From Silos to DevOps to Platform Engineering: embracing GitOps and going behind the hype

A presentation at JUG Summer Camp in September 2024 in La Rochelle, France by Horacio Gonzalez

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From Silos to DevOps to Platform Engineering Embracing GitOps and going behind the hype Speaker : Horacio Gonzalez - @LostInBrittany 1

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Horacio Gonzalez @LostInBrittany Spaniard Lost in Brittany

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Adding layers of shiny complexity Last 30 years in software development

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From write-compile-exec to Kubernetes

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From write-compile-exec to Kubernetes

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If I were a student now, I would feel scared

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Platform Engineering to the rescue Empowering developers while reducing complexity

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IT in the 90s Once upon a time…

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In a time almost forgotten When even internet was young…

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When Windows 95 was the cutting edge And a 100 Mb disk was huge…

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Big companies still used mainframes Bigger, fancier, but still the same old IBM

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Bare-metal based IT reigned Control, reliability, security… But cost, rigidity, logistics…

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Applying the industrial model Trying to shoehorn IT into a model where it doesn’t fit

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Walls & Silos And procedures, and hierarchy, and corporate politics

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Why are we managing IT like factories? Because we didn’t know otherwise?

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Tooling evolves CVS, Ant and (Leeeroy) Jenkins

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Old school procedures

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Tooling empowering changes Theory existed since 1999 But without the right tooling…

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Source control tools Better than copying and renaming folders…

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Dependency management & build Better than grabbing each dependency in their website and running javac by hand…

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Unit testing and continuous integration Hudson CI If Testing is Doubting, let’s doubt automatically

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Monitoring tools No more spending nights looking at a status screen

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So many more possibilities… So much more complexity!

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XP, agility and DevOps Buzzwords that changed the IT

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Extreme Programming

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Manifesto for Agile Software Development

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Breaching walks, breaking down silos

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The business of Agility The Dark Side rises

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Agile Tooling

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Back to industrial practices ?

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DevOps: breaking Dev and Ops Silos

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DevOps is a reaction to the wall of confusion Making the different stakeholders to work together in sync

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DevOps anti patterns More in DevOps Topologies site

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DevOps also has another Dark Side WTF is a DevOps Engineer? And a DevSecOps? A DevMlOps? A DevAiDataSecOps? A Dev*Ops?

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So we have Cults of Agility and Dev*Ops And so much more complexity!

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Enter the Cloud Renting server time in other’s people infra

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From virtualisation to the cloud How to use the infrastructure at its full capacity

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Cloud demands automation

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It changes the way how IT works And it demands a mentality change

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Empowering developers Infrastructure is only a click away

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Distributed is the new black Cloud Native architectures and services

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Sysadmins who code Creating tools: automation, monitoring, observability…

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New roles appear: SRE WTF is a System Reliability Engineer?

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250 cloud products only in this provider… And so much more complexity!

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Declarative Infrastructure The intern metaphor

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Containers make dev life easier

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Less simple if you must operate them Like in a production context

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And what about microservices? Are you sure you want to operate them by hand?

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And what about microservices? Are you sure you want to operate them by hand?

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Kubernetes: a full orchestrator

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Kubernetes - Desired State Management

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Infrastructure as Code

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Containers? Pods? Ansible? Terraform? So much more complexity!

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Becoming a developer in 2024 Do I need to know all that?

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So many things to learn…

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So many options …

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Managing the self-service commodity

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Shift left and Cognitive Load

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Platform Engineering to the rescue Without adding more complexity?

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What’s Platform Engineering? Platform engineering is the discipline of designing and building toolchains and workflows that enable self-service capabilities for software engineering organizations in the cloud-native era. Platform engineers provide an integrated product most often referred to as an “Internal Developer Platform” covering the operational necessities of the entire lifecycle of an application. Lucca Galante

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A fancy name for something already there Most companies already have some kind of platform Often homemade…

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The purpose of Platform Engineering Empowering developers while reducing complexity

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But how can we create them?

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GitOps

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What is GitOps? Git is the single source of truth Treat everything as code Operations through Git workflows

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Benefits of GitOps

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Team Topologies It’s not only a tool, but an organisation

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Team Topologies https://teamtopologies.com/

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Team Topologies https://teamtopologies.com/

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Team Topologies https://teamtopologies.com/

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Principles of Platform Engineering To make it work

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Paving golden paths Platform engineering is about binding process and tools into a paved road. Rather than letting everybody operate everything and having to understand the entire toolchain to do so, platform engineers provide the glue to bind everything into a consistent self-service experience.

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Clear mission and role

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Platform as a Product

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Focus on common problems

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Glue is valuable

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Don’t reinvent the wheel

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An IDP over Kubernetes What could I use?

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Don’t put everything into Kubernetes

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Operators simplify Kubernetes integration

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Lots of available operators

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Hey JUG Summer Camp, operators ❤ Java

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So you have a bunch of operators… Too many options again…

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Use a Platform Engineering framework

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Set-up a robust CI/CD/GitOps pipeline

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An IDP without Kubernetes There is a life outside K8s…

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What if developers only developed?

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PaaS as cornerstone of a dev-centered IDP

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Clever Cloud

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Some Links to go further - There Is No Such Thing as a DevOps Engineer DevOps Topologies What is Platform Engineering Team Topologies Kratix Aiven Clever Cloud