Cloudmesh Roll

Contents

• Introduction
• Prerequisites
• Building a roll
  • Adding a roll to a live frontend
• Where installed roll components are
• Using a roll

Introduction

This roll installs Comet cloudmesh client CLI on a virtual cluster frontend that is run on the physical Comet cluster. The CLI provides for maangement of the comet virtual cluster from the virtual cluster forntend. Tested on Rocks 6.2

Prerequisites

1. Python roll roll must be installed on the virtual frontend. It provides python 2.7.9
2. Prerequisites that will be installed by the cloudmesh roll
   • Cloudmesh client 4.6.2 ( form github as of Tue Apr 4 2017) https://github.com/cloudmesh/client.git
   • pip 9.0.1
   • virtualenv 15.1.0

Building a roll

Checkout roll distribution from git repo

# git clone https://github.com/pragmagrid/cloudmesh
# cd cloudmesh/

To build a roll, first execute a script that installs pip and virtualenv as prerequisites for building the cloudmesh client during the roll build stage:

# ./bootstrap.sh

Then build the roll

# make roll

The resulting ISO file cloudmesh-VERSION.iso is the roll that can be added to the virtual cluster frontend.

Adding a roll to a live frontend

Make sure that the python roll is installed.

# rocks add roll cloudmesh-VERSION.iso
# rocks enable roll cloudmesh
# (cd /export/rocks/install; rocks create distro)
# yum clean all
# rocks run roll cloudmesh > add-cloudmesh.sh
# bash add-roll.sh

Where installed roll components are

The following RPMS install:

1. cloudmesh-module: /usr/share/Modules/modulefiles/cloudmesh
2. opt-cloudmesh: /opt/client/
3. opt-cloudmesh-env: /opt/ENV/
4. opt-pip: /opt/python/lib/python2.7/site-packages/pip
5. opt-virtual-env: /opt/python/lib/python2.7/site-packages/

Using a roll

Load the module and initialize the client

# module load cloudmesh
# cm help

The second commadn will generate the template ~/.cloudmeshcloudmesh.yaml file. Initiate the configuration from the template

# cm comet init

Examine if correct and represnet your comet environment. If no errors, run other cm commands as usual

# cm comet cluster