TEC118 –How Do You Manage the Configuration of Your Environments from Metal to Application

TEC118 –
How Do You Manage
the Configuration of
Your Environments
from Metal to
Application
SAP TechEd 2013
Las Vegas
Chris Kernaghan

Presentation Title | Date
Copyright © Capgemini 2013. All Rights Reserved 2
Who am I
Facilitator
Consultant Systems Admin
• Help IT administrate
Infrastructure and applications
• Design processes which meet
business compliance standards
• Build/Design flexible
infrastructures which are adaptable
but controlled
• Migrate customers from outdated
platforms to next generation
platforms
• Help business develop and
deploy leading edge applications
• Curate and administrate flexible
landscape
• Additional to project/chargable
work, so primarily done outside
hours
• Team members need to be highly
adaptable, flexible, autonomous,
bought into the SoPs

What is configuration management?
What does it mean
Configuration of a stack
•Hardware
•Virtualisation hypervisor
•Operating system
•Database
•Application

In the beginning
Configuring your applications was easy
SCP/XCOPY – Application deployment
SSH/RDP – Configuration management
Then things got a little more complex

Excel managed configurations

Word based Architecture documents
Configuration Management is not easy

How do you achieve configuration management
Infrastructure as code

Box huggers versus DevOps
Box Hugger
(SAP Technical)
• Infrastructure is permanent
• Manual processes
• Steps are documented
longhand
• SPOF are common
• Concerned with MTBF
DevOps
(Web Operations)
• Infrastructure is ephemeral
• Automation is used heavily
• Operations are treated in
the same way as code
• Operations are scalable
• Concerned with MTTR

Why use Configuration Management
S – Scheduled
C – Consistent
A – Auditable
R – Repeatable
S – Sharable
• Systems administration is full of boring, repetitive tasks
• Evolve from thick manual run guides to smaller guides on
automated processes
•Create better results driven compliance processes and
records
• Quicker serial/parallel executions
• The execution of the tasks is more controlled
• There are lots of methods of automation, depending on the
layer you are working within
• OS – System schedulers
• Database – triggers or stored procedures
• Application level – scheduled batch or background
jobs
• Captured input session tools
Ability to execute
consistent process to
serve multiple
compliance
frameworks with
different
documentation
requirements – eg,
ITIL, SOX, FDA, etc..

Why we do not automate Configuration Management

What can be managed through code
•Virtualisation hypervisor
– Parameters
– Creation of new hosts
•Operating system
– Parameters
– Users
– File system permissions
– Software Installs
•Database
– Patches
–Parameters

Why use Configuration Management
Scheduled
 Every 30 mins
Consistent
 Cookbook/Manifest driven
 Auditable
 Results recorded
Repeatable
 Scheduled every 30 mins
 Sharable
 Scripts exportable
Agent retrieves
catalog
Agent inspects
resources from
catalogue and
submits report
Console/Agent
compares node
inspections to
baselines and
reports differences
Roll approves
changes into node
Approve or reject
every difference,
revert unapproved
changes
baselines
Write code
(cookbook/manifest)
which defines resources
to audit on which nodes

Configuration Management Systems

Puppetlabs.com Opscode.com CFEngine.com
O/S Support Linux/Unix/Windows Linux/Unix/Windows Linux/Unix/Windows
Comparison of Configuration Management
Puppet Chef CFEngine
Pull Yes Yes Yes
Push No No No
Idempotence Yes Yes Yes
Config Language Declarative/Ruby Ruby Declarative
WebUI Yes Yes No
License GPL v2 Apache GPL
Company Puppet Labs OpsCode CFEngine
Cloud Yes SaaS Yes

Puppet and Chef Flavours
Flavours
Serverless Puppet
Master/Agent Puppet
Puppet Enterprise
Chef Solo
Chef Client & Server
Private Chef
Hosted Chef

Puppet Architecture

Example Puppet script
Set up parameter file
Set the file permissions
Confirm the file source
Execute the command
Copy the install media

Puppet Console

Chef Architecture

Example Chef Script
What packages are required
Mount a filesystem
Set the hostname
Restart service to activate
Write entry into hosts file

Puppet Demo

Chef Demo

www.capgemini.com
The information contained in this presentation is proprietary.
© 2013 Capgemini. All rights reserved.
About Capgemini
With more than 120,000 people in 40 countries, Capgemini is one
of the world's foremost providers of consulting, technology and
outsourcing services. The Group reported 2011 global revenues
of EUR 9.7 billion.
Together with its clients, Capgemini creates and delivers
business and technology solutions that fit their needs and drive
the results they want. A deeply multicultural organization,
Capgemini has developed its own way of working, the
Collaborative Business ExperienceTM, and draws on Rightshore ®,
its worldwide delivery model.
Rightshore® is a trademark belonging to Capgemini

TEC118 –How Do You Manage the Configuration of Your Environments from Metal to Application

Empfohlen

Empfohlen

Weitere ähnliche Inhalte

Was ist angesagt?

Was ist angesagt? (20)

Andere mochten auch

Andere mochten auch (20)

Ähnlich wie TEC118 –How Do You Manage the Configuration of Your Environments from Metal to Application

Ähnlich wie TEC118 –How Do You Manage the Configuration of Your Environments from Metal to Application (20)

Mehr von Chris Kernaghan

Mehr von Chris Kernaghan (11)

Kürzlich hochgeladen

Kürzlich hochgeladen (20)