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Beyhan Veli, SAPJuly 08, 2019

Agile Software Engineering and Pair Programming at Cloud Foundry

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Introduction

Pair programming

Meetings

Challenges

Agenda

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INTRODUCTION

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Infrastructure as a Service (IaaS)

Platform as a Service (PaaS)

Software as s Servie (SaaS)

Cloud Foundry§ PaaS§ Application development made easy§ Defines service APIs

Cloud Foundry

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Release engineering

Deployment to supported IaaS

Software lifecycle management§ Monitoring§ Failure recovery

BOSH

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Nonprofit organization

Intellectual property

Cloud Foundry adoption§ Conferences§ Trainings§ Certification

Contributors

Cloud standards

Cloud Foundry Foundation

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Cloud Foundry Dojo

Remote paring interview

Six weeks pairing§ Dedicated team§ With committers

Committer

One year commitment

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1 PO + 8 Developers

DevOps

• BOSH committer

• SAP internal development

• BOSH as a service for SAP

BOSH Team

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WHY PAIR PROGRAMMING

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Productivity

https://collaboration.csc.ncsu.edu/laurie/Papers/XPSardinia.PDF

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Quality

https://collaboration.csc.ncsu.edu/laurie/Papers/XPSardinia.PDF

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Quality

https://collaboration.csc.ncsu.edu/laurie/Papers/XPSardinia.PDF

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Knowledge Distribution and Code Ownership

Expert in A

Expert in B

Expert in C

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Knowledge Distribution and Code Ownership

Expert in A

Expert in B

Expert in C

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”I feel productive from the first day”

Onboarding of New Colleagues

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Vacation

Test Driven Development

Satisfaction

Increased focus

Pairing Advantages

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How

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All day long§ Mails§ Daily§ Pairing§ Lunch§ Pairing§ Mails

Skip pairing

Explore new technology

No code review

Pair Programming

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Two monitors and keyboards§ Mirrored monitors

Non-personalized equipment§ Except keyboard and mouse

Same tools setup on each workstation

No dedicated workstation for a pair

Pair Programming Setup

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Screen sharing§ MacOS screen sharing, Slack or Zoom

Console sharing§ tmux

Discussions over speaker or conference call

Virtual team board

Remote Pair Programming

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Every day

Keep story context

Automated

Pair roles assigned§ Interrupt, build, community

Rotation

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Interrupt pair§ Operation§ Continues integration pipelines§ Community questions

Weekly rotation

Focus

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MEETINGS

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Weekly

Story presentation and discussion

Estimation

No detailed task planning

Planning

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Scrum questions

Helps/Interestings

Pairs generation

Daily

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Pairs Generation

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Pairs Generation

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Pairs Generation

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Weekly

Good/Neutral/Bad

Action Items

Retro

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Rotation spreads the knowledge

No need for the Product owner

Product owner takes care of stakeholders

No Review

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Challenges

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Everyone in team enjoys pairing

Working in pairs is different

Give up on your special role

Give up on your special setup

Plan your time better

Challenges

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Questions?

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Beyhan VeliTwitter: @beyhan

Thank you.

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Cloud Foundry Foundation§ https://www.cloudfoundry.org/

Cloud Foundry projects§ https://github.com/cloudfoundry

Pairing study§ https://collaboration.csc.ncsu.edu/laurie/Papers/XPSardinia.PDF

Pair distribution app§ https://github.com/SAP/pair-distribution-app

Links