running a docker based backend in the cloud

1JavaMeetup Berlin|28thof June2016

Florian Feigenbutz / @flofeigenbutz

Running a Docker Based

Backend in the Cloud

by


Agenda

• What is mealy?

• mealy’s Backend Stack

• Production in the Cloud

• Lessons Learned

• Live Release


mealy: More than just an app

! Personal Cookbook

" Personal Shopper

# Social Network

$ Market Place


Backend Stack


mealy‘s Backend Stack

• BloggerPlatform+APIforMobileApp

• JavawithSpring+somePython

• MySQLandMongoDB• RabbitMQ

• DistributedApplication//Microservice Architecture• EachServicerunsinasingleDockercontainer

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mealy‘s Backend Stack

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Basic Docker

• Containerswrapsoftwareinacompletefilesystem• Linuxkernelfeatures(controlgroups,namespaces,aufs)+extensions• OS-levelvirtualization• Isolatedfilesystempercontainer

• ImagineaslightweightVMs• ShareOS• Sharecommonfiles• Uselayeredfilesystem

• RunsonLinux,OSX&Windows

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Docker Ecosystem

• DockerEngine:Core- buildsDockerfiles intoimages,runscontainers• DockerHub:Hostingrepositoryserviceforbuiltimages• DockerMachine:CreateDockerinstancesindifferentenvironments• DockerSwarm:EnablesclustersofDockerinstances• DockerCompose:Manageapplicationsspanningmultiplecontainers• DockerCloud:ScaleComposeapplicationsusingpublicclouds• DockerDataCenter:Hostedall-in-onesolution

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Production in

the Cloud


Running in Production

• WrappedSoftware:• Buildingready-to-goDockerimages• Includeencryptedconfiguration

• Availability:Blue/GreenDeployment• Ensureavailabilityatalltimes• Self-Madevs.AssistedSolution• Inourcase:MicrosoftAzureVMsvs.AWSECS

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Build Process

• SprintBootbuildsself-runningJAR• WeuseGradle…

• UsingJenkinsCIto• buildJAR• build&pushtorepository• runimages

• SampleDockerfile:FROM java:8MAINTAINER [email protected] 8080ADD build/mealy-recipes.jar /data/mealy-recipes.jarCMD java -jar /data/mealy-recipes.jar

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First Setup: Self-Made Blue/Green Deployment

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Now: Assisted Blue/Green Deployment via AWS

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Lessons Learned

• Separatepersistentstorage• Riskoflosingdata

• Reducecomplexitywherepossible• FindyoursweetspotintheDockerecosystem

• LoggingTunnel• NofuntoSSHintosinglemachines• AWS:CloudWatch Logs

• Monitoring• BackendServiceMetrics&ResponseTimes• EndUserExperience:AppCrashes&ResponseTimesinApp

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Live Deployment…


It’s Q&A Time…!

Florian FeigenbutzHead of Backend Development

% flofeigenbutz

& [email protected]

Thank you.