The anatomy of a Kubernetes Distribution

Insight what a Kubernetes distribution is and why you should use one.

Transcript

1. vshn.ch - The DevOps Company 2018-08-28
   Cloud Native Meetup August 2018
   Kubernetes Distributions
   

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2. vshn.ch - The DevOps Company 2018-08-28
   About me
   Tobias Brunner, Head of DevOps and Owner @ VSHN AG
   @tobruzh, tobias.brunner@vshn.ch
   VSHN AG - The DevOps Company
   since 2014, 28 people in Zurich
   https://vshn.ch —> @vshn_ch
   

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3. vshn.ch - The DevOps Company 2018-08-28
   What is Kubernetes?
   …“a portable, extensible open-source platform for
   managing containerized workloads and services, that
   facilitates both declarative configuration and
   automation“…
   

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4. vshn.ch - The DevOps Company 2018-08-28
   What is Kubernetes?
   Master Components (Control Plane)
   - API Server
   - Scheduler
   - Core Controller
   - Distributed Datastore (etcd)
   

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5. vshn.ch - The DevOps Company 2018-08-28
   What is Kubernetes?
   Node Components
   - kubelet
   - Kube-proxy
   - Container runtime
   

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6. vshn.ch - The DevOps Company 2018-08-28
   What do you expect from a Container Platform?
   

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7. vshn.ch - The DevOps Company 2018-08-28
   - Easy installation
   - Upgrade path
   - Access to applications (Ingress)
   - Connectivity via SDN
   - Web interface
   - Central logging
   - Automatic metrics (Cluster, Application)
   - Authentication and Authorization
   - Persistent Storage
   Base features
   

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8. vshn.ch - The DevOps Company 2018-08-28
   Important for production
   - Monitoring (24/7)
   - Backup
   - Maintenance procedures
   - Automation all over the place
   

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9. vshn.ch - The DevOps Company 2018-08-28
   Is this provided by Kubernetes out-of-the-box?
   

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10. vshn.ch - The DevOps Company 2018-08-28
    No.
    

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11. vshn.ch - The DevOps Company 2018-08-28
    Option 1
    „Do it yourself: Kubernetes the hard way“
    All can be combined to get exactly what you want.
    Comparable to Linux from Scratch (LFS).
    

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12. vshn.ch - The DevOps Company 2018-08-28
    Tool-List
    - Ingress controller
    - Kubernetes dashboard
    - FLuentd
    - Elasticsearch
    - Kibana
    - Prometheus + Alertmanager
    - Grafana
    - Ansible
    - Flannel
    - KeyCloak
    - GlusterFS Cluster
    - …
    

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13. vshn.ch - The DevOps Company 2018-08-28
    Option 2
    „Use a Kubernetes distribution“
    Someone else does the hard job of combining the right
    tools.
    

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14. vshn.ch - The DevOps Company 2018-08-28
    Kubernetes Distribution
    Comparison to Linux Kernel: Needs plumbing (Bootloader,
    Shell, Package Manager, …)
    Choose your favorite Linux distribution!
    - CentOS
    - RHEL
    - Ubuntu
    Arch
    - …
    

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15. vshn.ch - The DevOps Company 2018-08-28
    „A Kubernetes distribution combines a list of tools
    to provide an out-of-the box Kubernetes solution -
    Eventually being a ready to be used product.“
    

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16. vshn.ch - The DevOps Company 2018-08-28
    Choose your favorite K8s distribution
    On-Premise / Multi-Cloud
    - Red Hat OpenShift Container Platform
    - OKD (upstream OpenShift, formerly called Origin)
    - Tectonic
    - Rancher
    - Canonical Distribution of Kubernetes (CDK)
    - SUSE CaaS-Platform
    - Kontena Pharos
    … And a lot more
    

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17. vshn.ch - The DevOps Company 2018-08-28
    Choose your favorite K8s distribution
    Public Cloud / Hosted
    - Amazon AWS: EKS
    - Google: GKE
    - Azure: AKS
    - Red Hat: OpenShift Online / Dedicated
    - IBM: Cloud Kubernetes
    

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18. vshn.ch - The DevOps Company 2018-08-28
    How do I choose a K8s distro?
    - Managed vs. Self-managed
    - Public cloud or on-premise
    - Available cloud features
    - Support: Community or Business
    - PoC or production
    - Single cluster or multi-cluster
    - Release cycle
    - Featureset (Builds, Pipelines, …)
    

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19. vshn.ch - The DevOps Company 2018-08-28
    Getting Help?
    Talk to me or my colleagues at VSHN!
    

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