96Boards OpenHours Session 6 Recap


96Boards OpenHours session six the topic was “Installing Docker on aarch64 with the Reference Platform Build on a 96Boards CE-edition. To watch this weeks’ session go to: https://www.youtube.com/watch?v=lvv7CbXOHtw

Below is an overview of what was discussed including the time in the video where this topic was discussed.

The first topic was a recap of last week’s session:

Our fifth 96Boards OpenHours session the team discussed in more detail enabling the GPIO libraries on 96Boards.  To watch this weeks’ session go to: https://www.youtube.com/watch?v=fbTo3BwURg8&feature=em-subs_digest

This week: (begins at 2:02)  — To watch this weeks’ session go to:  https://www.youtube.com/watch?v=lvv7CbXOHtw

  • Today’s guest speaker is Bill Fletcher who is a manager in Linaro’s Marketing and EMEA Field Engineering. He gave a talk on installing Docker on one of the 96Boards consumer editions.

  • Discussed Qualcomm workshop and presentation that Robert gave during the workshop

    • Shared screen and gave a quick recap of his presentation

    • Overview on Linaro and 96Boards

    • Overview of DragonBoard 410c

    • Software cores that are available

    • Available documentation and sample code

    • Fastboot mode

    • USB Debugging

    • Expansion headers

    • Board Layout

    • Different Mezzanine boards available

  • 14:58 – Question – Does DragonBoard 410c have a sleep capability to get more out of your batteries?

  • 17:30 – Question – It would be nice if 96boards spec allowed option for USB 3.0 – is that going to be available on the high speed expansion connectors?

  • 21:54 – Bill Fletcher begins talk on Docker on aarch64 (see his blog for more details: https://www.96boards.org/blog/installing-docker-aarch64-96boards-ce/ )

    • Docker is “an open source project to pack, ship and run any application as a lightweight container.”

    • Talks about Enterprise software and how it relates to Docker

    • Docker is widely supporter both on 64bit and 32bit

    • 3 elements that make-up Docker

      • Client – command line interface

      • Demon – does building and distributing

      • Remote registry – external repository of Docker images

    • Some key facts:

      • An image is a read only file – i.e. a template

      • A container is a running instance of an image and can run many containers of same image

    • 3 sources for where images come from

      • Can be preexisting images from ones you download

      • Create an image by modifying an existing image and then uploading it

      • Create an existing file system and import into Docker

    • 30:08 - Why run it on Dragonboard or HiKey?

      • Bill goes through several reasons why this works well on these boards and examples when it might be a good option
    • 34:03 – Question - What is the difference between running Docker and a VMware?

    • 36:13 – Question - Can a container access GPIO’s?

    • Bill then speaks about hardware access in more detail to answer this question

    • 42:32 – Question – What is the impact on performance on any application inside a container and running directly?

    • The session ended with Bill mentioning that he will be attending the next session to answer any further follow-up questions

  • Bill wrote a great blog that goes through how to get Docker up and running that you can check out here: https://www.96boards.org/blog/installing-docker-aarch64-96boards-ce/

Be sure to stay tune in next week  https://www.96boards.org/openhours/

Please remember, if you get stuck, there are resources to help you through the installation. Feel free to check out the 96Boards forums, 96Boards wiki, or Freenode IRC channel #96boards (there are many ways to access IRC, this website is one of them). Dig around the wiki, create a new forum thread, and/or post a question in the chat.

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