Advisory lock service for CI/CD pipelines

Version updated for https://github.com/releasetools/mutex to version v1.2.1.

• This action is used across all versions by 1 repositories.

Action Type

This is a Node action using Node version 24.

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Action Summary

This GitHub Action, mutex, provides a robust solution to manage shared resources in CI/CD pipelines by enforcing advisory locks in a PostgreSQL table. It allows different workflows or commands to wait until a lock is released, preventing race conditions and ensuring proper resource management. The action supports locking and unlocking operations via command-line interface (CLI) and GitHub Actions, with options for customizing the lock duration and behavior through environment variables and inputs.

What’s Changed

• Slack notifications are now switched on by slack-channel alone. A workflow that never asked for them no longer logs a warning about a missing SLACK_BOT_TOKEN on every lock and release.
• Fixed a SLACK_BOT_TOKEN inherited from job-level env: failing any mutex step that set no slack-channel. The channel decides; an unrelated variable in the environment no longer can.

• Releasetools
• GitHub Actions