DockerBasics
Besmart.Thinkopensource.
Whatarecontainers?
Technicallyspeakingisolateduser-spaceprocesses
a.k.a.OS-levelvirtualization
ProcesstreeisolationFilesystemisolationNetworkisolation
DockerLinuxInterfaces
Goalsofcontainerization
OS-levelvirtualizationWhichsolutionsareavailable?
DockerrktLXCSolarisZonesFreeBSDjail
What'sthedifferencetoVMs?
Containersare
externallymanagednochangesduringruntimepersistenceisoptional
DockerBasics
DockerLifecycle
DockerInstallationhttps://docs.docker.com/engine/installation/
Firststeps
YourfirstcommandsCheckyourdockerversion
dockerversion
Checktheavailabledockeroptions
docker
Yourfirsthello-worldcontainer
dockerrunhello-world
Thispullstheimagehello-world:latestifitisn'tfoundlocally
Runcommandsinacontainerecho"helloworld"
dockerrundebianecho"helloworld"
interactiveshell
dockerrun-itdebianbash#cat/etc/debian_version
BasicDockerCommands
ImagemanagementSearchimagefooonDockerHub
dockersearchfoo
Downloadimagebar
dockerpullbar
Listlocalimages
dockerimages
Deleteimagebazlocally
dockerrmibaz
ImagetagsDownloadimagefoowithtagbar
dockerpullfoo:bar
Deleteimagefoowithtagbarlocally
dockerrmifoo:bar
Rename/retaganimage
dockertagexampleexample:stable
ImagerepositoriesDownloadtheimagebarfromtherepositoryfoo
dockerpullfoo/bar
Pullanimagefromtheregistryexample.com
dockerpullexample.com/foo/bar
Pushanimagetotheregistryexample.com
dockerpushexample.com/foo/bar
ContainermanagementStartacontainerfromtheimagefoo
dockerrunfoo
Startacontainerinthebackground
dockerrun-dfoo
Showrunningcontainers
dockerps
Showlogsfromacontainer
dockerlogs-f$CONTAINER_ID
ContainermanagementShowprocessesrunninginacontainer
dockertop$CONTAINER_ID
Stoparunningcontainer
dockerstop$CONTAINER_ID
Killarunningcontainer
dockerkill$CONTAINER_ID
Deleteacontainer
dockerrm$CONTAINER_ID
ExposedportmanagementExposeacontainerportonthehost
dockerrun-p8080:80nginx
Exposeallconfiguredportsonrandomportsonthehost
dockerrun-Pnginx
Showexposedportsofacontainer
dockerport$CONTAINER_ID
InteractiveshellsincontainersRunainteractiveshellinacontainer
dockerrun-itfoo/bin/bash
Startainteractiveshellinarunningcontainer
dockerexec-it$CONTAINER_ID/bin/bash
AdvancedDockercommands
NameacontainerTooverridetheautomaticallygeneratednamesyoucanspecifyanameontheCLI
dockerrun--namenginx_proxynginx
DeletecontaineronexitTheoption --rm deletesthecontaineronexit
dockerrun--rmcentosyumlistinstalled
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