kubecon25/content/day0/12_many-clusters.md
Nicolai Ort 8dbdfd938f
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docs(day0): New talk
2025-04-01 15:53:27 +02:00

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---
title: "PErfomance preseverance: Taming 1000 kubernetes clusters"
weight: 12
tags:
- platform
- cloudnativecon
---
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## History
- They started with upstream kubernetes - the hard way
- Env grew to over 200 prod apps
- Pains: Single Cluster, single point of failure and complexity
- What worked: Dev adoption and autonomy, no vendor
## Challenges
> Based on stakeholder expectations
- One tenant per cluster -> Over 1000 Clusters
- Release management
- Small team (3 Engineers)
## Guiding principles
- Platform as a product
- Stability: trust
- Standardization -> Scalability and inter team collab
- Day 2 support
- Dogfooding
## Tenancy
- One cluster per product
- Own CLI, devs like cli
- Custom operator and crds
## Stack
- Keopsctl? Pretty much their own cluster operator
- A Simple Cluster CRD
## Migration
1. Build trust in platform
2. Support with docs, oboarding, q&a
3. Co-create with devs while keeping an eye on day2 -> Feature-Flag based rollout