devops

http://www.flickr.com/photos/estherase/29903995/gareth rushgrove | morethanseven.net

DevopsA tale of developers and operations

barcamb3 24th April 2010

http://www.flickr.com/photos/booleansplit/2376359338/sizes/l/


Gareth Rushgrove

gareth rushgrove | morethanseven.net

morethanseven.net

http://opencoffee.ning.com


We Have A Problem

gareth rushgrove | morethanseven.net http://www.flickr.com/photos/estherase/30344569/



Developers


It works on my machine!Every developer ever

“

Sysadmins


Deployment


Development builds an application, the new hotness which promises customers all the whizz-bang features and will make the company millions...

Parable from http://www.kartar.net/2010/02/what-devops-means-to-me/

http://www.kartar.net/2010/02/what-devops-means-to-me/

http://www.kartar.net/2010/02/what-devops-means-to-me/

Deployment


...It is built using cutting edge technology and a brand new platform and it has got to be delivered right now. Development cuts code like crazy and gets the product ready for market ahead of schedule and dash off to the pub for the wrap party

Deployment


“The wonder application won’t run on our infrastructure because {it’s too old, it doesn’t have capacity, we don’t support that version}

The sysadmin

Deployment


“The architecture of the application doesn’t match our { storage, network, deployment, security } model

The sysadmin

Deployment


“We weren’t consulted about the { reporting, security, monitoring, backup, provisioning } and it can’t be “productionised”.

The sysadmin

- Metrics collection

- Monitoring and thresholds

- Load-feedback behaviour

- Instrumentation

- Fault tolerance

Not just deployment


http://www.kitchensoap.com/2009/12/12/devops-cooperation-doesnt-just-happen-with-deployment/

http://code.macournoyer.com/thin/




Do We Have A Solution?




Devops


John Allspaw

“Dev/Ops is what some people are calling the renewed cross-interest in development and operations collaboration

Tools, lots of tools




Server Provisioning with Puppet


puppetlabs.com



Puppet Class Example

class baseclass { $packagelist = ["sudo", "openssh-server""] package { $packagelist: ensure => installed } service { sshd: name => "ssh", enable => true, ensure => running }}

gareth rushgrove | morethanseven.netgareth rushgrove | morethanseven.net

Puppet Node Example

gareth rushgrove | morethanseven.netgareth rushgrove | morethanseven.net

node 'example.com' inherits basenode { $packagelist = ["nginx"] package { $packagelist: ensure => installed } service { "nginx": ensure => running, require => Package["nginx"] }}

Cucumber Nagios


auxesis.github.com/cucumber-nagios/



Feature: google.co.uk To broaden their knowledge A user should be able To search for things Scenario: Searching for things Given I visit "http://www.google.co.uk" When I fill in "q" with "wikipedia" And I press "Google Search" Then I should see "www.wikipedia.org"

Cucumber DSL Example


http://www.google.com


http://www.wikipedia.org


Feature: google.co.uk To broaden their knowledge A user should be able To search for things Scenario: Searching for things Given I visit "http://www.google.co.uk" When I fill in "q" with "wikipedia" And I press "Google Search" Then I should see "www.wikipedia.org"

1 scenario (1 failed)4 steps (1 failed, 2 skipped, 1 passed)0m0.332s

Cucumber Results Example






- Processes

- Communications

- Automation

Not just tools




Lots of reading


In Summary


Jesse Robins

“Devs who are Ops, who like Ops to be Devs, that do Ops like they're Devs, that Dev like they're Ops, always should be people you really love

http://twitter.com/jesserobbins/status/11169019112



Reading


- Patrick Debois - http://www.jedi.be/

- Damon Edwards - http://dev2ops.org/

- James Turnbull - http://www.kartar.net

- John Allspaw - http://www.kitchensoap.com/



http://dev2ops.org

http://dev2ops.org

http://www.kartar.net

http://www.kartar.net

http://github.com/defunkt/unicorn/

http://github.com/defunkt/unicorn/

Questions?


http://flickr.com/photos/psd/102332391/

http://flickr.com/photos/psd/102332391/

devops

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