Buildpacks

Buildpacks provide framework and runtime support for apps. Buildpacks typically examine your apps to determine what dependencies to download and how to configure the apps to communicate with bound services. When you push an app, Cloud Foundry automatically detects an appropriate buildpack for it. This buildpack is used to compile or prepare your app for launch.

docs.cloudfoundry.org, pivotal.io, docs.pivotal.io

How do they work

• bin/detect: Can I handle this?

• bin/supply: If yes, provide the dependencies

• bin/finalize: Prepare the app for launch - runs only for the last buildpack

• bin/release: Build the metadata (env variables, start command, etc)

Reference

Types

• Default buildpacks (included in the platform)

• Community buildpacks: Leverage the community

• Custom buildpacks: Build your own

Examples

• .NET Core buildpack

How to build

• buildpack/pack

• Build and push an image from an app using a Cloud Native Buildpack