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Kubernetes at scale on remote sites

Niklas Wik
January 23, 2019
Technology
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Kubernetes at scale on remote sites

Niklas Wik

January 23, 2019
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Transcript

  1. KUBERNETES AT SCALE ON KUBERNETES AT SCALE ON REMOTE SITES

    REMOTE SITES NIKLAS WIK NIKLAS WIK NOKIA NOKIA

  2. OVERVIEW OVERVIEW

  3. DEFINITIONS DEFINITIONS Edge cloud Limited HW (1-3 nodes) Limited access

    Edge behind NAT

  4. EDGE CLOUD EDGE CLOUD

  5. EDGE CLOUD EDGE CLOUD

  6. None

  7. ARCHITECTURE ARCHITECTURE Technologies #clusters Cloud k8s 10-20 Edge k8s 100-10000

  8. INSTALL PROBLEM INSTALL PROBLEM How to install 100-1000 of edge

    clouds? OS level Core OS Self hosted control plane

  9. INSTALL SOLUTION V1 INSTALL SOLUTION V1

  10. PROBLEMS?! PROBLEMS?! Docker-compose too hard for non technical people. Networking

    setup knowledge.

  11. INSTALL SOLUTION V2. INSTALL SOLUTION V2.

  12. PROBLEMS?! PROBLEMS?! Lifecycle? Certificates?

  13. CERTIFICATES CERTIFICATES Certificate expire Rotation? Etcd certificates rotation?

  14. LIFECYCLE LIFECYCLE Recreate! Save application state to disk PrePull the

    new components Recreate full kubernetes (and Etcd) install automatically Downtime few minutes.

  15. FUTURE LIFECYCLE? FUTURE LIFECYCLE? for lifecycle Cluster-API Etcdadm

  16. SOFTWARE MANAGEMENT SOFTWARE MANAGEMENT

  17. ref

  18. V0.1 (BRUTE FORCE) V0.1 (BRUTE FORCE)

  19. V1.0 (MANUAL OPS) V1.0 (MANUAL OPS)

  20. V2.0 (GITOPS) V2.0 (GITOPS) GitOps DAC GitOps operator

  21. LEARNINGS LEARNINGS Use operator pattern for Apps. Try and throw

    away. Use GitOps at scale

  22. FIND OUT MORE FIND OUT MORE NDAC https://www.linkedin.com/in/niklas-wik- 138b1318/ https://github.com/salkin