© Vinli 2015

Tooling Kubernetes for us lowly developers

VINLI’S FARM

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WHAT DO WE DO?

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© Vinli 2015

© Vinli 2015

© Vinli 2015

FOR DEVELOPERSBY DEVELOPERS

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Welcome to the Circle-V Ranch

OUR LITTLE FARM

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A little backstory

● Our whole company is container-native.● We create 100s of Docker images a day.● 12-Factor app is gospel

© Vinli 2015

A little backstory

● We wanted a developer-friendly App Platform.● Originally deployed on Elastic Beanstalk ● Tried ECS...(for 2-3 days)...yeah...● Moved to k8s over a weekend

© Vinli 2015

Our own Mini Application Platform

● 40-50 apps/services/workers● Across 4 stacks● Based on the k8s primitives● RC and Service “Compiler”● Any pod just has one

requirement○ App/Service - GET /ping○ Worker - health message

{ "name": "vinli-trip-service", "image": "vinli/trip:1.5.2-5276-fb58c5f", "cpu": [0.1982, 0.2949, 0.2167], "mem": 192114688, "time": 1447211794188, "heap": 68562872, "loop": 0.03902798891067505}

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Shepherd

POST /api/v1/sheep

{

"sheep": {

"stack":"dev",

"service":"trip",

"version":"1.5.2-5276-fb58c5f"

}

}

POST /api/v1/promotions

{

"promotion": {

"service":"trip",

"from":"dev",

"to": "qa"

}

}

Herding the pods

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Foreman

POST /api/v1/workers

{

"worker": {

"queue":"startup",

"name":"startup-worker",

"image":"vinli/startup-worker:1.2.13-662-93eb21a"

}

}

Managing the workers

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Farmer

POST /api/v1/apps/ trip/plants

Increases replica count by 1

POST /api/v1/apps/ trips/picks

Decreases replica count by 1

POST /api/v1/apps/ trip/prunes

Delete 1 pod (RC replaces)

POST /api/v1/apps/ trips/burns

Blows away all the pods

Taking the metaphor a bit too far

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Butcher

POST /api/v1/jobs

{

“job”: {

“method”: “POST”,

“url”: “//farmer-service/api/v1/apps/trip/prunes”,

“payload”: { … },

“interval”: “1h”

}

}

Culling the herd and other jobs

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And other farm animals

● Really simple tooling● Kubernetes is our persistence● But we don’t put persistence on k8s, yet● Eventually Consistent Architecture● Trusting our developers

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© Vinli 2015

Powell Kinney@pkinney

Greg Aker@gaker

https://dev.vin.li@vinlidev

© Vinli 2015

THE ROAD AHEAD