Shift Remote: DevOps: An (Un)expected Journey - Zeljko Margeta (RBA)

A vision of what DevOps should be, a tale of how we got to where we are, and where we would like to go in the future.

Technology

About Me
Željko Margeta
Java Developer at Raiffeisenbank Austria d.d.
Worked in Sberbank Croatia and Infinum
Open source enthusiast, Java geek and all around
computer nerd

What is
Devops?
"Devops is a set of practices that combines
software development (Dev) and IT operations
(Ops).
It aims to shorten the systems development
life cycle and provide continuous delivery with
high software quality."
Wikipedia

What is
Devops?
People working together on achieving a
common goal, everything else is just
implementation detail.

Dark Ages
• Compartmentalization and silos
• Rigid regulatory demands
• "We have always done it this way"
• Unnecessary bureaucracy
• Procedures that don't keep up with the
technology

Renaissance
• Project focused
• Specialised teams
• Devops and agile corporate culture
• Automation over manual work
• Continuous integration and delivery

Prerequisites
Automated tests
• Unit tests
• Integration tests
• Acceptance tests
Metrics and logs
• Meaningfull metrics
• Tracing
• Observability

The Future
Reduce dependency on Jenkins
• Extract functionality
• Build containers
• Allow easier integration for new
requirements
Split CI and CD into separate pipelines
• Integration via image push
Deploy features not artefacts
• Trunk based development
• Each commit can end up on production
• Isolation using feature flags

The Future
"Production is my favorite place on the
internet. I LOVE production. YOU should love
production. You should go as early, and often,
as possible. Bring the kids, the whole family.
The weather is amazing! It's the happiest place
on earth!"
Josh Long

The Shift Lift scope has broadened during the Age of the Customer. As well as testing it brings other activities forward in the software development lifecycle to enable faster release cycles. For larger enterprises this can be a big cultural challenge. In this talk we will explore the new Shift Left and how you can get business stakeholder buy-in to set up your team for success and gain a huge return on the upfront investment.

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Manual Monitoring Slows Deployment and Introduces Risk How often do you update your applications? “We deploy multiple times per day” seems to be the new badge of honor for DevOps. But what you don’t often hear about are the problems caused by process acceleration as a result of continuous integration and continuous deployment (CI/CD). Rapid introduction of performance problems and errors Rapid introduction of new endpoints causing monitoring issues Lengthy root cause analysis as number of services expand When implementing CI/CD, ANY manual intervention slows down the entire pipeline. You can’t achieve complete CI/CD without automating your monitoring processes (just like you did for integration, testing, and deployment).

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Compuware and CloudBees demonstrate how you can apply modern DevOps practices to your mainframe applications using Compuware ISPW and Topaz for Total Test with CloudBees Jenkins. Compuware Product Manager Steve Kansa and CloudBees DevOps Evangelist Brian Dawson will: - Position the mainframe as part of your DevOps and CI/CD journey - Explain how Jenkins automates mainframe source code management and testing - Demo a CI/CD workflow on a COBOL application Watch the full presentation on YouTube: https://www.youtube.com/watch?v=x4MWrPy3bKM.

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