Container Stack Lightning Talk - Kubernetes Distributions

Transcript

1. VSHN - The DevOps Company
   Kubernetes Distribution
   The road to production
   

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2. VSHN - The DevOps Company
   Tobias Brunner, Head of DevOps & Partner @ VSHN AG - The DevOps Company
   @tobruzh, tobias.brunner@vshn.ch
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   whoami
   

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

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4. VSHN - The DevOps Company
   Control Plane Components
   ● API Server
   ● Scheduler
   ● Core Controller
   ● Distributed Datastore (etcd)
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   What is Kubernetes?
   Worker Components
   ● kubelet
   ● kube-proxy
   ● Container runtime
   

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5. What do you expect from a
   production ready
   Container Platform?
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6. VSHN - The DevOps Company
   ● Easy installation
   ● Upgrade path
   ● Access to applications (Ingress, Load Balancer)
   ● Connectivity via SDN
   ● Web interface
   ● Central log collection and visualization
   ● Automatic metrics (Cluster, Application)
   ● Authentication and Authorization
   ● Persistent Storage
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   Central features
   

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7. VSHN - The DevOps Company
   ● Monitoring (24/7)
   ● Backup
   ● Maintenance procedures
   ● Automation all over the place
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   Production readiness
   

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8. Is this provided by Kubernetes
   out-of-the-box?
   NO
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9. VSHN - The DevOps Company
   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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   Option 1
   

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10. VSHN - The DevOps Company
    Tool-List
    ● Ingress controller
    ● Cert manager
    ● Kubernetes Dashboard
    ● Fluentd
    ● Elasticsearch
    ● Kibana
    ● Prometheus
    ● Alertmanager
    ● Grafana
    ● Ansible
    ● Flannel
    ● LDAP
    ● GlusterFS
    ● Helm
    ● Flux
    ● Weave
    ● ...
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    Option 1
    

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11. VSHN - The DevOps Company
    Use a Kubernetes distribution
    Someone else does the hard job of combining the right tools and maintaining
    them.
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    Option 2
    

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12. VSHN - The DevOps Company
    Comparison to Linux Kernel: Needs plumbing (Bootloader, Init system, Shell,
    Package Manager, …)
    Choose your favorite Linux distribution!
    ● CentOS
    ● RHEL
    ● Ubuntu
    ● Arch
    ● ...
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    Kubernetes distribution
    

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13. “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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14. VSHN - The DevOps Company
    Software product for on-premises or multi-cloud
    ● Red Hat OpenShift Container Platform
    ● OKD (upstream OpenShift, formerly called Origin)
    ● CoreOS Tectonic
    ● Rancher (RKE)
    ● Canonical Distribution of Kubernetes (CDK)
    ● SUSE CaaS-Platform
    ● Kontena Pharos
    ● … and a lot more
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    Choose your favorite K8s distribution
    

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15. VSHN - The DevOps Company 15
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    Choose your favorite K8s distribution
    Hosted service in a cloud
    ● Amazon AWS: EKS
    ● Google: GKE
    ● Azure: AKS
    ● DigitalOcean: DOK
    ● Red Hat: OpenShift Online / Dedicated
    ● IBM: Cloud Kubernetes
    ● Alibaba Cloud: Container Service for
    Kubernetes
    Soon...
    ● Exoscale
    Start:
    https://www.exoscale.com/syslog/minikub
    e-alternative-in-the-cloud/
    

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16. VSHN - The DevOps Company
    ● Provider-managed vs. Self-managed
    ● Public cloud or on-premise
    ● Available cloud features
    ● Support: Community or Enterprise
    ● PoC or production
    ● Single cluster or multi-cluster
    ● Release cycle
    ● Featureset (Builds, Pipelines, …)
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    How do I choose a K8s distribution?
    

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17. Talk to me or my colleagues at VSHN!
    Try out our production ready service in Switzerland:
    APPUiO.ch
    https://register.appuio.ch
    Code: ContainerStack19 17
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    Need Help?
    

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18. Come visit us for a coffee!
    VSHN AG - Neugasse 10 - CH-8005 Zürich - +41 44 545 53 00 - https://vshn.ch/ - info@vshn.ch
    https://vshn.ch/kontakt/
    Follow us on Twitter!
    @vshn_ch
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19. https://register.appuio.ch
    Code: ContainerStack19
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    APPUiO Voucher
    

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