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jbfink/c4l-docker-outline.md

Created February 3, 2014 18:40
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C4L Article
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c4l-docker-outline.md

Docker c4lib journal article, draft due Feb 14th.

Copyright CC-BY (http://creativecommons.org/licenses/by/2.0/ca/) John Fink ([email protected])

  • Recent history of virtualization
  • Data centre shrinkage
  • Rise of AWS et. al (although AWS shrinking??)

Virtualization

  • Machine level

    • vbox/xen/kvm etc

  • Operating System Level

    • Chroots
      • Chromebook's crappy chroot even
    • Sun's thing?
    • FreeBSD jail
    • Linux Vserver

When is machine level good and when is OS level good?

  • Machine level

    • When you need to emulate other cores from native
      • ex. ARM on X86, other things
      • Kernel differences on same architecture
      • WHen you have oodles of ram and disk space
      • as-complete-as-possible emulation (multiple services, etc)

  • Process level

    • Speed. Efficiency. Portability. Etc.

  • Components of Docker

    • 64 bit linux
    • lxc
    • cgroups

  • Metaphors of Docker

    • The Container

  • Docker Examples

    • Possible applications
    • Docker Index
    • etc

  • Anatomy of a Docker Image: Docker-Wordpress

    • Dockerfile
      • Parallels to Ansible/Chef/Puppet et al
    • start.sh
    • Foreground/Supervisord
      • apache
      • mysql
      • sshd

  • Future of Docker?

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