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https://github.com/saulshanabrook/buildpack
Heroku on Docker
https://github.com/saulshanabrook/buildpack
Last synced: 7 days ago
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Heroku on Docker
- Host: GitHub
- URL: https://github.com/saulshanabrook/buildpack
- Owner: saulshanabrook
- Created: 2014-12-26T04:13:03.000Z (almost 10 years ago)
- Default Branch: master
- Last Pushed: 2014-12-29T15:08:39.000Z (almost 10 years ago)
- Last Synced: 2023-03-23T11:43:56.003Z (over 1 year ago)
- Language: Shell
- Homepage:
- Size: 180 KB
- Stars: 1
- Watchers: 0
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
Awesome Lists containing this project
README
# Buildpack
A base image that allows easy extension to run Heroku like apps.
## Quickstart
If you have a Heroku app, just run add a Dockerfile:
```
FROM saulshanabrook/buildpack
CMD start web
```
Build it
```bash
$ docker build -t app .
```
...and run it
```bash
$ docker run -rm -it -p 8080:8080 app .
```
## Environmental Variables
If you want to add some environmental variables when Docker is building
(for example to change the `BUILDPACK_URL`), just add them to a `build.env`
file in the root of your project.
```bash
$ echo 'BUILDPACK_URL=some_crazy_buildpack' >> build.env
```
## How does it work?
I have tried to keep this as small as possible, harnessing all of the actual
logic from Flynn's [slugbuilder](https://github.com/flynn/flynn/tree/master/slugbuilder)
and [slugrunner](https://github.com/flynn/flynn/tree/master/slugrunner).
I am basically copying those Dockerfiles and combinging them, so as to allow
a single image to inherit from which does everything, instead of passing
tarballs around of images and slugs.
Originally I wanted to use the advertised API for slugbuilder and slugrunner,
to build and run the slugs inside the my Docker build, but this would require
running Docker inside a Docker build, [which isn't possible yet](https://github.com/docker/docker/issues/1916#issuecomment-68063263)
## Which buildpacks do you support by defaults?
[The same ones supported by slugbuilder](https://github.com/flynn/flynn/blob/master/slugbuilder/builder/buildpacks.txt)
## Why don't you just use [tutum/buildstep](https://github.com/tutumcloud/buildstep)?
I tried it and it didn't work for my project for some reason. Since Flynn has
already done all the hard work, I figured it would be nice to harness their
projects and build off them.