Definition of DevOps
DevOps
is a set of software development practices that intend to shorten the
systems development life cycle while delivering features, fixes, and
updates frequently in close alignment with business objectives. (Wikipedia)
Where did this term come from?
Len
Bass, Ingo Weber, and Liming Zhu—three computer science researchers from the
CSIRO and the Software Engineering Institute—suggested defining DevOps as
"a set of practices intended to reduce the time between committing a
change to a system and the change being placed into normal production, while
ensuring high quality"
What is DevOps’ scope?
Is it
just limited to being:
1) About
tools, CI and CD - No
2) About
Dev and Ops teams (and other teams as required) working together - No
So
DevOps =
1) CI+CD
+
2) Dev
and Ops collaboration +
3) XYZ
It
covers anything and everything done to enable faster delivery to production
while maintaining the desired level of quality.
So..What DevOps is, and what it is
not?
DevOps
is not
- A process or
- A technology or
- A standard
DevOps is
A mix of
having the right culture and tools
How is DevOps related to Agile?
DevOps can be interpreted as an outgrowth of Agile. DevOps is
simply extending Agile principles beyond the boundaries of the code to the
entire delivered service.
|
|
Agile (applied to) Development
|
DevOps
|
|
Frequency of Delivery
|
Potentially
shippable software at the end of every Sprint
|
Potentially
shippable software after every ‘integration’ (any frequency possible , even
sooner than a Sprint if team is doing Continuous Integration, Continuous
testing)
|
|
Release Cycles/ Development Sprints
|
Smaller
release cycles
|
Smaller
release cycles with immediate feedback (through continuous monitoring
tools)
|
|
Processes/ Practices
|
Involves
practices such as Scrum, XP, Kanban, lean Development
|
Involves
‘technical practices’ such as CI, CD, CT, Continuous Monitoring etc.
|
|
Agility Scope
|
Agility
in Development
|
Agility
in Development, Testing, Deployment and
Operations
|
|
Bridging gaps
|
Bridging
gaps between customer and dev team (developers, testers)
|
Bridging
gaps between dev team (developers, testers) and Operations
(release/deployment engineers, Operations support engineers)
|
|
Key concepts
|
Maximizing
customer Value, shorter time to market
|
|
“DevOps is simply an extension of the
Agile transformation.”
