Terraform Cloud vs Self-Hosted: Key Differences and Usage Guide

Terraform Cloud is a managed service by HashiCorp that handles state storage, runs, and collaboration in the cloud, while self-hosted Terraform requires you to manage your own infrastructure and state storage. Terraform Cloud offers easier setup and team features, whereas self-hosted gives full control and customization.

Quick Comparison

Here is a quick side-by-side comparison of Terraform Cloud and self-hosted Terraform setups.

Factor	Terraform Cloud	Self-Hosted Terraform
Management	Managed by HashiCorp, no server setup needed	You manage your own servers and infrastructure
State Storage	Automatically stored and secured in cloud	You configure and secure your own state backend
Collaboration	Built-in team management and VCS integration	Requires external tools for collaboration
Cost	Free tier available, paid plans for teams	Costs depend on your infrastructure and maintenance
Scalability	Scales automatically with usage	Depends on your hardware and setup
Security	Managed security with compliance features	Full control but requires your own security management

Key Differences

Terraform Cloud is a hosted service that simplifies running Terraform by managing state files, locking, and providing a web UI for collaboration. It integrates directly with version control systems and offers team management features out of the box. This reduces the operational overhead and helps teams avoid common pitfalls like state corruption.

In contrast, self-hosted Terraform means you run Terraform on your own machines or servers. You must set up and maintain your own state storage, such as an S3 bucket or a database, and handle locking manually or with additional tools. Collaboration features are not built-in and require external solutions like Git or CI/CD pipelines.

Security in Terraform Cloud is managed by HashiCorp, including encryption and compliance certifications, while self-hosted setups require you to implement your own security measures. Cost-wise, Terraform Cloud offers free and paid tiers, whereas self-hosted costs depend on your infrastructure and maintenance effort.

Code Comparison

This example shows how to configure a Terraform backend for Terraform Cloud to store state and enable remote runs.

hcl

terraform {
  backend "remote" {
    organization = "my-org"
    workspaces {
      name = "my-workspace"
    }
  }
}

resource "aws_s3_bucket" "example" {
  bucket = "my-terraform-cloud-bucket"
  acl    = "private"
}

Output

Terraform state is stored and managed remotely in Terraform Cloud workspace 'my-workspace'.

Self-Hosted Equivalent

This example configures Terraform to use an S3 bucket as a backend for state storage in a self-hosted setup.

hcl

terraform {
  backend "s3" {
    bucket = "my-terraform-state-bucket"
    key    = "state/terraform.tfstate"
    region = "us-east-1"
    encrypt = true
  }
}

resource "aws_s3_bucket" "example" {
  bucket = "my-self-hosted-bucket"
  acl    = "private"
}

Output

Terraform state is stored in the specified S3 bucket under 'state/terraform.tfstate'.

When to Use Which

Choose Terraform Cloud when you want a hassle-free setup with built-in collaboration, automatic state management, and team features without managing servers. It is ideal for teams looking for quick onboarding and managed security.

Choose Self-Hosted Terraform when you need full control over your infrastructure, want to customize backend storage, or have strict compliance requirements that prevent using cloud services. It suits organizations with existing infrastructure expertise and resources to maintain the environment.

Key Takeaways

Terraform Cloud offers managed state, collaboration, and security with minimal setup.

Self-hosted Terraform requires managing your own backend and infrastructure but gives full control.

Use Terraform Cloud for ease and team features; use self-hosted for customization and compliance.

Terraform Cloud scales automatically, while self-hosted depends on your hardware.

Cost varies: Terraform Cloud has free and paid plans; self-hosted costs depend on your resources.