Erase HDP 2.x and Ambari

Listen:

Since I hack now often with Hortonworks HDP, I also often need to completely clean out my lab environments to get fresh boxes. I figured to write a ugly shell script is more comfortable as bothering my infra guys to reset the VM's in Azure - which also reset all my modifications. Bad!

Anyhow, here's the script in the case anyone has some use, too.

https://github.com/alo-alt/shell/blob/master/rmhdp.bash

As usual, first stop all Ambari managed services. I remove Postgres too, since the setup of a new db done by the installer of Ambari is much more faster than dealing with inconsistencies later.

Side Note: The script is made for RHEL based distributions ;)

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