if you run many Terraform environments across accounts and want DRY config plus free CI; small teams and Terraform newcomers should stay vanilla. Expect a permanent extra config layer, polarized community opinion, and 2026 CVE patch duty.

Confidence

Medium. Based on ~20 public sources: Reddit threads, security advisories, vendor blogs, and official Gruntwork pages.

Ratings

  • Value for money
  • Ease of use
  • Feature depth
  • Support qualityNo support quality evidence found
  • Security posture

Pricing

Free

Open-source CLI

ModelNot disclosed
Monthly feesNot disclosed
HardwareNot disclosed
Free tierYes
Terragrunt Scale Free TierFree
Gruntwork paid plansContact sales

Best for

  • Multi-account, multi-environment cloud estates
  • Teams DRY-ing repeated Terraform boilerplate
  • Platform teams standardizing IaC at scale
  • Terraform-heavy orgs wanting free native CI

Not for

  • Small teams with a handful of Terraform modules
  • Terraform newcomers — learn vanilla first
  • Anyone wanting a hosted UI; this is CLI glue
  • Teams unwilling to own an HCL layer forever

Gotchas - check before you buy

high

Once adopted, backing out to vanilla Terraform is painful — plan for permanent lock-in.

high

Supply-chain risk: malicious remote modules can trigger file deletion; patch promptly.

medium

Paid Scale/enterprise pricing undisclosed; free tier funnels toward Gruntwork commercial plans.

low

Team debates guaranteed: r/Terraform is polarized on whether Terragrunt is worth it.

Pros and cons

Pros

  • Free open-source orchestration for Terraform and OpenTofu
  • DRYs repeated Terraform config, backends, and dependencies across environments
  • Free native CI/CD tier: unlimited runs and resources
  • Battle-tested; appears in US DoD Big Bang infrastructure templates
  • Mature ecosystem, actively discussed since at least 2017

Cons

  • Extra HCL layer many practitioners consider unnecessary
  • Wiring CI with GitHub Actions frustrates users
  • Debugging pain is a common practitioner complaint
  • 2026 arbitrary file deletion CVE via malicious modules
  • Competing tools (Terramate, Spacelift) claim simpler paths

Sources & method

Analyzed 10/06/2026 - 10 sources - Open-source with a security policy and advisories; multiple 2026 CVEs disclosed, including arbitrary file deletion via malicious modules.

official x3review x5security x2
  • Arbitrary file deletion via malicious remote module, GHSA-8394-6f8r-whxg, published Aug 2026; malicious modules can delete files.
  • Cross-site scripting (CVE-2026-27142), Listed by Snyk for terragrunt, Mar 2026.
  • Improper array index validation in terragrunt-fips, Snyk listing, Sep 2026, affecting the FIPS variant.

Key stats

  • Value for money: 4/5

    Rating

  • Free

    Starting price

  • 10

    Sources

  • Analyzed

  • Value for money: 4/5. Free core; Scale enterprise pricing undisclosed
  • Ease of use: 2/5. Extra HCL layer; frequent debugging complaints
  • Feature depth: 4/5. DRY config, dependencies, runs, CI guardrails
  • Support quality. No support quality evidence found
  • Security posture: 3/5. Advisory process exists; 2026 CVEs disclosed
  • $0 Core CLI price Open source (Gruntwork)
  • Yes Free CI tier Terragrunt Scale free tier, Dec 2025
  • 3 2026 CVEs cited Incl. file deletion and XSS
  • c. 2017 Active since GitHub issue trail

Pricing

Open-source CLI

Free

  • Full orchestration engine
  • Community support

Terragrunt Scale Free Tier

Free

  • Terragrunt-native CI/CD pipeline
  • Unlimited runs and resources

Gruntwork paid plans

Not disclosed

  • Team and enterprise plans
  • Support and guardrails

Security

Open-source with a security policy and advisories; multiple 2026 CVEs disclosed, including arbitrary file deletion via malicious modules.

  • Arbitrary file deletion via malicious remote moduleGHSA-8394-6f8r-whxg, published Aug 2026; malicious modules can delete files.⁴
  • Cross-site scripting (CVE-2026-27142)Listed by Snyk for terragrunt, Mar 2026.⁵
  • Improper array index validation in terragrunt-fipsSnyk listing, Sep 2026, affecting the FIPS variant.

What users say

Reddit sentiment is split: multi-environment shops praise the scale gains while many practitioners argue the extra layer and CI wiring cost more than they return.

“Am I the only one who doesn't like Terragrunt?”
Reddit, r/Terraform
“Use Terragrunt or remain Vanilla tf?”
Reddit, r/devops
“A lot of the problems that Terragrunt solves have been”
Reddit, r/Terraform (post title)

Companies that use it

  • US Department of Defense (Platform One Big Bang)10
Full analysis

Based on ~20 public sources: Reddit threads, security advisories, vendor blogs, and official Gruntwork pages.

Free orchestration layer that pays off only at multi-environment scale; small teams get complexity, not value.

Methodology

Based on ~20 public sources: Reddit threads, security advisories, vendor blogs, and official Gruntwork pages.

Sources

  1. Should I use Terragrunt? : r/Terraformreddit.com
    review
  2. Am I the only one who doesn't like Terragrunt? : r/Terraformreddit.com
    review
  3. Use Terragrunt or remain Vanilla tf? : r/devopsreddit.com
    review
  4. Terragrunt Arbitrary File Deletion (GHSA-8394-6f8r-whxg)github.com
    security
  5. XSS in terragrunt (CVE-2026-27142) — Snyksecurity.snyk.io
    security
  6. Announcing the Terragrunt Scale Free Tiergruntwork.io
    official
  7. Gruntwork Pricinggruntwork.io
    official
  8. Terramate vs Terragrunt: A 2026 Comparisonterramate.io
    review
  9. Terragrunt vs. Terraform — Spaceliftspacelift.io
    review
  10. Big Bang (repo1.dso.mil) terragrunt.hcl templaterepo1.dso.mil
    official

Rate this review

Anonymous. You can change your vote.

Loading votes…

Comments

One queue. No nested comments. Give a display name first. Limit: 200 words per comment and 7 comments per day. You can edit or delete yours.

Save a name to write a comment.

0 / 200 words

No comments yet.