LOPSA SD Monthly Meeting : An Evening with Docker

Docker's been on a meteoric rise since it's initial release in Mar 2013. It's now the most common way to interact with Linux containers. It wraps up a fast and lightweight mechanism for deploying applications across Linux distributions.

This month, we have two talks about Docker.

Mac McEniry is going to be talking about Docker basics - what it is, what it's philosophy is, how to use it, and what's underneath the hood.

Tony Su will then demo using Docker application containers to deploy and manage a live multi-node cluster of Elasticsearch, Redis, and Logstash."

About our speakers:

  • Chris McEniry
    • Sysadmin
    • Tinkerer
  • Tony Su
    • Sr Network Administrator and Architect
    • Su Network Consulting
    • MCSE
    • openSUSE evangelist and ambassador
    • Elasticsearch Big Data Search and Analytics
    • 10+ years CIO/CTO various startups



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  • Tony S.

    Thx all for attending LOPSA last night.
    Although I didn't prepare any slides to go along with the "hands on" if anyone is interested in first steps with Docker, I semi-maintain a wiki at openSUSE where I post technical articles on various things... Recent Docker articles include
    Install Docker on openSUSE
    Access a Docker Container Console
    Docker- Build a Custom Docker Image for your own use

    If you're not running openSUSE, you should be able to run almost everything in those articles with Docker installed on a different distro, or if you're running Windows you can install the "boot2docker" which is a full installation of Virtualbox with Docker or just install your choice of virtualization and openSUSE manually.

    August 29, 2014

  • Tom P.

    Folks, If you're planning to attend, I highly recommend RSVPing, so that I can get your name to the security folks ahead of time. That way they can pre-print your visitor badge, and you can avoid a longer sign in line.

    August 25, 2014

    • Ben P.

      I have two guests coming with me. Andy Lochner and Donna Dalton

      August 28, 2014

  • Tom P.

    The building entrance is on the North East corner of 10075. Due to Sony policy, there will be NDAs for everyone to sign. We'll discuss this briefly during the meeting.

    August 28, 2014

  • Brad B.

    Is there a location for this meeting?

    August 14, 2014

    • David M.

      Is that the old AT&T datacenter?

      1 · August 26, 2014

    • Tom P.

      Close, but no cigar. The meeting is in the 10075 building, which is farther east, of Barnes Canyon road, not Scranton.

      August 26, 2014

  • Brad B.

    Apropos for this week's meeting:

    IBM just released a paper comparing the performance of Docker and KVM:

    They’ve also published the scripts so you can repeat the tests:

    Article on TheReg here:

    August 26, 2014

  • Jason C.

    Since we are on the subject of Docker with this months meetup, I thought I would share this article on Docker security using everyones favorite tool, SELinux.


    August 8, 2014

    • Jason C.

      Thought I would add some more info to my post... Some good info from the article:
      "The biggest problem is everything in Linux is not namespaced. Currently, Docker uses five namespaces to alter processes view of the system: Process, Network, Mount, Hostname, Shared Memory."...

      "Major kernel subsystems are not namespaced like:
      file systems under /sys
      /proc/sys, /proc/sysrq-trigger, /proc/irq, /proc/bus

      Devices are not namespaced:
      /dev/sd* file system devices
      Kernel Modules

      If you can communicate or attack one of these as a privileged process, you can own the system."

      You really need to watch the video presentation to really get to good info. The good meat starts at about 19:57 (not that the first parts are not good to watch) https://www.youtube.co...­

      August 8, 2014

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