Terraform vs Ansible — when to use which?
AnsweredTerraform and Ansible both touch infrastructure, and each can technically do some of the other's job, which is what makes the line between them blurry.
What each is actually built for, and which one to reach for when.
1 Answer
Terraform provisions infrastructure. Ansible configures it.
Think of it this way:
- Terraform creates the servers, networks, databases → "Give me 3 EC2 instances with a VPC"
- Ansible configures what's ON the servers → "Install Nginx, deploy my app, set up users"
| Terraform | Ansible | |
|---|---|---|
| Type | Declarative | Declarative tasks, run in order |
| State | Manages state file | Stateless |
| Best for | Cloud resources | Server configuration |
| Language | HCL | YAML |
| Agent | Agentless (API-based) | Agentless (SSH-based) |
Common pattern: Terraform creates infrastructure → Ansible configures it.
Start with Terraform: Infrastructure as Code with Terraform
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