zeppelin/scripts/docker/zeppelin/bin
1ambda e902801773 [ZEPPELIN-2492] Use single Dockerfile for each tag
### What is this PR for?

Use single `Dockerfile` for each release since [apache infra uses tag pushes](https://issues.apache.org/jira/browse/INFRA-12781) to build an image.

- https://issues.apache.org/jira/browse/INFRA-12781

After release process finishes, dockerhub will build using the pushed tag.

### What type of PR is it?
[Improvement]

### What is the Jira issue?

[ZEPPELIN-2492](https://issues.apache.org/jira/browse/ZEPPELIN-2492)

### How should this be tested?

1. `./dev/change_zeppelin_version.sh 0.8.0-SNAPSHOT 0.7.1`
2. Check that version is properly set: `vi scrtips/docker/zeppelin/bin/Dockerfile`
3. Build docker image `cd scripts/docker/zeppelin/bin; docker build -t zeppelin:0.7.1 ./`
4. Run the image: `docker run -p 8080:8080  --rm --name zeppelin zeppelin:0.7.1`

### Screenshots (if appropriate)

NONE

### Questions:
* Does the licenses files need update? - NO
* Is there breaking changes for older versions? - NO
* Does this needs documentation? - NO

Author: 1ambda <1amb4a@gmail.com>

Closes #2318 from 1ambda/ZEPPELIN-2492/use-single-dockerfile-for-each-tag and squashes the following commits:

483bec3 [1ambda] docs: Update README for Dockerfile
5826c8c [1ambda] fix: Use single dockerfile for tag push
2017-05-06 14:57:07 -04:00
..
Dockerfile [ZEPPELIN-2492] Use single Dockerfile for each tag 2017-05-06 14:57:07 -04:00