IPC16: A Practical Introduction to Kubernetes

A practical introductionto Kubernetes

by Robert Lemke

Robert Lemke

CEO FlownativeProject Founder Neosrobert@flownative.com@robertlemke

Disclaimer

How do you deployPHP applications?

Containers are not light-weight virtual machines.They are mostly a clever way to isolate processes.

Managing containers ain’t easy.

vs

“"So let me get this straight. You want to build an external version of the Borg task scheduler. One of our most important competitive advantages. The one we don’t even talk about externally. And, on top of that, you want to open source it?"

Urs HölzleGoogle Senior VP of Infrastructure

Mesos

Nomad

Swarm

App Code

🤓

Infrastructure

😎

application

cluster

operating system

hardware

> clustered environment > multiple Docker hosts

> container grouping > load balancing > auto-healing > scaling

Kubernetesnetworks

Kubernetes Master

Minion 1(Node)

Minion2(Node)

Minion3(Node)

service network

overlay network

Internet

Kubemaster

provides scheduler and API server

Minions

act as nodes run kubelets

index.php

index.phpNginx PHP-FPM

index.phpNginx PHP-FPM Pod

index.phpNginx PHP-FPM Pod 1

index.phpNginx PHP-FPM Pod 2

Replication Controller

index.phpNginx PHP-FPM Pod 1

index.phpNginx PHP-FPM Pod 2

Replication Controller

shared network,shared volumes

shared network,shared volumes

index.phpNginx PHP-FPM Pod 1

index.phpNginx PHP-FPM Pod 2

Replication Controller

shared network,shared volumes

shared network,shared volumes

app=wwwneosio

Building blocks

Let’s spin up a cluster anddeploy a PHP application.

flownative/kubernetes-helloworld:v1

index.php

setup.sh

controller-v1.yaml

controller-v1.yaml

controller-v1.yaml

Demo

Challenges

Cluster upgrades

Application fitness

Storage

Image Build Process

Monitoring

Getting started

http://kubernetes.io/

https://github.com/kubernetes/minikube

What could Kubernetes mean for you?

❤

+

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robert@flownative.com www.flownative.com

@robertlemke

your thoughts?