Docker Introduction

<https://www.digitalocean.com/community/tutorials/how-to-install-and-use-docker-on-debian-9> Docker is an application that simplifies the process of managing application processes in containers.
Containers let you run your applications in resource-isolated processes. They’re similar to virtual machines, but containers
are more portable, more resource-friendly, and more dependent on the host operating system.

For a detailed introduction to the different components of a Docker container, check out The Docker Ecosystem: An Introduction to
Common Components.

You can check SWUpdate's online documentation at: http://sbabic.github.io/swupdate
This Introduction was taken from the SWUpdate README.md at: https://github.com/sbabic/swupdate

Yocto Integration

Recipes

Before you begin, get familiar with the Varicite Yocto Build Release guide.

Variscite provides the following image recipes:

var-image-docker - Based on fsl-image-core with the following differences:
- xxxxxxxxxxxxxx

Create a Docker-ready Image

Follow steps 1-3 of the Yocto Build Release page.
Build a recovery SD card and the var-image-swupdate image as the recovery image

$ cd 
$ MACHINE= DISTRO=

$ bitbake fsl-image-gui      (for the recovery SD card)
$ bitbake var-image-swupdate (for the rootfs to be installed on the eMMC)

Create the "SWUpdate recovery SD card"

$ sudo MACHINE= ../sources/meta-variscite-imx/scripts/var_mk_yocto_sdcard/var-create-yocto-sdcard.sh -r tmp/deploy/images//var-image-swupdate- /dev/sdX
(Replace /dev/sdX with your actual device)

Boot the board using the created SD card. See more info here.
Install the demo image to the eMMC. Either use the installation icons on the desktop (which will be updated with the "-u" parameter by the var-create-yocto-sdcard.sh script, when the recovery image used is var-image-swupdate), or use the install_yocto.sh script manually, with the "-u" parameter.

When called with the "-u" parameter, the install_yocto.sh script creates the double-copy compatible layout as shown above

Generate a Field Update file (.swu image)

Make your changes in
Edit the sw-description file
Generate .swu file:

$ bitbake var-image-swu

Test SWUpdate

Get the target's IP address using ifconfig
Open a web browser on the host and connect to the SWUpdate web server on the target by entering the following in the address bar:

http://<target_ip>:8080

On the web page, click "Browse..." and open the .swu image which is located at tmp/deploy/images//var-image-swu-.swu

Docker Guide

Contents