Docker 101

Introduction to Docker for Softwarekskammer Lübeck (in german)

Transcript

1. Docker 101
   Mario David | @mariomddavid
   

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2. Mario
   

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3. What’s the problem? #1
   ssh mario@db-production-01.it.companyWithoutDocker.com
   # …
   db2 create tools catalog catalog1 use existing tablespace
   user32Ksp in database toolsdb
   

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4. What’s the problem? #1
   Cofiguration drift
   Reproduzierbarkeit
   ssh mario@db-production-01.it.companyWithoutDocker.com
   # …
   db2 create tools catalog catalog1 use existing tablespace
   user32Ksp in database toolsdb
   

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5. What’s the problem? #2
   ssh mario@tomcat-production-01.it.companyWithoutDocker.com
   # …
   vi /usr/local/tomcat/conf/server.xml
   # …
   tomcat7 restart
   

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6. What’s the problem? #2
   Sicherheit
   ssh mario@tomcat-production-01.it.companyWithoutDocker.com
   # …
   vi /usr/local/tomcat/conf/server.xml
   # …
   tomcat7 restart
   

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7. What’s the problem? #3
   HTTP
   Reverse Proxy
   DB
   DB
   SAN
   Logging
   Backup
   Switch
   DNS
   HTTP
   USV
   Monitoring
   www.katzenfreunde-forum.de
   

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8. What’s the problem? #3
   HTTP
   Reverse Proxy
   DB
   DB
   www.katzenfreunde-forum.de
   DNS
   HTTP
   Auslastung
   SAN
   Logging
   Backup
   Switch
   USV
   Monitoring
   

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9. Lösungen
   

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10. Hypervisor
    App
    OS
    App
    OS
    App
    OS
    

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12. “It’s all about the application...”
    Würden wir die Anwendung ohne OS laufen lassen?
    

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13. bit.ly/docker-einfuehrung
    Thread Prozess Container VM Hardware
    Pro Maschine Performance
    -
    +
    Isolation
    +
    -
    

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14. Was ist Docker? - Beispiel für Container-Virtualisierung
    Solaris Zones
    OpenVZ
    LPAR
    ...eigentlich nur eine alte Idee: Segmentierung
    Marketing Technogisch
    lightweight Hypervisor VM shared Linux Kernel
    Isolation Namespaces
    Ouality of Service Cgroups
    FreeBSD Jails
    LXC
    OS
    App
    Userspace
    App
    Userspace
    App
    Userspace
    

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15. Was ist Docker? - Zur rechten Zeit am rechten Ort
    Accessibility
    Cloud
    DevOps
    Docker Hub
    Community
    

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16. Docker Engine
    ●
    zentrale Laufzeitumgebung der Container
    ●
    ist einzige Abhängigkeit des Service
    ●
    ermöglicht Portabilität
    ●
    no Emulation Layer
    →
    ~ no Performace Impact
    Dev == Test == Staging == Production
    

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17. “
    Talk is cheap, show me the code
    

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18. Ökosystem
    Development
    bit.ly/docker-oekosystem
    Orchestrierung
    Docker Machine
    Kubernetes
    Docker Swarm
    Docker Comopse
    Mesossphere
    Panamax
    Vagrant
    Windows Nano Server
    OS
    CoreOS VMWare Photon
    Snappy Ubuntu Core Cloud
    Amazon AWS ECS
    Rackspace
    Azure
    Google Compute Engine
    Hypriot
    ...
    ...
    ...
    ...
    

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19. weitere Ressourcen...
    bit.ly/docker-einfuehrung | bit.ly/docker-oekosystem
    road-to-cuba-and-beyond.com/put-a-island-into-a-box-how-to-dockerize-your-cuba-app/
    pluralsight.com/courses/docker-deep-dive
    pluralsight.com/courses/docker-fundamentals
    

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