vBrownbag 2013 June 4th - Puppet and Razor - Jonas Rosland

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Automated OS & App
Deployment
Using Puppet and Razor
Jonas Rosland
Software-Defined Specialist
@virtualswede

Project Manager
Is a person who thinks nine women
can deliver a baby in one month

Puppetize everything!

What is Puppet?
IT automation software
Helps system administrators manage
infrastructure throughout its lifecycle
Provisioning and configuration
Patch management and compliance
Highly scalable

How scalable?
Google manages more than 50000 systems
Zynga scaled from 0 to 10000 servers in 2
months
I am managing tens of machines!

Why is Puppet cool?
Centralized, Scalable configuration management for
server farms
Abstracted from underlying OS (to a point)
Configurations can be stored in a version control
system (like Git) for historical change tracking
Automated configuration of individual machines
based on hardware/software configuration
Auditing of configuration of individual machines

Where Puppet helps
Bridge the gap between sysadmins and app/dev
teams
Using a common structure to create Dev, QA and
Production environments
Standardizing applications and their configurations
Result: Consistent platforms throughout with
minimal pain

Puppet gives you
Software-Defined Infrastructure

Example of a Puppet manifest
node /blogserver/ {
include ntp
include wordpress
firewall { '100 allow http':
proto => 'tcp',
dport => '80',
action => 'accept',
}
}

Puppet Architecture

So what’s Razor?
Cloud provisioning tool
Operating Systems AND Hypervisors
Physical AND virtual
Event-driven instead of user-driven

Why not just use templates?
They get old fast
Pre-packages bits are harder to maintain
No easy upgrade to next distro version

So how does it work?

Auto-Discovered Real-Time Inventory
Data
Boots a Micro-Kernel
Primarily using facter
For every hardware node
Eliminating inefficient, error-prone manual
processes
Full insight into the latest, up-to-date status
of your hardware inventory

Dynamic Image Selection
Selects the correct operating system image
Based on auto-discovered, real-time
inventory data
No manual intervention needed

Model-Based Provisioning
Models the desired state of each hardware
node and its operating system
Automatically tracks provisioning progress
toward this state
Full control over a node’s boot sequence and
a complete log of its lifecycle

Open APIs and Plug-in Architecture
RESTful open APIs
Full programmatic control of the rules and
models that govern operating system image
selection and hardware provisioning
Enables the Puppet community to collaborate
and share plug-ins to support any operating
system and any boot sequence

Metal-to-Cloud Application Lifecycle
Management
No need for siloed management tools!

Puppet + Razor = Good!

Razor installation using Puppet
node razor {
class { 'sudo':
config_file_replace => false,
}
include razor
}

Add a broker
rz_broker { 'puppet_broker':
ensure => present,
plugin => 'puppet',
metadata => {
broker_version => '2.7.18',
server => 'puppet.purevirtual.lab',
}
}

Add an image to deploy
rz_image { "ubuntu_precise_image":
ensure => present,
type => 'os',
version => '12.04.1',
source =>
"http://ftp.sunet.se/pub/os/Linux/distributions/ubunt
u/ubuntu-cd/12.04.1/ubuntu-12.04.1-server-
amd64.iso",
}

Add a model for deployment
rz_model { 'install_ubuntu_precise':
ensure => present,
description => 'Ubuntu Precise',
image => 'ubuntu_precise_image',
metadata => {'domainname' => 'purevirtual.lab',
'hostname_prefix' => 'ubuntu-', 'root_password' =>
'password'},
template => 'ubuntu_precise',
}

Finally, create a policy to tie it all
together
rz_policy { 'ubuntu_precise_policy':
ensure => present,
broker => 'puppet_broker',
model => 'install_ubuntu_precise',
enabled => 'true',
tags => ['memsize_1GiB'],
template => 'linux_deploy',
maximum => 10,
}

DEMOTIME!

On the agenda
VMworld 2013
– San Francisco
– AND
– Barcelona
PuppetConf maybe?
Meet me online?

Wanna get started?
How to and best practices on my blog:
http://purevirtual.eu/category/automation/puppet/
http://purevirtual.eu/category/automation/razor/
Send me an email/tweet!
jonas.rosland@emc.com
@virtualswede

vBrownbag 2013 June 4th - Puppet and Razor - Jonas Rosland

vBrownbag 2013 June 4th - Puppet and Razor - Jonas Rosland

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