Revision as of 17:39, 9 April 2020

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 var-image-docker (for the rootfs to be installed on the eMMC)

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

@@ Line 32: / Line 32: @@
 }}
- $ bitbake fsl-image-gui      (for the recovery SD card)
+  $ bitbake var-image-docker (for the rootfs to be installed on the eMMC)
-  $ bitbake var-image-swupdate (for the rootfs to be installed on the eMMC)
-* Create the "SWUpdate recovery SD card"
- $ sudo MACHINE={{#var:MACHINE_NAME}} ../sources/meta-variscite-{{#varexists: FSLC_BSP_VERSION |fslc|imx}}/scripts/var_mk_yocto_sdcard/var-create-yocto-sdcard.sh -r tmp/deploy/images/{{#var:MACHINE_NAME}}/var-image-swupdate-{{#var:MACHINE_NAME}} /dev/sdX
- (Replace /dev/sdX with your actual device)
-* Boot the board using the created SD card. See more info {{Varlink|Yocto Build Release#Boot_the_board_with_a_bootable_SD_card|{{#var:RELEASE_LINK}}|here}}.
-* Install the demo image to the eMMC{{#ifeq: {{#var:SOC_SERIES}} | imx8 |&nbsp;using|. 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 {{#ifeq: {{#var:SOC_SERIES}} | imx8||manually,}} with the "-u" parameter.
-{{Note|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) ==

Docker Guide: Difference between revisions