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Kubernetes Panel Discussion Intro

Kubernetes Panel Discussion Intro

A few slides I used to set the stage for a panel discussion on Application-Oriented Infrastructure at a kubernetes meetup in Reykjavík on the 9th of February.

The questions initially posed to the panel members were; why are we so excited about application-oriented infrastructure, why is kubernetes an improvement over existing cloud technologies, or other container orchestration systems, and finally: are we as engineers and our companies benefitting from these abstractions, and furthermore is kubernetes the right platform to choose if you want those benefits?

Steinn Eldjárn Sigurðarson

February 09, 2017

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  1. Application-Oriented
    a.k.a. how we accidentally abstracted hardware away
    from apps, and everybody loves it!

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  2. Where does this term come
    • From a 2016 Google paper named: Borg,
    Omega, and Kubernetes:
    Application-oriented Infrastructure
    Over time it became clear that the benefits of
    containerization go beyond merely enabling
    higher levels of utilization. Containerization
    transforms the data center from being
    machine oriented to being application

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  3. Kubernetes is Google's 3rd generation
    container orchestration system
    • Schedules containers to a dynamically sized
    pool of worker nodes • Schedules containers to a dynamically sized pool
    of worker nodes
    • Provides:
    • Service discovery
    • Zero-downtime deployments
    • Instant/Automatic rollbacks
    • Scalability of pods
    • Scalability of cluster by adding new nodes
    • Secret and configuration management
    • Storage orchestration
    • Batch execution

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  4. Trend not limited to Google
    (or even containers)
    • AWS (traditional cloud)
    • PaaS (Heroku, etc)
    • Mesos+Marathon
    • AWS ECS
    • Microsoft Service Fabric
    • Serverless (AWS lambda + AWS API gateway)

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  5. Why are we interested?
    • Developers: fast, reliable deployments + easily
    port applications between environments, without
    worrying about hardware
    • SysAdmins: Simpler provisioning, easier
    administration, homogenous monitoring
    requirements, less vendor dependence
    • Management: faster product iterations, bugfixes,
    stronger bargaining positions with infrastructure
    vendors => better bottom line

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  6. Are we there yet?
    • And is kubernetes the “right” tool of choice?
    • Is it going to be the “linux kernel” of distributed
    systems orchestration?
    • Feels like we’re all building tools to solve the
    same problems — but do we like kubernetes
    precisely because it offers powerful primitives,
    but few opinions?

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