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It's a split decision.
Docker and Terraform solve different problems, so they are not direct substitutes. Choose Docker to build and run containers, develop with Docker Desktop, or isolate AI agents locally or in cloud sandboxes. Choose Terraform to describe, provision, change, and version infrastructure such as compute, storage, networking, DNS, and SaaS features. Docker’s plans price by user or repository, while HCP Terraform’s paid plans price by managed resource. Teams can use both in the same stack.
01Side by side
| Docker | Terraform | |
|---|---|---|
| Pricing model | Docker plans charge per user or repository | HCP Terraform charges per managed resource |
| Free tier | Personal: one user, 100 Hub pulls/hour | Free: 500 resources, one concurrent run |
| Published license scope | DHI Community images: Apache 2.0 | Terraform license not published |
| CLI and documentation | Docker Desktop; agent and sandbox commands | Terraform CLI; configuration and provider docs |
| Deployment model | Run agents locally or in cloud sandboxes | CLI workflows; hosted team option via HCP Terraform |
| Platforms | Mac, Windows, Linux | Web; Terraform also has a CLI |
| Usage limits | Free: one private repo; 100 Hub pulls/hour | Free: 500 resources; one concurrent run |
| Integrations | Images, registries, CI, Claude, MCP, OCI | AWS, Azure, Google Cloud, Oracle Cloud, Docker |
Docker Choose Docker if
- Choose Docker if you build and run containerized applications.
- Choose Docker if you need local or cloud agent sandboxes.
- Choose Docker if your workflow centers on images, registries, and CI.
Terraform Choose Terraform if
- Choose Terraform if you manage infrastructure through configuration.
- Choose Terraform if you need to version infrastructure changes.
- Choose Terraform if teams need HCP Terraform provisioning workflows.
02Pricing at real usage
Docker Personal is free for one user, with one Docker Scout-enabled repo, 100 Docker Hub pulls per hour, and one private repo. Pro costs $11 per user monthly or $9 per user per month billed annually; Team costs $16 or $15, and Business costs $24 either way. Those plans add users, repositories, and Testcontainers Cloud runtime minutes at different tiers. Extra Testcontainers Cloud minutes cost $3 per 100 minutes and expire at subscription end; on-demand minutes cost $4 per 100.
HCP Terraform Free allows unlimited users, up to 500 managed resources, and one concurrent run. Listed paid rates are $0.00013 per resource per hour for Essentials, $0.00064 for Standard, and $0.00135 for Premium. Billing grows with hourly peak managed resources. The listed plans include $500 in HCP credits. Docker scales mainly by seats or repositories; Terraform’s bill scales with managed resources.
03API, SDKs and integration
Docker’s documented integration path is its container workflow: Docker Desktop, existing images and registries, and CI. Its homepage also names Claude, MCP, and OCI compliance, and shows commands for running agents and starting a sandbox. That makes Docker the closer fit when the codebase already builds and distributes container images. The homepage does not identify a general-purpose API or SDK language list.
Terraform uses Terraform configuration language and a CLI to build, change, and version infrastructure. Its documentation covers the configuration language, CLI, provider use, plugin development, Registry publishing, and HCP Terraform. The homepage lists AWS, Azure, Google Cloud Platform, Oracle Cloud, Docker, GitHub Actions, and Vercel in tutorials and use cases. It does not identify SDK language support. Both products document command-line workflows, but their integration targets differ: Docker fits container and agent execution; Terraform connects infrastructure definitions to providers and team provisioning.
04Open source, self-hosting and lock-in
Docker’s DHI Community catalog of open-source images is licensed under Apache 2.0. That does not establish a license for Docker’s broader platform. Terraform’s homepage describes the tool and its workflows but does not state a product-wide open-source license. Check the license for the specific component you plan to distribute or modify.
Docker describes local agent execution, cloud sandboxes, and OCI compliance; Terraform provides a CLI as well as hosted HCP Terraform workflows. Neither homepage specifies a self-hosting option for its governance or team service. Docker’s OCI positioning and Terraform’s versioned configuration point to portable artifacts, but neither homepage details data-export procedures or migration guarantees. Before committing, ask each vendor about self-hosting, state and audit-log export, and the steps required to move workflows off its hosted service.
Questions people ask
What can you use instead of Docker?
It depends on the Docker workflow you need to replace. Terraform is not a direct substitute: it describes and provisions infrastructure, while Docker builds and runs containers and offers agent sandboxes. If you are comparing tools, first separate container development, image distribution, and agent isolation from infrastructure provisioning.
What is Terraform Cloud called now?
HashiCorp’s homepage calls its hosted team infrastructure product HCP Terraform. It also lists Terraform Enterprise documentation and an IBM Terraform Enterprise enterprise plan. Check the current product and contract name with the vendor when evaluating hosting or support.
What are the key differences between Kubernetes and Terraform?
Terraform is an infrastructure-as-code tool for building, changing, and versioning resources such as compute, storage, networking, DNS, and SaaS features. Docker’s comparison here concerns container development and agent isolation. These tools address different layers, so compare them against the workflow you need rather than treating them as interchangeable.
Why are teams moving away from Terraform in 2026?
A broad move away from Terraform cannot be assumed from the product comparison alone. Evaluate the actual constraints in your stack: HCP Terraform’s per-resource billing, its free-tier resource and concurrency limits, and whether its provider and team workflows fit your needs. The listed facts do not establish a general migration trend.