Kubernetes Anywhere

Kubernetes Anywhere is a coherent, platform-agnostic way to provision Kubernetes clusters. Presented at the Berlin Kubernetes Meetup, 6 April 2016. https://github.com/weaveworks/kubernetes-anywhere

Transcript

1. weaveworks-
   Kubernetes Anywhere
   Coherent, platform-agnostic provisioning
   

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2. weaveworks-
   @mfdii
   

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3. weaveworks-
   @mfdii
   

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4. weaveworks-
   kube-apiserver
   

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5. weaveworks-
   kube-apiserver
   etcd
   

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6. weaveworks-
   kube-controller-manager
   kube-apiserver
   etcd
   

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7. weaveworks-
   kube-controller-manager
   kube-scheduler
   kube-apiserver
   etcd
   

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8. weaveworks-
   kube-controller-manager
   kube-scheduler
   kube-apiserver
   kube-proxy
   kubelet
   etcd
   

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9. weaveworks-
   kube-controller-manager
   kube-scheduler
   kube-apiserver
   kube-proxy
   kubelet
   etcd
   

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10. weaveworks-
    kube-controller-manager
    kube-scheduler
    kube-apiserver
    kube-proxy
    kubelet
    etcd
    

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11. weaveworks-
    kubelet
    kube-proxy
    kube-controller-manager
    kube-scheduler
    kube-apiserver
    kube-proxy
    kubelet
    etcd
    

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12. weaveworks-
    kubelet
    kube-proxy
    kube-controller-manager
    kube-scheduler
    kube-apiserver
    kube-proxy
    kubelet
    etcd
    

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13. weaveworks-
    etcd
    etcd
    kubelet
    kube-proxy
    kube-controller-manager
    kube-scheduler
    kube-apiserver
    kube-proxy
    kubelet
    etcd
    

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14. weaveworks-
    etcd
    etcd
    kubelet
    kube-proxy
    kube-controller-manager
    kube-scheduler
    kube-apiserver
    kube-proxy
    kubelet
    etcd
    etcdN.cluster.internal
    k0.cluster.internal
    kN.cluster.internal
    

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15. weaveworks-
    Deployment choices
    • Bare metal?
    • Cloud provider — DigitalOcean, Linode?
    • Cloud platform — AWS, GCE, Azure?
    • Fully hosted — GKE, Deis?
    

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16. weaveworks-
    Deployment choices
    • Container OS — CoreOS, Atomic, Snappy?
    • Automation tools — Puppet, Chef, Salt, Ansible?
    

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17. weaveworks-
    Deployment choices
    • Network — base, overlay, IPVLAN? L2, L3?
    • Storage — platform-provided, NFS, Ceph, Flocker, Quobyte?
    • Monitoring — host-only, exception tracking, instrumenting?
    

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18. weaveworks-
    Deployment choices
    • Databases — hosted, containerized, separate deployment?
    • Cluster management — live upgrades, rebuild?
    • Access control?
    

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19. weaveworks-
    Deployment choices
    • Artifact repository — fileserver, internal registry, hosted registry?
    • Integration testing — none, Jenkins, Circle?
    • Deployment — ad-hoc, version-tracked, CD pipeline?
    

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20. weaveworks-
    @mfdii
    

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21. weaveworks-
    Kubernetes interacts with it all
    • Some is lightweight e.g. monitoring (cAdvisor, Prometheus)
    • Some is deeply coupled e.g. networking (Flannel, Weave, Calico)
    • Some sits in between e.g. container runtime (Docker, rkt)
    

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22. weaveworks-
    All choices are valid
    • Choices are driven by
    • Legacy systems
    • Institutional experience and knowledge
    • Individual opinions
    

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23. weaveworks-
    Wouldn't it be nice
    • Solve the problems
    • Make as few choices as possible
    • No opaque magic to hide a bunch of complexity
    

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24. weaveworks-
    
    

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25. weaveworks-
    
    

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26. weaveworks-
    Weave Net
    • Start with the network and everything falls into place
    • Weave as bootstrap/management network (& network for pods)
    • Fully self-contained, no external requirements e.g. etcd
    • Comes with DNS
    • ‛ Each Kubernetes component gets its own DNS name
    

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27. weaveworks-
    Kubernetes Anywhere
    • 100% containerized Kubernetes (including TLS!! if you want it)
    • Zero config scale-out & in-place upgrades
    • Almost no opinions baked in
    • Weave Net + bare metal = ✓
    • Weave Net + Terraform + EC2 = ✓
    • Weave Net + docker-machine + DigitalOcean = ✓
    

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28. weaveworks-
    Kubernetes Anywhere
    

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29. weaveworks-
    Kubernetes Anywhere
    

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30. weaveworks-
    Kubernetes Anywhere
    

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31. weaveworks-
    Kubernetes Anywhere
    

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32. weaveworks-
    Kubernetes Anywhere
    

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33. weaveworks-
    Kubernetes Anywhere
    

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34. weaveworks-
    Kubernetes Anywhere
    

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35. weaveworks-
    Kubernetes Anywhere
    

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36. weaveworks-
    Kubernetes Anywhere
    

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37. weaveworks-
    kubectl
    Kubernetes Anywhere
    

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38. weaveworks-
    Demo
    

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39. weaveworks-
    ABCDEs of cloud-native apps
    • Write the App, to your own requirements
    • Build and test it
    • Provision a Cluster to run the app
    • Deploy to the cluster
    • Execute the app e.g. move traffic to it
    

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40. weaveworks-
    Thanks!
    github.com/weaveworks/kubernetes-anywhere
    

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