Generic Builder

Buildpacks has a default generic builder that creates containerimages designed to run on Google Cloud services, including but not limited to:Google Kubernetes Engine, GKE Enterprise, Cloud Run, App Engine, andCloud Run functions.

The buildpacks generic builder:

1. Automatically detects the language of your source code. The buildpacksgeneric builder scans common project configuration files to determine the specificlanguage version.For example, if the builder detects the source code as Node.js, itthen inspects theengines field in thepackage.json file to determine a specificversion of Node.js. If the builder can't determine a specific version, ituses the latest available version.
2. Determines if that source code is an application (service) or function.
3. Builds your source code into a deployable container image.

The generic builder itself is a container image that's publicly hosted onContainer Registry.

Default builder

To always use the most recent version and operating system, you can specify thelatest tag. Thelatest tag defaults to thegoogle-22 version of thegeneric builder and is used when you run thegcloud run deploy command.If you need to pin to a version, see the instructions about how toUse a specific builder.

builder:google-24 supported runtimes

builder:google-22 supported runtimes

builder:v1 supported languages

App Engine builder

Buildpacks also publish the builders that are used tocontainerize applications for the App Enginesecond-generation runtimes.

The App Engine builders include additional buildpacks andApp Engine-specific configurations. For example, they are optimized forexecution speed and automatic updates. Builders are by runtime language andoperating system:

What's next

• Use a specific builder
• Build an application
• Build a function