What's new in Kubernetes 1.3

There's a lot of new features in Kubernetes 1.3. From local clusters to cross cloud federated clusters to persistent data, Kubernetes 1.3 can help your enterprise meet it's needs at scale. Check out this presentation to see what's new in Kubernetes 1.3.

Transcript

1. What’s New in K8s 1.3
   Carter Morgan
   @_askcarter
   @_askcarter
   

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2. Background: 3 Hurdles
   @_askcarter
   

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3. The App How do I write scalable apps?
   How do I package and distribute?
   What runtimes am I locked into?
   @_askcarter
   

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4. The Infra Can I scale?
   Is it automatic?
   Am I locked in?
   @_askcarter
   

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5. The Wild Where are my machines?
   How do I update?
   @_askcarter
   

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6. Kubernetes
   Open Source Container Automation
   Framework
   • Open API
   • Based on Google’s experiences
   @_askcarter
   

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7. 3 Claims
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8. How does k8s hold up?
   @_askcarter
   

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9. Kubernetes
   Pre 1.3
   Horizontal Scaling
   Automated Rollbacks
   Container Scheduling
   Resource Quotas and Limits
   Self-healing
   Service Discovery and Load Balancing
   Secret and Configuration Management
   Daemon Sets
   Secrets and Config Maps
   Deployments
   (already had a lot)
   @_askcarter
   

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10. monolith
    nginx
    hello
    nginx
    Microservices
    Monolith
    auth
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11. Container Based
    Photo © ptnimages via Canva.com
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12. Pods
    Logical Application
    • One or more containers
    and volumes
    • Shared namespaces
    • One IP per pod Pod
    nginx
    monolith
    NFS
    iSCSI
    GCE
    10.1.0.100
    @_askcarter
    

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13. Labels
    Arbitrary metadata
    attached to any API object
    • Queryable by Selectors
    • How Kubernetes does
    grouping Pod
    nginx
    monolith
    Pod
    nginx
    monolith
    labels:
    version: v1
    track: stable
    labels:
    version: v1
    track: test
    @_askcarter
    

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14. Labels
    selector: version=v1
    Pod
    nginx
    monolith
    Pod
    nginx
    monolith
    labels:
    version: v1
    track: stable
    labels:
    version: v1
    track: test
    @_askcarter
    

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15. Labels
    selector: track=stable
    Pod
    nginx
    monolith
    Pod
    nginx
    monolith
    labels:
    version: v1
    track: stable
    labels:
    version: v1
    track: test
    @_askcarter
    

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16. Services
    Persistent IPs for Pods
    • Uses Labels to
    Target Pods
    • Internal or External IPs
    Pod
    nginx
    monolith
    Pod
    nginx
    monolith
    Service
    10.8.244.100
    10.1.0.2
    10.1.0.1
    @_askcarter
    

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17. Deployments
    Drive current state towards desired state
    Node 1
    Pod
    app: hello
    replicas: 1
    hello
    Node 2
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18. Deployments
    Drive current state towards desired state
    Node 1
    Pod
    app: hello
    replicas: 2
    hello
    Node 2
    Pod
    hello
    @_askcarter
    

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19. Deployments
    Drive current state towards desired state
    Node 1
    Pod
    app: hello
    replicas: 2
    hello
    Node 2
    @_askcarter
    

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20. Deployments
    Drive current state towards desired state
    Node 1
    Pod
    app: hello
    replicas: 2
    hello
    Node 2
    Pod
    hello
    @_askcarter
    

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21. Rolling Update
    Node 1
    Pod
    hello
    Pod
    hello
    Node
    Pod
    hello
    Node
    Pod
    hello
    Node
    Pod
    hello
    Service
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22. Rolling Update
    Node 1
    Pod
    hello
    Pod
    hello
    Node
    Pod
    hello
    Node
    Pod
    hello
    Node
    Pod
    hello
    Service
    Pod
    goodbye
    @_askcarter
    

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23. Rolling Update
    Node 1
    Pod
    hello
    Pod
    hello
    Node
    Pod
    hello
    Node
    Pod
    hello
    Node
    Pod
    hello
    Service
    Pod
    goodbye
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24. Rolling Update
    Node 1
    Pod
    hello
    Pod
    hello
    Node
    Pod
    hello
    Node
    Pod
    hello
    Node
    Pod
    hello
    Service
    Pod
    goodbye
    @_askcarter
    

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25. Rolling Update
    Node 1
    Pod
    hello
    Pod
    hello
    Node
    Pod
    hello
    Node
    Node
    Pod
    hello
    Service
    Pod
    goodbye
    Pod
    goodbye
    @_askcarter
    

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26. Rolling Update
    Node 1
    Pod
    hello
    Pod
    hello
    Node
    Pod
    hello
    Node
    Node
    Pod
    hello
    Service
    Pod
    goodbye
    Pod
    goodbye
    @_askcarter
    

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27. Rolling Update
    Node 1
    Pod
    hello
    Pod
    hello
    Node
    Pod
    hello
    Node
    Node
    Pod
    hello
    Service
    Pod
    goodbye
    Pod
    goodbye
    @_askcarter
    

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28. Rolling Update
    Node 1
    Pod
    hello
    Pod
    hello
    Node
    Pod
    hello
    Node
    Node
    Service
    Pod
    goodbye
    Pod
    goodbye
    @_askcarter
    

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29. Rolling Update
    Node 1
    Pod
    hello
    Pod
    hello
    Node
    Pod
    hello
    Node
    Node
    Service
    Pod
    goodbye
    Pod
    goodbye
    Pod
    goodbye
    @_askcarter
    

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30. Rolling Update
    Node 1
    Pod
    hello
    Pod
    hello
    Node
    Pod
    hello
    Node
    Node
    Service
    Pod
    goodbye
    Pod
    goodbye
    Pod
    goodbye
    @_askcarter
    

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31. Rolling Update
    Node 1
    Pod
    hello
    Pod
    hello
    Node
    Pod
    hello
    Node
    Node
    Service
    Pod
    goodbye
    Pod
    goodbye
    Pod
    goodbye
    @_askcarter
    

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32. Rolling Update
    Node 1
    Pod
    hello
    Pod
    hello
    Node Node
    Node
    Service
    Pod
    goodbye
    Pod
    goodbye
    Pod
    goodbye
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33. 3 Claims: revisited
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34. Kubernetes 1.3
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35. Kubernetes 1.3
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36. Kubernetes 1.3
    Init containers (alpha)
    Fixed PDs
    Cluster Federation (alpha)
    Optional HTTP2
    Pod Level QoS Policy
    Tls secrets
    kubectl set command
    UI
    Jobs
    RBAC (alpha, experimental)
    Garbage Collector (alpha)
    Pet Sets
    rkt Container runtime
    Network policies
    (and more)
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37. Cluster
    Federation
    Manage clusters across region
    and providers
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38. Jobs
    Pods *expected* to terminate
    Creates 1...n Pods and ensures that
    a certain number of them run to
    completion
    3 types: non-parallel, fixed count
    parallel, and parallel with a work
    queue
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39. Job: Work Queue with Pod Per Work Item
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40. Init Containers
    Sequential Pod Initialization
    @_askcarter
    Pod
    Init 1
    monolith
    NFS
    10.1.0.100
    Init 2 Init 3
    

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41. Init Container: register pod to external service
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42. Init Container: clone a git repo into a volume
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43. Pet Sets
    Pods with ego
    Pods are fungible, stateless?
    Pets are Pods with:
    1. Stable hostname
    2. A unique name
    3. Stable storage
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44. Pet Sets
    Pods with ego
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45. PetSet: example manifest
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46. PetSet: headless service
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47. Bonus
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48. Google
    Container
    Engine
    (GKE)
    Cluster autoscaling (beta)
    IAM support
    Local SSD
    Container-VM Images (beta)
    Node pools
    @_askcarter
    

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49. minikube
    github.com/kubernetes/minikube
    @_askcarter
    

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50. Kube UI
    kubernetes.io/docs/user-guide/ui/
    @_askcarter
    

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51. Thing I learned (making this talk)
    (making this talk)
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52. Recap
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53. 3 Hurdles The App
    The Infra
    The Wild
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54. 3 Claims Planet Scale
    Never Outgrow
    Run Anywhere
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55. Kubernetes 1.3 Planet Scale - SLA 2000 nodes
    Never Outgrow - minikube to prod
    Run Anywhere - Cluster Federation
    @_askcarter
    

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56. Scalable
    Microservice
    with Kubernetes
    @_askcarter
    

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57. Carter Morgan
    @_askcarter
    Learn more here!
    http://blog.kubernetes.io/2016/07/kubernetes-1.3-bridging-cloud-native-and-enterprise-workloads.html
    @_askcarter
    

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