Softwr

Cloud · head to head

Terragrunt vs HAProxy

Terragrunt logo

Terragrunt

Cloud

The Open Source IaC Orchestrator Platform Teams Trust

From
Free
Rated
-
Full reviewWebsite
HAProxy logo

HAProxy

Cloud

High-performance TCP and HTTP load balancer

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Terragrunt additional complexity layer on top of Terraform; HAProxy configuration syntax is dense and unforgiving, with a steep initial learning curve
  • They diverge on capability: Terragrunt covers Infrastructure orchestration, HAProxy covers High throughput.

Where they differ

Only the attributes on which Terragrunt and HAProxy actually diverge.

Attributes where Terragrunt and HAProxy differ
AttributeTerragruntHAProxy
Pricing modelUnknownOpen source, no licence fee
PlatformsAWS, Azure, GCPLinux, Docker, Kubernetes, Self-hosted

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated), category (Cloud).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Terragrunt

  • Infrastructure orchestration
  • Run Queue
  • DRY configuration
  • Automated hooks
  • Infrastructure catalog
  • Least-privilege access

Only in HAProxy

  • High throughput
  • Layer 4 and 7
  • Health checking
  • Rate limiting and ACLs

What people use each for

The jobs each tool is most often brought in to do.

Terragrunt

  • Organizing Terraform code across multiple environmentsnot HAProxy
  • Automating infrastructure deployment workflowsnot HAProxy
  • Implementing infrastructure as code templates for developer self-servicenot HAProxy

HAProxy

  • Load balancing at traffic levels where proxy efficiency shows up in the hardware billnot Terragrunt
  • Precise traffic control — rate limits, sticky sessions, complex routing rulesnot Terragrunt
  • TCP load balancing for databases and non-HTTP servicesnot Terragrunt

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Terragrunt

  • Additional complexity layer on top of Terraform
  • Requires understanding of Terraform concepts
  • Paid tier pricing not clearly published

HAProxy

  • Configuration syntax is dense and unforgiving, with a steep initial learning curve
  • No automatic certificate management, unlike newer servers that treat it as default behaviour
  • The built-in stats page is basic, so real observability needs exporters and dashboards
  • A dedicated load balancer is more machinery than small deployments need

Pricing, plan by plan

Terragrunt

Free
  • Open SourceFree
    • Terragrunt CLI - completely free
    • Community support
  • Terragrunt Scale FreeFree
    • Free CI/CD pipeline
    • Unlimited runs and resources
    • For up to 25 infrastructure units
  • Terragrunt Scale Paid$undefined/custom
    • Volume pricing for more than 25 infrastructure units
    • Enterprise support

HAProxy

Free
  • HAProxyFree
    • Full functionality
    • No usage limits
    • Community support

Which should you pick?

Choose Terragrunt if

  • You need infrastructure orchestration.
  • You want to start without paying.
  • You work on AWS, Azure, GCP.
  • You also want run queue.
Terragrunt review

Choose HAProxy if

  • You need high throughput.
  • You want to start without paying.
  • You work on Linux, Docker, Kubernetes, Self-hosted.
  • You also want layer 4 and 7.
HAProxy review

Questions people ask

Is Terragrunt or HAProxy better?
Neither clearly leads. Terragrunt starts at Free and HAProxy at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Terragrunt or HAProxy?
Terragrunt starts at Free and HAProxy at Free.
Does Terragrunt or HAProxy run on more platforms?
Terragrunt runs on AWS, Azure, GCP. HAProxy runs on Linux, Docker, Kubernetes, Self-hosted.
Can I use Terragrunt for free?
Both have a free tier, so you can try either at no cost before committing.
What is Terragrunt best used for?
Terragrunt is most often used for organizing terraform code across multiple environments, automating infrastructure deployment workflows, implementing infrastructure as code templates for developer self-service. Of those, organizing terraform code across multiple environments and automating infrastructure deployment workflows are not what HAProxy is typically brought in for.
What can Terragrunt do that HAProxy cannot?
Terragrunt covers Infrastructure orchestration, Run Queue, DRY configuration, Automated hooks. HAProxy covers High throughput, Layer 4 and 7, Health checking, Rate limiting and ACLs.

Answered from the vendors’ own pages

Terragrunt: Is Terragrunt free?

Yes, the Terragrunt CLI is completely free and open source. Terragrunt Scale offers a free tier for up to 25 infrastructure units.

Source
HAProxy: Is HAProxy free?

Yes, the community version is open source. HAProxy Technologies sells HAProxy Enterprise separately.

Terragrunt: What is the difference between Terragrunt and Terraform?

Terragrunt is an orchestration layer on top of Terraform that handles state management, DRY principles, and deployment automation without replacing Terraform itself.

Source
HAProxy: HAProxy or Nginx?

HAProxy is a specialist load balancer with deeper balancing and health-check features. Nginx also serves static content and is more approachable, which is why it is more common as a general web server.

HAProxy: Does HAProxy handle TLS certificates automatically?

No. Certificate issuance and renewal are external, unlike Caddy where it is automatic.

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