This page will guide you through publishing your DAC app to the RDK ASMS cloud, then installing and running it on a Raspberry Pi (RPI). More detailed documentation of all the components used is available on their respective pages.

You will need

• Raspberry Pi (RPI) 3B/3B+ or RPI 4
• Balena Etcher to write the Raspberry Pi SD card: https://www.balena.io/etcher/
• (lib32-)rdk-generic-mediaclient-image built for you RPI
• Your own built DAC app: you only need the OCI image (.tar) and not a generated bundle (.tar.gz). See this wiki page. Not needed if you only want to install and run other people's published DAC apps.

Prepare your RPI

We will be installing and running DAC apps on the RPI so we need a good host image. The most recent RDK6 mediaclient image is ideal for this.

Build the mediaclient image for your RPI

The below commands must be run in an Ubuntu 18.04 environment with the necessary pre-requisites installed to run Bitbake. See here for the exact dependencies needed:
https://docs.yoctoproject.org/ref-manual/system-requirements.html#ubuntu-and-debian

For RPI3:

mkdir rpi3_mediaclient_nosrc_rdk6
cd rpi3_mediaclient_nosrc_rdk6

# Install 'repo' tool from: https://android.googlesource.com/tools/repo
repo init --no-clone-bundle -u https://code.rdkcentral.com/r/manifests -b 6.0.0-rc3 -m rdkv-nosrc.xml
repo sync --no-clone-bundle -j$(getconf _NPROCESSORS_ONLN)

MACHINE=raspberrypi-rdk-mc source meta-cmf-raspberrypi/setup-environment
bitbake rdk-generic-mediaclient-image

For RPI4:

mkdir rpi4_mediaclient_nosrc_rdk6
cd rpi4_mediaclient_nosrc_rdk6

# Install 'repo' tool from: https://android.googlesource.com/tools/repo
repo init --no-clone-bundle -u https://code.rdkcentral.com/r/manifests -b 6.0.0-rc3 -m rdkv-nosrc.xml
repo sync --no-clone-bundle -j$(getconf _NPROCESSORS_ONLN)

MACHINE=raspberrypi4-64-rdk-android-mc source meta-cmf-raspberrypi/setup-environment
bitbake lib32-rdk-generic-mediaclient-image

Flash it

• Find and download the .wic.bz2 file from your build: find tmp/deploy/ -name *.wic.bz2
• Flash it to the Raspberry Pi's SD card using Etcher. In principle it can handle a wic.bz2 directly but sometimes this doesn't work great. Unzipping it first can help: bzip2 -df xxx.wic.bz2
• Resize the SD card using gParted so that the main ext3 partition is at least 2GB in size so that is has enough room to download and install all the apps you need
• Insert the SD card back in the RaspberryPi and power up the Pi. Connect the Raspberry Pi to your network with an ethernet cable, and to your TV with a HDMI cable.
• Make sure you can SSH into the Pi as this is important for later. The default user is root with no password
• You should see the RDK Resident GUI application on your TV at bootup (after following some initial setup questions)

Configure ASMS

After boot-up you need to manually configure ASMS and the version+platform of your host:

1. on your RPI, create the file /opt/appmanagerregistry.conf
2. add the contents below to it in case you are using an RPI4.

{
  "app-catalog-cloud": {
    "url": "http://asms-api-1852129899.eu-central-1.elb.amazonaws.com:8080/apps",
    "firmwareVersions": [
      {
        "platform": "rpi4",
        "ver": "1.0.0-e71889dc02521bfdc2f9f38f750b34224184c375-dbg"
      }
    ]
  }
}

For RPI3 you need a different platform and ver:

{
  "app-catalog-cloud": {
    "url": "http://asms-api-1852129899.eu-central-1.elb.amazonaws.com:8080/apps",
    "firmwareVersions": [
      {
        "platform": "rpi3",
        "ver": "1.0.0-f4b0603d7d93dfa10ed932ddb0f324d334bc40f9-dbg"
      }
    ]
  }
}

The "ver" value can change sometimes when new features are added to DAC or when big platform changes happen. You can find the latest values in the dactest.py tool, also for other platforms.

Publish your DAC app

If you don't want to test or publish your own DAC app then you can skip this step and tries the already published demo apps in the next section.

Install and run your DAC app from ASMS

There are two ways to install and run a DAC app from ASMS:

1. using the RDK Resident GUI
2. using the dactest.py test tool