ansible-ambari

Quickly deploy Hadoop with the help of Ansible and Apache Ambari

TODO: More detailed description.

Installation

First, ensure the machines you are deploying to meet the requirements:

• Clean installation of RedHat EL or CentOS 6 (please help to extend to other OSes)
• SSH access with keys & sudo rights
• Valid hostname which resolves in DNS

Next, ensure your control machine (likely your workstation) has the tools it needs:

• Ansible: http://docs.ansible.com/intro_installation.html#installing-the-control-machine
• python-keyczar: pip install --pre python-keyczar
• Tip: OSX users use Homebrew:

xcode-select --install  
ruby -e “$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)”
pip install --pre python-keyczar
brew install ansible

Then get the files:

• clone the repository: git clone https://github.com/seanorama/ansible-ambari.git && cd ansible-ambari
• or download as a zip

Configuration

Edit the configuration where appropriate. At the very least you must add hosts and SSH details

File	Option	Description
hosts	[ambari], [master1], [master2]	put 1 hostname below each of these sections
hosts	[slaves]	put as many hostnames as you like below this
hosts	ansible_ssh_user=	set to the user you can access the machine with. They should have ssh access.
hosts	ansible_ssh_private_key_file	path to the ssh private key to access the machines
group_vars	whatever you like	the deployment will work without this, but you may want to change passwords, the cluster name, ...

Deploying

./ansible-playbook site.yml