DevOps | Ulf Månsson | LTG-25

DevOpsUlf Månsson  ­  @ulfmansson  ­  Recorded Future AB

Recorded Future - Threat Intelligence

Cambridge, MA (HQ)Washington, DCGöteborg, Sweden

What is DevOps?

What about?

● Delivers

● Hundreds of deployment per week

● Early return of investment of development

● Agile all over (What is the value of only agile development?)

● Uptime

● Quality

● Satisfaction and happiness

Deployed is done done

The problem

Break the silos

DevOps

● It’s a philosophy and set of practices that guides how your engineering and IT teams work

● DevOps is a way of working that emphasizes collaboration, open communication, and the seamless sharing of ideas and code

● Good DevOps work requires testing, iterating and even breaking things. That needs to happen quickly, without friction and, importantly, without blame..

Source http://www.pagerduty.com/blog/dev-ops-non-engineers

CAMS by John Willis

● Culture

● Automation

● Measurement

● Sharing

Culture

● Openness

● Celebrate success and failure

● Not the normal blame game culture

● Be part of business

● Work together, common goals

Automation

● Once you understand your culture.

● It's about automate processes

● Reduce human errors

● Poka-yoke – failure proof

● Tools for release management, provisioning, configuration management, systems integration, monitoring and control, and orchestration become important pieces in building a Devops fabric..

Continuous delivery

Continuous delivery treats the commonplace notion of a deployment pipeline as a lean Poka-Yoke: a set of validations through which a piece of software must pass on its way to release

It is important to understand that any code commit may be released to customers at any point.

Patterns such as feature toggles can be very useful for committing code early which is not yet ready for use by end users

Source Wikipedia

Measurement

● If you can’t measure, you can’t improve.

● A successful Devops implementation will measure everything it can as often as it can…

– performance metrics

– process metrics

Sharing

● Sharing is the loopback in the CAMS cycle.

● Creating a culture where people share ideas and problems is critical.

● Another interesting motivation in the Devops movement is the way sharing Devops success stories helps others.

● First, it attracts talent, and second, there is a belief that by exposing ideas you can create a great open feedback that in the end helps them improve.

Architecture

● Micro services

● Retries and fail over

● The code need to handle that other services doesn't work

● Handling old and new message formats/APIs

● Feature toggles

devops is a movement