Auto-installs pulumi if it's not available on the user's machine

[JyotinderSingh]

Auto-install Pulumi CLI

Users no longer need to manually install the Pulumi CLI. PulumiCommand.install() from the Automation API now handles downloading and managing the binary automatically when get_stack() is called.

Changes

• stack_manager.py: Use PulumiCommand.install() to auto-install the CLI and pass it to LocalWorkspaceOptions. Logs a message when a fresh install is needed.
• prerequisites_check.py: Remove the check_pulumi() prerequisite since the CLI is now self-managed.
• prerequisites_check_test.py: Remove check_pulumi test cases.

[gemini-code-assist]

Summary of Changes

Hello @JyotinderSingh, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request significantly enhances the user experience by automating the installation of the Pulumi CLI. Users no longer need to manually ensure Pulumi is installed, as the system will now detect its absence and install it on demand. This change streamlines the setup process and reduces potential friction for new users, making the keras-remote infrastructure management more robust and user-friendly.

Highlights

• Automated Pulumi CLI Installation: The Pulumi CLI is now automatically installed if not found on the user's machine, removing the need for manual installation. This is handled by PulumiCommand.install() from the Automation API when get_stack() is called.
• Removed Manual Prerequisite Check: The explicit check_pulumi() prerequisite function has been removed, as the CLI is now self-managed by the automation API.
• Streamlined Test Suite: Test cases related to checking the Pulumi CLI's presence have been removed from prerequisites_check_test.py, simplifying the test suite.

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Changelog

• keras_remote/cli/infra/stack_manager.py
  • Imported shutil and click modules.
  • Implemented logic to check for the Pulumi CLI and initiate an automatic installation via pulumi.automation.PulumiCommand.install() if it's not found, displaying a message to the user.
  • Configured LocalWorkspaceOptions to use the automatically managed Pulumi command.
• keras_remote/cli/prerequisites_check.py
  • Updated the module docstring to reflect the removal of Pulumi CLI checks.
  • Removed the check_pulumi function, which previously verified the Pulumi CLI installation.
  • Removed the call to check_pulumi() from the check_all function.
• keras_remote/cli/prerequisites_check_test.py
  • Removed the parameterized import as it is no longer needed for these tests.
  • Removed check_pulumi from the import list.
  • Refactored TestToolChecks to remove all test cases related to check_pulumi, focusing solely on kubectl checks.

Activity

• No human activity has been recorded on this pull request yet.

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[gemini-code-assist]

Code Review

This pull request introduces a valuable improvement by automatically installing the Pulumi CLI, simplifying the setup process for users. This change aligns well with the project's design principles of automation and user-friendliness. The removal of the manual prerequisite check for Pulumi is correctly implemented. I have one suggestion for stack_manager.py to refine the user-facing message during the auto-installation process, making it less repetitive and more intuitive. Overall, this is a solid enhancement.