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MakingSense,andUse,ofContainers

MattMilner@milnertweet

https://linkedin.com/in/mattmilner

TwitterLogo byUnknownAuthorislicensedunderCCBY LinkedInLogo byUnknownAuthorislicensedunderCCBY-SA

Page 2: Making Sense, and Use, of Containers - Ilm · Containers at a Glance Host Operating System Hypervisor Guest Operating System Guest Operating System App 1 App 2 Host Operating System

Containers– NotJustforLeftovers

ThisPhoto byUnknownAuthorislicensedunderCCBY

ContainersataGlance

HostOperatingSystem

Hypervisor

GuestOperatingSystem

App1 App2

HostOperatingSystem

ContainerEngine

App1 App2

VirtualMachineModel ContainerModel

BaseImage

Page 4: Making Sense, and Use, of Containers - Ilm · Containers at a Glance Host Operating System Hypervisor Guest Operating System Guest Operating System App 1 App 2 Host Operating System

ContainerImages

ThisPhoto byUnknownAuthorislicensedunderCCBY-NC-ND

• BaseimageistheOS• Layerimagesontopofthatimage• Packageyourapplicationasanimage• Yourapplicationisthetopimage

Page 5: Making Sense, and Use, of Containers - Ilm · Containers at a Glance Host Operating System Hypervisor Guest Operating System Guest Operating System App 1 App 2 Host Operating System

Acontainer isarunninginstanceofanimage.

Page 6: Making Sense, and Use, of Containers - Ilm · Containers at a Glance Host Operating System Hypervisor Guest Operating System Guest Operating System App 1 App 2 Host Operating System

HowDoesDockerFitIn?

Dockercontainerformat

Dockerprovidesacontainerplatform• Runtime• Governance• Security• Orchestration

Page 7: Making Sense, and Use, of Containers - Ilm · Containers at a Glance Host Operating System Hypervisor Guest Operating System Guest Operating System App 1 App 2 Host Operating System

CreateanImage

DockerFiledefinesthe

image

•Contents•Portmappings•Commands

UseDockertoolsto

buildtheimage

•CommandLine•CI/CDfriendly

Page 8: Making Sense, and Use, of Containers - Ilm · Containers at a Glance Host Operating System Hypervisor Guest Operating System Guest Operating System App 1 App 2 Host Operating System

IHaveanImage– NowWhat?

Runanimageasaninstance

Pushanimagetoaregistry

Page 9: Making Sense, and Use, of Containers - Ilm · Containers at a Glance Host Operating System Hypervisor Guest Operating System Guest Operating System App 1 App 2 Host Operating System

WhyContainers?

Lightweighthostingofapplications

Consistent,repeatabledeployment

Removesinconsistentenvironments

Page 10: Making Sense, and Use, of Containers - Ilm · Containers at a Glance Host Operating System Hypervisor Guest Operating System Guest Operating System App 1 App 2 Host Operating System

AppApp

AppDeploymentWithoutContainers

HostOperatingSystem

Hypervisor

Linux/Windows

HostOperatingSystem

Hypervisor

Linux/Windows

AppBuild

Page 11: Making Sense, and Use, of Containers - Ilm · Containers at a Glance Host Operating System Hypervisor Guest Operating System Guest Operating System App 1 App 2 Host Operating System

AppApp

AppDeploymentWithContainers

HostOperatingSystem

ContainerEngine

HostOperatingSystem

ContainerEngine

OSImageAppBuildOSImageAppServerImageAppServerImage

Page 12: Making Sense, and Use, of Containers - Ilm · Containers at a Glance Host Operating System Hypervisor Guest Operating System Guest Operating System App 1 App 2 Host Operating System

OrganizingContainers

MultipleinstancesDependenciesCommunicationbetweeninstances

ThisPhoto byUnknownAuthorislicensedunderCCBY-NC-ND

Orchestration

Page 13: Making Sense, and Use, of Containers - Ilm · Containers at a Glance Host Operating System Hypervisor Guest Operating System Guest Operating System App 1 App 2 Host Operating System

Questions?

MakingSense,andUse,ofContainers

MattMilner@milnertweet

https://linkedin.com/in/mattmilner

TwitterLogo byUnknownAuthorislicensedunderCCBY LinkedInLogo byUnknownAuthorislicensedunderCCBY-SA

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