ironsweet/go-buildpack

Cloud Foundry buildpack for the Go Language

CloudFoundry build pack: Go(Lang)

A Cloud Foundry buildpack for Go(lang) based apps.

This is based on the [Heroku buildpack] (https://github.com/kr/heroku-buildpack-go).

Additional documentation can be found at CloudFoundry.org.

Usage

This buildpack will get used if you have any files with the .go extension in your repository.

cf push my_app -b https://github.com/cloudfoundry/buildpack-go.git

Cloud Foundry Extensions - Offline Mode

The primary purpose of extending the heroku buildpack is to cache system dependencies for firewalled or other non-internet accessible environments. This is called 'offline' mode.

'offline' buildpacks can be used in any environment where you would prefer the system dependencies to be cached instead of fetched from the internet.

The list of what is cached is maintained in bin/package.

Using cached system dependencies is accomplished by overriding curl during staging. See bin/compile

App Dependencies in Offline Mode

Offline mode expects each app to use Godep to manage dependencies. The Godep folder should be populated before pushing your app.

Deprecated

A .godir file containing the name of your application can be used to build the project.

Building

1. Make sure you have fetched submodules

git submodule update --init

1. Build the buildpack

bin/package [ online | offline ]

1. Use in Cloud Foundry

   Upload the buildpack to your Cloud Foundry and optionally specify it by name

   cf create-buildpack custom_go_buildpack go_buildpack-offline-custom.zip 1
   cf push my_app -b custom_go_buildpack

Contributing

Run the tests

There are Machete based integration tests available in cf_spec.

The test script is included in machete and can be run as follows:

BUNDLE_GEMFILE=cf.Gemfile bundle install
git submodule update --init
`BUNDLE_GEMFILE=cf.Gemfile bundle show machete`/scripts/buildpack-build [mode]

buildpack-build will create a buildpack in one of two modes and upload it to your local bosh-lite based Cloud Foundry installations.

Valid modes:

online : Dependencies can be fetched from the internet.

offline : System dependencies, such as python, are installed from a cache included in the buildpack.

The tests expect two Cloud Foundry installations to be present, an online one at 10.244.0.34 and an offline one at 10.245.0.34.

We use bosh-lite for the online instance and bosh-lite-2nd-instance for the offline instance.

Pull Requests

1. Fork the project
2. Submit a pull request

.godir and Godeps

Early versions of this buildpack required users to create a .godir file in the root of the project, containing the application name in order to build the project. While using a .godir file is still supported, it has been deprecated in favor of using godep in your project to manage dependencies, and including the generated Godep directory in your git repository.

Reporting Issues

Open an issue on this project

Active Development

The project backlog is on Pivotal Tracker