hbase/dev-support/hbase_docker/README.md

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# hbase_docker
## Overview
The Dockerfile in this folder can be used to build a Docker image running
a specific HBase branch or tag(default to master) in standalone mode. It
does this by setting up necessary dependencies, checking out the specific
branch or tag of HBase from GitHub, and then building HBase. By default,
this image will start the HMaster and launch the HBase shell when run.
## Usage
1. Ensure that you have a recent version of Docker installed from
[docker.io](http://www.docker.io).
1. Set this folder as your working directory.
1. Type `docker build -t hbase_docker --build-arg BRANCH_OR_TAG=<branch or tag>.`
to build a Docker image called **hbase_docker**. This may take 10 minutes
or more the first time you run the command since it will create a Maven
repository inside the image as well as checkout the master branch of HBase.
1. When this completes successfully, you can run `docker run -it hbase_docker`
to access an HBase shell running inside of a container created from the
**hbase_docker** image. Alternatively, you can type `docker run -it hbase_docker
bash` to start a container without a running HMaster. Within this environment,
HBase is built in `/root/hbase-bin`.