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Kubernetes for the Mesos User

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Avatar for Brian Hicks Brian Hicks
July 12, 2016
Programming
130
1

Kubernetes for the Mesos User

Talk for the Denver Mesos User Group

Avatar for Brian Hicks

Brian Hicks

July 12, 2016

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Transcript

  1. Kubernetes for the Mesos User Denver Mesos Users Group, July

    12 2016 1

  2. Brian Hicks [email protected] @brianhicks Denver Mesos Users Group, July 12

    2016 2

  3. Denver Mesos Users Group, July 12 2016 3

  4. Demo! Denver Mesos Users Group, July 12 2016 4

  5. Kubernetes? Kubernetes is an open-source platform for automating deployment, scaling,

    and operations of application containers across clusters of hosts. 4 kubernetes.io (emphasis mine) Denver Mesos Users Group, July 12 2016 5

  6. Web Interface Denver Mesos Users Group, July 12 2016 6

  7. Denver Mesos Users Group, July 12 2016 7

  8. Denver Mesos Users Group, July 12 2016 8

  9. Scheduling Denver Mesos Users Group, July 12 2016 9

  10. Mesos 2-level scheduler, based on resources 1. Workers offer resources

    to masters 2. Masters offer resources to frameworks 3. Frameworks accept resource offers 4. Work gets scheduled Denver Mesos Users Group, July 12 2016 10

  11. Kubernetes Multi-step constraint-based scheduler 1. Find "suitable" nodes for pod

    2. Rank best nodes - for example, by least scheduled 3. Work gets scheduled Denver Mesos Users Group, July 12 2016 11

  12. Application Definition Denver Mesos Users Group, July 12 2016 12

  13. Marathon { "id": "basic-0", "cmd": "while [ true ] ;

    do echo 'Hello Marathon' ; sleep 5 ; done", "cpus": 0.1, "mem": 10.0, "instances": 1 } Denver Mesos Users Group, July 12 2016 13

  14. Kubernetes --- apiVersion: extensions/v1beta1 kind: Deployment metadata: name: basic-0 spec:

    replicas: 1 template: metadata: labels: app: basic-0 spec: containers: - name: basic-0 image: docker.io/gliderlabs/alpine:3.2 resources: limits: cpu: 100m memory: 10Mi args: - /bin/sh - -c - while [ true ] ; do echo Hello Kubernetes ; sleep 5 ; done Denver Mesos Users Group, July 12 2016 14

  15. Kubernetes (CLI) kubectl run \ basic-0 \ --image=docker.io/gliderlabs/alpine:3.2 \ --limits="cpu=100m,memory=10Mi"

    \ -- /bin/sh -c 'while [ true ] ; do echo Hello Kubernetes ; sleep 5 ; done' Denver Mesos Users Group, July 12 2016 15

  16. When K8s, when Mesos? Denver Mesos Users Group, July 12

    2016 16

  17. Fault Tolerance: Tie! Denver Mesos Users Group, July 12 2016

    17

  18. Data Frameworks: Mesos Denver Mesos Users Group, July 12 2016

    18

  19. 12-factor Apps: K8s Denver Mesos Users Group, July 12 2016

    19

  20. UI: Mesos Denver Mesos Users Group, July 12 2016 20

  21. CLI: K8s Denver Mesos Users Group, July 12 2016 21

  22. IP-Per-Container: K8s Denver Mesos Users Group, July 12 2016 22

  23. Multitenancy: K8s Denver Mesos Users Group, July 12 2016 23

  24. Questions? Denver Mesos Users Group, July 12 2016 24