Pulumi Automation API adds `install` for NodeJS, Python, and Go

Introduced 2026-10-07 · score 0.96

HOW TO USE IT

When a NodeJS, Python, or Go Automation API workflow needs the Pulumi CLI at runtime, call that language’s `install` interface to download and install it. The default install uses the CLI version matching the SDK and places it under `~/.pulumi/versions/<version>`; pass the returned command to the workspace that runs the stack.

const pulumiCommand = await PulumiCommand.install();
const stack = await LocalWorkspace.createOrSelectStack(args, { pulumiCommand });

const pulumi_command = auto.PulumiCommand.install()
stack = auto.create_or_select_stack(stack_name=stack_name,
                                    project_name=project_name,
                                    program=pulumi_program,
                                    opts=auto.LocalWorkspaceOptions(pulumi_command=pulumi_command))

ctx := context.Background()
pulumiCmd, err := auto.InstallPulumiCommand(ctx, &auto.PulumiCommandOptions{})
if err != nil {
    return err
}
s, err := auto.UpsertStackInlineSource(ctx, stackName, projectName, deployFunc, auto.Pulumi(pulumiCmd))

WHY THIS HELPS

Install Pulumi through the generated Automation API in a NodeJS, Python, or Go workflow.

REQUIREMENTS AND LIMITATIONS

Version: 3.268.0
NodeJS `opts` (optional): `root`: Directory to install the CLI in or find an existing installation; defaults to `$HOME/.pulumi/versions/$VERSION.
NodeJS `opts` (optional): `version`: CLI version to use; defaults to the version matching the SDK.
NodeJS `opts` (optional): `skipVersionCheck`: Skips the minimum CLI version check.
Python `root`: Install directory; defaults to `~/.pulumi/versions/<version>`.
Python `version`: CLI version to install; defaults to the version matching the SDK.
Python `skip_version_check`: Skips version validation; `PULUMI_AUTOMATION_API_SKIP_VERSION_CHECK` also disables the check and takes precedence.
Go `ctx` (required): Context passed to `InstallPulumiCommand`.
Go `opts` (required): Pointer to `PulumiCommandOptions`; documented fields are `Root` (install directory), `Version` (CLI version), and `SkipVersionCheck` (disable version validation). Defaults install the CLI version matching the SDK under `$HOME/.pulumi/versions/$VERSION`.
Prerequisite: Automation API requires the chosen language runtime. The getting-started guide lists Node.js, Python, or Go as applicable runtime prerequisites.
Prerequisite: The Automation API guide says to configure a Pulumi access token or another state backend; deployment examples may also require target cloud credentials.
The generated Automation APIs named in the release are for NodeJS, Python, and Go.

FIRST-PARTY EVIDENCE

Check the installed version and the source before using it. Entry JSON

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Changes

Pulumi Automation API adds `install` for NodeJS, Python, and Go