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Infrastructure Engineering. Bryan McLellan http:// loftninjas.org [email protected] Systems Administrator Widemile. Landing Page Optimization (LPO) or Proprietary Testing, Optimization and Predictive Analytics Technology (smart people). Partner Program (Recently Launched).

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Infrastructure Engineering

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Infrastructure Engineering

Bryan McLellan

http:// loftninjas.org

[email protected]

Systems Administrator

Widemile


  • Landing Page Optimization (LPO) or

  • Proprietary Testing, Optimization and Predictive Analytics Technology

  • (smart people)

Partner Program (Recently Launched)

Full Service Clients


The secret goal of an SA

Never having to say you’re sorry…

Or never having to do something twice

Once is a problem worth solving

Twice and you’re a monkey

Objective:

Systems/Network engineering position that will capitalize on my adaptive technical skills to provide scalable solutions to unique problems

http://www.flickr.com/photos/junewess/2111679056/


Chaining Tools & Frameworks

Puppet, Facter, Capistrano & iClassify

(Open Source Software)

http://xkcd.com/444/


Automation

  • Building Systems

  • Installing the OS

  • Installing software

  • Configuring Software

  • Maintenance

  • Monitoring

  • Documentation

  • Disaster Recovery

  • Virtualization

  • PXE Boot

  • Package management

  • Puppet

  • iClassify

  • Capistrano

  • Nagios/Munin


Life at Widemile

Build a new server

cap -S recipe=vmware \

-S host=vmware06 \

-S hostname="syslog01.prod.widemile.com" \

-S network=prod \

build

Capistrano recipe (ruby)

Builds a vmwarevmxconfigfile including virtual network interfaces (erb)

Creates virtual disk

Grabs generated MAC address, feeds it to the tftp server.

Starts VM

VM PXE boots, installs debian automatically (preseed)

Grabs IP address from DHCP logs so you know where to ssh in 10 minutes


Life at Widemile

Puppify

cap -S recipe=debian_client \

-S client=syslog01 \

-S master=prod-ops01 \

build

Capistrano recipe (ruby)

Configures sources.list and bits needed to get the truck rolling

Installs puppet/facter/icagent (iClassify)

Generates and signs puppet keys

Runs puppet


Life at Widemile

Tagging:


Life at Widemile

Go for a bike ride and enjoy refreshing beverages in the park

http://www.flickr.com/photos/mattw/2655550820/


facter

Rubys scripts collect data, “facts” are available as iClassify attributes and puppet variables


puppet


munin

28 lines without comments, 241 lines without comments once deployed


http://loftninjas.org

“Parallel to the ‘Developer’ tribe in most organizations, often with a semi-antagonistic mutual dependence, there was always another tribe: ‘Sysadmin’. When Developers and Sysadmins got together, it sometimes felt like the dwarfs and high elves forced to work together by necessity. (I’ll let you workout which is which.)”

http://stochasticresonance.wordpress.com


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