@tompeham I @usersnap

HOW DOCKER IS SOLVING

REAL WORLD PROBLEMS FOR

WEB DEVELOPERS

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@TOMPEHAM I @USERSNAP

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BEFORE WE GET STARTED…

You can find all resources here!

HERE’S HOW DOCKER IS

SOLVING REAL WORLD PROBLEMS

FOR WEB DEVELOPERS

What is Docker?Docker is an open source tool for running isolated containers on Linux making the deployment of apps inside containers faster. Docker creates portable, self-sufficient containers from any application.

ThesamecontainerthatthedeveloperbuildsandtestsonhisPC,canruninproduction,onVMs,inthecloudandalotmoreplaces.

Youcanrunasingleservicepercontainer,e.g.onecontainerforyourMySQL,onecontainerforyourApache,andonecontainerforyourWordPressinstallation.

Docker containers vs. VMs

TheabilitytoseparateanapplicationfromtheunderlyingLinuxoperatingsystemisveryattractive.ComparingDockercontainerstoVMsisavalidthing,althoughDockercontainersdonotreplaceVMs.

Container & Container-as-a-ServiceContainers have been around for quite a while. Although it never really became something like an “industry standard”, Docker made it all possible.

Docker is basically built on top of LXC (Linux Containers). It’s definitely not a replacement for LXC, instead Docker offers some high level features on top of LXC

The growth of the Container-as-a-Service business is immense.

Real-world use cases for web developers

Dockerisbasicallydesignedinawaythatitcanbeusedinmanydifferentuse

cases.

BigcommunityWithitsgrowingcommunityof

developers,therearethousandsofready-to-gocontainersforpopular

applicationslikeMySQLorWordPress.

LocalDevelopmentWorkingwithDockercontainerson

localenvironmentisatrueproductivityboosteranddefinitelysavesyousomelastminutehassle.

AppisolationWithDockeryoubasicallyrunoneapplicationorprocesspercontainer.Containerstakeadvantageofthe

abilitytocreateisolatedenvironments.

RapiddeploymentWithDocker,youcanhave

everythingup-and-runningwithinseconds.Bysimplycreatinga

containerandnotbootingupanOS,wedefinitelyseesometimesaved.

Security benefits of Containers

Running various containers can provide some security benefits. By running applications on various containers, each container only has access to the ports and files explicitly exposed by the other container.

Further on, containers offer a higher level of control on what data and software are installed. Some malodorous script run in one container, won’t affect any other container.

Simplified testing

SettinguptestingenvironmentswithDockercontainersissuper-easy.

BysettingupdifferentDockercontainersfortesting,youcandramaticallyspeedupyourtestsuitebyseparatingdifferentversionsindifferentcontainers.

Easy configuration

SettinguptestingenvironmentswithDockercontainersissuper-easy.

BysettingupdifferentDockercontainersfortesting,youcandramaticallyspeedupyourtestsuitebyseparatingdifferentversionsindifferentcontainers.

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