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This work is licensed under the Creative Commons Attribution 3.0 United States License. To view a copy of this license, visit http://creativecommons.org/licenses/by/3.0/us/
TAMING THE INFRASTRUCTURE GONE WILDIsaac ChristoffersenContributing Partner - Open Source Solutions, Colloquium
OVERVIEW
– THE VISIBLE RAT’S NEST
– THE OBFUSCATED RAT’S NEST
INFRASTRUCTURE SMELLS
– CONFIGURATION DRIFT
– SYSTEMS ENTROPY
– STAFFING ATROPHY
– GOLD IMAGE
– SOFTWARE STACKS
KEY TOOLS
– SYSTEM CONFIGURATION TOOLS
– OS INSTALLATION TOOLS
– VIRTUALIZATION TOOLS
SUMMARY
A NEW SERVER ROOM – COMPLETE WITH THAT “NEW CAR” SMELL
Cables all neatly tied and out of the way.
Room for expansion
THE VISIBLE RAT’S NEST
THE OBFUSCATED RAT’S NEST
PROVISIONING INFRASTRUCTURE IS HARD.
Tools People
Policy
LinuxXenHyperic & DroolsCobbler & KoanPuppet
Linux AdministratorsSAN EngineersNetwork Engineers
Process
Infrastructure
Service Level AgreementsBudgetsStaffing Guidance
Procurement ProcessOrder Fulfillment ProcessStaff Recruitment & Hiring
I need 3 servers to use for the development of a
proof of concept. It's going to be the next big
thing!
Commodity ServersSANsNetworking EquipmentPowerHVAC Systems
OVERVIEW
– THE VISIBLE RAT’S NEST
– THE OBFUSCATED RAT’S NEST
INFRASTRUCTURE SMELLS
– CONFIGURATION DRIFT
– SYSTEMS ENTROPY
– STAFFING ATROPHY
– GOLD IMAGE
– TEETERING STACKS
KEY TOOLS
– SYSTEM CONFIGURATION TOOLS
– OS INSTALLATION TOOLS
– VIRTUALIZATION TOOLS
SUMMARY
SMELL :: CONFIGURATION DRIFT
• Any change outside a baseline configuration is considered a configuration drift.
• Could be an accidental or incidental or intentional.
• Early identification will minimize impact and reduce the risks around business continuity.
PRESCRIPTION :: AUTOMATED CONFIGURATION
SMELL :: SYSTEMS ENTROPY
As a system is modified, its disorder, or entropy, always increases.
• Similar to theories in software development, a system that is used will be modified.
• When a system is modified, its complexity will increase, provided that one is not actively working to reduce complexity.
PRESCRIPTION :: SEPARATION OF CONCERNS
Infrastructure
Software
Platform
DataCenter
How do I get the most of my IT and personnel resources?
How do I store & retrieve my inventory data?How do I deploy my web services?
How can I collaborate across the enterprise?How can I view my corporate sales data?
How can I build my web hosting business?How can I manage my customer relationships?How can I run my company's IT department?
SMELL :: STAFFING ATROPHY
“Atrophy is the partial or complete wasting away of a part of the body. Causes include lack of exercise and/or use”
PRESCRIPTION :: DRILL, BABY. DRILL.
SMELL :: GOLD IMAGE
Consistent, repeatable builds encourage fast deployment and consistently identical systems without the burden of managing images
A repeatable build improves product quality, reduces the mundane tasks and minimizes dependencies on key people.
build cycle
Softwarepackages
PRESCRIPTION :: USE CONTINUOUS PROVISIONING
SMELL :: TEETERING STACK
PRESCRIPTION :: CONTAINER PARTITIONING
Cluster multiple physical servers to gain failover capabilities
source: “Automated failover and recovery of virtualized guests in Advanced Platform”, Rob Kenna, Redhat Magazine
Share resources across physical servers
Virtualization can reduce cost while also improving flexibility…
OVERVIEW
– THE VISIBLE RAT’S NEST
– THE OBFUSCATED RAT’S NEST
INFRASTRUCTURE SMELLS
– CONFIGURATION DRIFT
– SYSTEMS ENTROPY
– STAFFING ATROPHY
– GOLD IMAGE
– SOFTWARE STACKS
KEY TOOLS
– SYSTEM CONFIGURATION TOOLS
– OS INSTALLATION TOOLS
– VIRTUALIZATION TOOLS
SUMMARY
SYSTEM CONFIGURATION TOOLS
And many more…
Puppet
http://www.puppetlabs.com
Chef
http://www.opscode.com/
Cfengine
http://www.cfengine.org/
OS INSTALLATION TOOLS
Cobbler
https://fedorahosted.org/cobbler/
Spacewalk
http://spacewalk.redhat.com/
And many more…
VIRTUALIZATION TOOLS
And many more…
OVERVIEW
– THE VISIBLE RAT’S NEST
– THE OBFUSCATED RAT’S NEST
INFRASTRUCTURE SMELLS
– CONFIGURATION DRIFT
– SYSTEMS ENTROPY
– STAFFING ATROPHY
– GOLD IMAGE
– SOFTWARE STACKS
KEY TOOLS
– SYSTEM CONFIGURATION TOOLS
– OS INSTALLATION TOOLS
– VIRTUALIZATION TOOLS
SUMMARY
• SEPARATE CONCERNS.
• DRILL, BABY. DRILL.
• ALL THAT GLITTERS IS NOT GOLD.
• PARTITION CONTAINERS.
• AUTOMATE. AUTOMATE. AUTOMATE.
Isaac ChristoffersenColloquiumContributing Partner, Open Source Solutions email: [email protected]: @colloquiumco
web: http://www.colloquium.cotwitter: @colloquiumcoidentica: @colloquiumco
