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Build Kubernetes in Docker.

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Scripts and Dockerfile to build a container image, build binaries, run tests, etc.  Also copy output back out to the host machine.
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Joe Beda
2014-06-16 23:16:40 -07:00
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# Building Kubernetes
To build Kubernetes you need to have access to a Docker installation through either of the following methods:
## Requirements
1. Run on Mac OS X. The best way to go is to use `boot2docker`. See instructions [here](https://docs.docker.com/installation/mac/).
2. Run on Linux against a local Docker. Install Docker according to the [instructions](https://docs.docker.com/installation/#installation) for your OS. The scripts here assume that they are using a local Docker server and that they can "reach around" docker and grab results directly from the file system.
## Basic Flow
The scripts directly under `build/` are used to build and test. They will ensure that the `kube-build` Docker image is built (based on `build/build-image/Dockerfile`) and then execute the appropriate command in that container. If necessary (for Mac OS X), the scripts will also copy results out.
The `kube-build` container image is built by first creating a "context" directory in `output/build-image`. It is done there instead of at the root of the Kubernetes repo to minimize the amount of data we need to package up when building the image.
Everything in `build/build-image/` is meant to be run inside of the container. If it doesn't think it is running in the container it'll throw a warning. While you can run some of that stuff outside of the container, it wasn't built to do so.