pulumi-terraform-to-pulumi
Migrate Terraform/OpenTofu projects to Pulumi, including translating HCL source code and/or importing Terraform state into a Pulumi stack. Use when a user wants to convert Terraform to Pulumi, migrate from HCL, or import tfstate into Pulumi. Do NOT trigger for general Terraform-vs-Pulumi comparisons or questions about using both tools side-by-side.
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Install
Works with every agent the skills CLI supports.
npx skills add https://github.com/pulumi/agent-skills --skill pulumi-terraform-to-pulumi- 01
Install
Run the command in your project. The CLI asks which agents to install for.
- 02
Describe the task
Ask your agent for something this skill covers. It loads pulumi-terraform-to-pulumi automatically when relevant.
- 03
Review the result
The agent follows the SKILL.md steps, scripts and references bundled with the skill.
SKILL.md
The instructions your agent reads when the skill is triggered.
Migrating from Terraform to Pulumi
Critical constraints — read before acting:
- Do NOT run
pulumi convert— use the terraform-migrate plugin instead, which preserves state mapping.- Do NOT run
pulumi package add terraform-module— this is for a different workflow.- Do NOT create the Pulumi project under
/workspace— create it inside the checked-out repo.- Replace
${terraform_dir}and${pulumi_dir}below with the actual paths confirmed with the user.
First establish scope and plan the migration by working out with the user:
- where the Terraform sources are (
${terraform_dir}) - where the migrated Pulumi project lives (
${pulumi_dir}) - what is the target Pulumi language (such as TypeScript, Python, YAML)
- whether migration aims to setup Pulumi stack states, or only translate source code
Confirm the plan with the user before proceeding.
Create a new Pulumi project in ${pulumi_dir} in the chosen language. Edit sources to be empty and not declare any
resources. Ensure a Pulumi stack exists.
You must run pulumi_up tool before proceeding to ensure initial stack state is written.
If no local .tfstate file exists in ${terraform_dir}, the state may be in a remote backend (S3, Pulumi Cloud, Terraform Cloud, etc.). Pull it before proceeding:
cd ${terraform_dir} && terraform state pull > terraform.tfstate
This works for all backends, including Pulumi Cloud. If terraform is not available, try tofu state pull instead.
Now produce a draft Pulumi state translation:
pulumi plugin run terraform-migrate -- stack \
--from ${terraform_dir} \
--to ${pulumi_dir} \
--out /tmp/pulumi-state.json \
--plugins /tmp/required-providers.json
Do NOT install the plugin as it will auto-install as needed.
Sometimes terraform-migrate plugin fails because tofu refresh is not authorized. DO NOT skip this step. Work with the
user to find or build a Pulumi ESC environment that provides the necessary credentials so the command can succeed. If setting up an ESC environment is not feasible, inform the user that the migration cannot proceed automatically.
Read the generated /tmp/required-providers.json and install all these Pulumi providers into the new project,
respecting the suggested versions even if they downgrade an already installed provider. The file will contain records
such as [{"name":"aws","version":"7.12.0"}].
Install providers as project dependencies using the language-specific package manager (NOT pulumi plugin install,
which only downloads plugins without adding dependencies):
# TypeScript/JavaScript
npm install @pulumi/aws@7.12.0
# Python
pip install pulumi_aws==7.12.0
# Go
go get github.com/pulumi/pulumi-aws/sdk/v7@v7.12.0
# C#
dotnet add package Pulumi.Aws --version 7.12.0
Import the translated state draft (/tmp/pulumi-state.json) into the Pulumi stack:
pulumi stack import --file /tmp/pulumi-state.json
Translate source code to match both the Terraform source and the translated state. Aim for exact match. You can consult
the state draft /tmp/pulumi-state.json for Pulumi resource types and names to use.
Iterate on fixing the source code until pulumi_preview tool confirms that there are no changes to make and the diff
is empty or almost empty. Provider diffs or diffs on tags may be OK.
Offer the user to link an ESC environment to the stack so that each Pulumi stack can seamlessly have access to the provider credentials it needs.
When all looks good, create a Pull Request with the migrated source code.
FAQ
What does the pulumi-terraform-to-pulumi skill do?
Migrate Terraform/OpenTofu projects to Pulumi, including translating HCL source code and/or importing Terraform state into a Pulumi stack. Use when a user wants to convert Terraform to Pulumi, migrate from HCL, or import tfstate into Pulumi. Do NOT trigger for general Terraform-vs-Pulumi comparisons or questions about using both tools side-by-side.
How do I install pulumi-terraform-to-pulumi?
Run npx skills add https://github.com/pulumi/agent-skills --skill pulumi-terraform-to-pulumi in your project. The skills CLI detects the agents you use and copies the skill into the right folder. For Claude Code you can also place the skill folder at ~/.claude/skills/pulumi-terraform-to-pulumi/ (personal) or .claude/skills/pulumi-terraform-to-pulumi/ (project).
Which AI agents can use pulumi-terraform-to-pulumi?
Any agent that supports the open Agent Skills format (a folder with a SKILL.md file), including Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, Windsurf, Cline, OpenCode and more.
Is pulumi-terraform-to-pulumi safe to install?
No partner security audit is available yet. Skills can run commands and scripts, so read the SKILL.md and any bundled files before installing.
Who maintains pulumi-terraform-to-pulumi?
It is published by pulumi in pulumi/agent-skills, and it is an official skill from the maker of the technology it covers. It has 961 recorded installs.
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