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Add a builder example section about buildpacks #117

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Add a builder example section about buildpacks #117

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aee26b2
Add a builder example section about buildpacks
nickhammond Oct 1, 2024
af3e729
Add arch option
nickhammond Oct 1, 2024
c9d2103
arch should be set at builder level
nickhammond Oct 1, 2024
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14 changes: 14 additions & 0 deletions docs/configuration/builder-examples.md
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Expand Up @@ -91,6 +91,20 @@ builder:
options: mode=max,image-manifest=true,oci-mediatypes=true
```

## [Building without a Dockerfile locally](#building-without-a-dockerfile-locally)

Your application image can also be built using [cloud native buildpacks](https://buildpacks.io/) instead of using a `Dockerfile` and the default `docker build` process. This example uses Heroku's [ruby](https://github.com/heroku/heroku-buildpack-ruby) and [Procfile](https://github.com/heroku/buildpacks-procfile) buildpack to build your final image.

``` yaml
pack:
builder: heroku/builder:24
buildpacks:
- heroku/ruby
- heroku/procfile
```

To provide any additional customizations to you can add a [project descriptor file](https://buildpacks.io/docs/for-app-developers/how-to/build-inputs/use-project-toml/)(project.toml) in the root of your application.

### [GHA cache configuration](#gha-cache-configuration)

To make it work on the GitHub action workflow, you need to set up the buildx and expose [authentication configuration for the cache](https://docs.docker.com/build/cache/backends/gha/#authentication).
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