03-Kubernetes for non Coders by Bill Mulligan

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Kubernetes for Non-Coders

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A Look At IT Adoption

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Dev Ops

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Coders Non-Coders Tech Business

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#1 IT challenge is organizational change

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A lot of money $$$ ● The average company uses 5-6 cloud platforms and 300-3,000 cloud services - Sky ● Cloud spending will top $203.4 billion by 2020 - IDC ● 67% of enterprise IT infrastructure and software spending will be for cloud by 2020 - Gartner

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A lot of words

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Kubernetes for Non-Coders What are we dealing with? How did we get here? What is Kubernetes? What is next? All without a line of code!!!

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About Me:

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CLOUD NATIVE

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CLOUD NATIVE

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What is Kubernetes? Kubernetes is 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 Cloud Native? Cloud native technologies empower organizations to build and run scalable applications in modern, dynamic environments such as public, private, and hybrid clouds. Containers, service meshes, microservices, immutable infrastructure, and declarative APIs exemplify this approach. These techniques enable loosely coupled systems that are resilient, manageable, and observable. Combined with robust automation, they allow engineers to make high-impact changes frequently and predictably with minimal toil.

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apiVersion: kubermatic.k8s.io/v1 kind: Cluster metadata: name: g8gpmr9fw3 spec: cloud: dc: hetzner-nbg1 hetzner: token: SOME_SECRET_TOKEN clusterNetwork: dnsDomain: cluster.local pods: cidrBlocks: - 172.25.0.0/16 services: cidrBlocks: - 10.10.10.0/24 humanReadableName: demo version: 1.10.8 address: adminToken: 975w4b.7tcjkwl5zzhjrsg5 externalName: g8gpmr9fw3.europe-west3-c.dev.kubermatic.io ip: 35.198.93.90 url: https://g8gpmr9fw3.europe-west3-c.dev.kubermatic.io:32489 status: health: apiserver: true controller: true etcd: true machineController: true openvpn: true scheduler: true namespaceName: cluster-g8gpmr9fw3 Code ≈ Non-Code??

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~Business Code~ Better Faster Cheaper S

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What is Kubernetes?

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What is Kubernetes? Greek - meaning helmsman or pilot Root of Governor cybernetics (study of communication and control)

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Loodse Plattdeutsch - harbor pilot

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Kubernetes Project Stats ● Over 42,000 stars on Github ● 1800+ Contributors to K8s Core ● Most discussed Repository by a large margin ● 50,000+ users in Slack Team

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Kubernetes Project Stats

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Who “Manages” Kubernetes? Vendor neutral governance group of many “cloud native” projects

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Working Definitions

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What is Business Kubernetes? Kubernetes is the governor of cloud native IT

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What is Business Cloud Native? Cloud native technologies help businesses build modern software that delivers a good and/or service to their customers. These technologies create better systems that allow engineers to make changes faster at a lower cost. S

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History Lesson: The Journey to Cloud Native

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Software Application Servers 01000011011011110110010001100101

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Person House

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Hosting Continuum Data Center Cloud Virtual Machine Container Serverless Home Construction Renting Apartment Flat Share Hotel

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Cloud Native Continuum These technologies create better systems that allow engineers to make changes faster at a lower cost. Simplicity Agility Density Isolation Customization Control

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Build Your Own Data Center Home Construction

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Non-Coder Translation Build Your Own Isolation Customization Control

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Non-Coder Translation Build Your Own Problems Better Faster Cheaper Two Weeks CapEx

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Rental Cloud Landlord

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Non-Coder Translation Rental Better Faster Cheaper Two Weeks ↓ Two Days CapEx ↓ OpEx

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Non-Coder Translation Rental Problems Better Faster Cheaper Two days Dedicated costs Manual set-up process

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Split Space Virtual Machine Furnished Apartment Guest OS Server Binaries /Libraries App 1 Host OS Guest OS Binaries /Libraries App 1’ Guest OS Binaries /Libraries App 2 Hypervisor

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Non-Coder Translation Split Space Better Faster Cheaper Two Days ↓ Ten Minutes Dedicated ↓ Per-second-billing Manual set-up process ↓ Consistent deployments

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Non-Coder Translation Split Space Problems Better Faster Cheaper Ten Minutes Single use Clashing dependencies

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Shared Space Container Flat Share Server Host OS Binaries /Libraries Binaries /Libraries App 1 App 1’ App 2'’ App 2’ App 2

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Non-Coder Translation Smaller Sharing Better Faster Cheaper Ten Minutes ↓ 1/2 Second 15% CPU utilization ↓ 80% CPU Utilization Separation of dependencies

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Non-Coder Translation Smaller Sharing Problems Better Faster Cheaper Set up time Always on Set up required

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On-demand Serverless Hotel

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Non-Coder Translation On-demand Better Faster Cheaper Always ready Pay per Execution No setup required

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Hosting Continuum Data Center Cloud Virtual Machine Container Serverless Home Construction Renting Apartment Flat Share Hotel Simplicity Agility Density Isolation Customization Control

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Cloud Native Continuum Simplicity Agility Density Focus on business value, not the infrastructure

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Kubernetes: The Cloud Native Operating System

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Software Applications Servers 01010010011010101001010001 10101010010101001010010101 01010001010101011010101010 10101010101010101111010101 01010100101000100101010101 01010100101010100101111010 Enterprise IT

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People Housing City

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What is Business Kubernetes? Kubernetes governs cloud native IT A City governs the housing market

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What is Kubernetes? Kubernetes is a portable, extensible open-source platform for managing workloads and services, that facilitates both declarative configuration and automation.

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Bare Metal Any Cloud Cloud Native Stack Kubernetes KubeVirt/Virtlet Software Applications Container Engine Containers Housing Stack Governor People Land Bare Metal Any Cloud Cloud Native Stack VMs Kubernetes KubeVirt/Virtlet Serverless Knative/OpenFaaS Software Applications Container Engine Containers Homes Hotels Apartments City Services

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Bare Metal Any Cloud Cloud Native Stack Kubernetes KubeVirt/Virtlet Software Applications Container Engine Containers Housing Stack Governor Cloud Native Stack Kubernetes

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Non-Coder Translation Governance Problems Better Faster Cheaper How quickly can we build? How quickly can we respond to incidents? What is the most cost-effective way to build? How can we save human time? What is the best way to govern? How does it fit our needs?

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What is Kubernetes? Kubernetes is a portable, extensible open-source platform for managing workloads and services, that facilitates both declarative configuration and automation.

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What is the problem? A problem can be defined as any situation in which a gap is perceived to exist between what is and what should be. - Arthur B. Van Gundy Jr.

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Problem Solved “Actual State” “Desired State” Reconciliation

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Declarative Configuration Reconciliation Scheduler Controller

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Kubernetes etcd API server Scheduler Controller You Reconciliation

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City City Plan Mayor Builder Regulator You Reconciliation

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Cloud Native City etcd API server Scheduler Controller City Plan Mayor Builder Regulator You

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Kubernetes Advantage: Declarative Configuration and Automation Better Faster Cheaper Automatic Replace human time with computer time Declarative Reconciliation

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Non-Coder Translation Building Blocks Problems Better Faster Cheaper How quick is construction? Where is it cheapest to build? How to ensure quality and consistency of compute?

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What is Kubernetes? Kubernetes is a portable, extensible open-source platform for managing workloads and services, that facilitates both declarative configuration and automation.

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Building Blocks Nodes Land

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Kubernetes Advantage: Portable Platform Better Faster Cheaper No retooling needed No vendor lock-in Same everywhere

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Bare Metal Any Cloud Cloud Native Stack Kubernetes KubeVirt/Virtlet Software Applications Container Engine Containers Housing Stack Governor Land Bare Metal Any Cloud Cloud Native Stack VMs Kubernetes KubeVirt/Virtlet Serverless Knative/OpenFaaS Container Engine Containers Homes Hotels Apartments City Services

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Non-Coder Translation Scaling Services Problems Better Faster Cheaper How long does it take to switch contexts? Where is the cost overview and how can it be optimized? How to ensure quality, consistency, and abstraction?

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What is Kubernetes? Kubernetes is a portable, extensible open-source platform for managing workloads and services, that facilitates both declarative configuration and automation.

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Scaling Services Workloads and Services Houses Bare Metal Any Cloud Cloud Native Stack VMs Kubernetes KubeVirt/Virtlet Serverless Knative/OpenFaaS Container Engine Containers

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Kubernetes Advantage: Managing Workloads and Services Better Faster Cheaper No context switching Consolidation and streamlining Abstractions and consistency

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Bare Metal Any Cloud Cloud Native Stack Kubernetes KubeVirt/Virtlet Software Applications Container Engine Containers Housing Stack Governor People Land Buildings Services Bare Metal Any Cloud Cloud Native Stack VMs Kubernetes KubeVirt/Virtlet Serverless Knative/OpenFaaS Software Applications Container Engine Containers Bare Metal Any Cloud Cloud Native Stack Kubernetes KubeVirt/Virtlet Software Applications Container Engine Containers Housing Stack Governor People Land Homes Hotels Apartments City Services

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Non-Coder Translation Day 2 Problems Better Faster Cheaper When is new functionality delivered? Should extras be built or bought? What else is needed and can be customized?

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What is Kubernetes? Kubernetes is a portable, extensible open-source platform for managing workloads and services, that facilitates both declarative configuration and automation.

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CNCF Landscape

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Day 2 IT City Shopping Mall Hospital Church University Clinic Museum Opera Docks CI/CD Observability Service proxy Service Mesh Streaming/messaging Networking Container registry Software distribution

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Kubernetes Advantage: Extensible and Open-source Better Faster Cheaper OSS means you can contribute Build and/or buy Choice and flexibility

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What is Kubernetes? Kubernetes is a portable, extensible open-source platform for managing workloads and services, that facilitates both declarative configuration and automation. S

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What is IT for Business? Kubernetes is the cloud native operating system that allows engineers to create better systems which can make changes faster at a lower cost. This enables businesses to deliver better value to customers, more quickly and less expensively. S