In addition to custom tasks, CNB provides a series of commonly used built-in tasks that developers can use directly.

A built-in task is specified via the Stage's type field in the format <category>:<task> (such as docker:cache, git:auto-merge). Parameters are passed through options, and task outputs can be exported as environment variables via exports for use in subsequent tasks.

All built-in tasks are listed below by category. Click a task to view its detailed reference.

Docker

• docker:cache: Build Docker image cache to speed up dependency installation

cnb

• cnb:await-resolve: Wait/notify mechanism for collaboration across multiple pipelines
• cnb:apply: Trigger sub-pipelines within the same repository
• cnb:trigger: Trigger sub-pipelines in a specified repository
• cnb:read-file: Export file content as environment variables
• cnb:destroy-token: Destroy the pipeline CNB_TOKEN

vscode

• vscode:go: Control the availability of Workspaces environments

git

• git:reviewer: Automatically add reviewers to pull requests
• git:auto-merge: Automatically merge pull requests
• git:issue-update: Update issue status
• git:release: Release repository
• git:pr-commit-message-preset: Set pre-defined commit message for PR
• git:pr-update: Updating the title and labels of the pull request

testing

• testing:coverage: Report unit test coverage

artifact

• artifact:remove-tag: Remove CNB artifact tags

tapd

• tapd:status-update: Update the status of TAPD-associated items (story, task, or bug)
• tapd:comment: Submit TAPD associated item (story, task, or bug) comments

knowledge

• knowledge:update: Build repository docs, issues, etc. into the knowledge base

npc

• npc:go: Execute NPC tasks

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