This document provides an introduction to DevOps. It discusses how DevOps aims to break down silos between development and operations teams through frictionless collaboration, shared culture and processes. It emphasizes that DevOps is about bringing people together, not just tools. Key aspects of DevOps culture include collaboration, communication, sharing, trust and respect between teams. Processes discussed include continuous delivery, version control, test-driven operations and automation. Popular tools that support DevOps goals are also mentioned.

1. Spaghetti
Devops
Just another introduction to DevOps
Quotes, ideas and graphics shamelessly stolen from various sources
Agile Days, 19/11/2011 Rome

2. DEV vs OPS

3. The IT silos
• Development
• Operations
• QA
DevOps is about
frictionless collaboration

4. Converging Trends
• Web 2.0
• Cloud and Virtualization
• Agile Operations
• Lean Startups
• Velocity Conf

5. The Google Index 10 Nov 2011
• Results on Google.com
• developer: 770,000,000
• sysadmin: 7,160,000
• sysadm: 866,000
• devops: 814,000

6. Job trends
(indeed.com)

7. DevOps Reference
• Patrick Debois site • Newsletter:
http://www.jedi.be/ http://devopsweekly.com/
• DevOps Cafe • DevOps Days
http://devopscafe.org/ http://devopsdays.org/
• News aggregator: • Camp DevOps
http://planetdevops.net/ http://campdevops.com/

9. “It’s all about people!”
“It’s not about the tools, it’s about the culture!”
“It's not about tools. It's the people”
“The tools make the processes!”
“Process+People >> Culture”
“It's all about putting the fun back into IT!”
“It all about process!”
“Tools+People >> Process”
“People+Culture >> Process”
“It all about tools!”
“It’s not about tools. It’s about change”

10. People
• Developers
• Sysadmins
• QA Testers
• Network / Database /
Storage administrators
• Product / Sales / Marketing
• Customers
It’s about WHO and HOW

11. Culture
• Collaboration
• Communication
• Sharing
• Trust
• Respect
• Fail management

12. Share Culture
• Tech talks / Standups / Hackatons ...
• Production info exposed to developers
• Share common metrics
• Job swaps / Mixed teams
• Explain your work
• Care about others’ work

13. Fail Culture
• “Things may break. Accept it.”
• “Fail early, blame slowly.”
• “Learn from mistakes, and everything else”
• “Fail together”
• “Responsibility in the right place”

14. Processes
• Continuous delivery
• Version control
• Test driven operations
Automation
Agile methodologies

15. Tools
• Configuration Management
• Logs intelligence
• Monitoring
• Trending & Data
Visualization
• Tests and Continuous
Integration
• (Continuous) Deployment

16. Configuration
Management
Puppet
Chef
CFEngine
Bcfg2
Infrastructure as a Code:
Versioning
Change History
Rapid Provisioning
Setup consistency
Scalability and automation

17. Logs intelligence
Logstash
Graylog2
Splunk
Logs management & analysis
Aggregation and summarization
Correlation of events
Security and compliance

18. Monitoring
• Nagios / Icinga
Zabbix
Zenoss
• Monit
Runit
Upstart
• Monitoring sucks
Patterns for new approaches to monitoring

19. Trending and data
visualization
Cacti
Munin
Collectd
Ganglia
Graphite
Visually express data and metrics
Instant correlation of events
Capacity planning

20. Continuous
Integration
Jenkins / Hudson
Cruise Control
Apache Continuum
Code quality improvement
Earlier detection of bugs
Quicker paths to production
Code workflow automation

21. (Continuous)
Application Deployment
Control Tier
Capistrano
RunDeck
Fabric
Puppi ;-)
Standardization reduces human error
Good deployments have good checks
Continuous or not, it has to be simple and quick
Rollback is a requirement, not an option...
... still someone prefers to think about Rollforward.

22. What about
Spaghetti?

23. The Google Index 10 Nov 2011
• Results on Google.com • Results on Google.it
• developer: 770,000,000 • programmatore: 7.260.000
• sysadmin: 7,160,000 • sistemista: 1.180.000
• sysadm: 866,000 • devops: 1.550
• devops: 814,000

24. Is there an italian way
for DevOps?
probably not ... ... but let me throw in few personal hints:
Consider a step by step approach
It’s not all white or black,
explore the nuances of grey.
Cope with cultural resistance,
be perseverant.
There is much to learn also from “old dogs”
Earn respect with facts
Adapt to contingency

25. DevOps .it
• Google Group
groups.google.com/devops-italia
(Milan DevOps Meetups)
• Facebook Group
www.facebook.com/groups/devops.italia

26. Questions?