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Builds a custom Raspbian Lite image for Azure IoT Edge
#!/bin/bash
# echo "$pass" | sudo -S ./build.sh
# echo "$pass" | sudo -S ./build.sh --clean
# Builds a Raspbian lite image with some customizations include default locale, username, pwd, host name, boot setup customize etc.
# Must be run on Debian Buster or Ubuntu Xenial and requires some "horsepower".
SECONDS=0
clean=false
while [[ $# -ge 1 ]]; do
i="$1"
case $i in
-c|--clean)
clean=true
shift
;;
*)
echo "Unrecognized option $1"
exit 1
;;
esac
shift
done
read -r -t 2 -d $'\0' pi_pwd
if [ -z "$pi_pwd" ]; then
echo "Pi user password is required (pass via stdin)" >&2
exit 1
fi
# Script is in /boot/setup, switch to non-root pi-gen path per install script. Assuming default pi user.
pushd /home/pi/pi-gen
# setup environment variables to tweak config. SD card write script will prompt for WIFI creds.
cat > config <<EOL
export IMG_NAME=edge-raspbian
export RELEASE=buster
export DEPLOY_ZIP=1
export LOCALE_DEFAULT=en_US.UTF-8
export TARGET_HOSTNAME=edge-dev-pi
export KEYBOARD_KEYMAP=us
export KEYBOARD_LAYOUT="English (US)"
export TIMEZONE_DEFAULT=America/New_York
export FIRST_USER_NAME=iot
export FIRST_USER_PASS="${pi_pwd}"
export ENABLE_SSH=1
EOL
# Skip stages 3-5, only want Raspbian lite
touch ./stage3/SKIP ./stage4/SKIP ./stage5/SKIP
touch ./stage4/SKIP_IMAGES ./stage5/SKIP_IMAGES
pushd stage2
# don't need NOOBS
rm -f EXPORT_NOOBS || true
# ----- Begin Stage 02, Step 04 - IoT Edge Install Prereqs Step -----
step="04-edge-install-prereq"
if [ -d "$step" ]; then rm -Rf $step; fi
mkdir $step && pushd $step
cat > 00-run-chroot.sh <<RUN
#!/bin/bash
echo "Installing repository configuration"
curl https://packages.microsoft.com/config/debian/stretch/multiarch/prod.list > ./microsoft-prod.list
cp -v ./microsoft-prod.list /etc/apt/sources.list.d/
rm -v -f ./microsoft-prod.list
echo "Installing the Microsoft GPG public key"
curl https://packages.microsoft.com/keys/microsoft.asc | gpg --dearmor > microsoft.gpg
cp -v ./microsoft.gpg /etc/apt/trusted.gpg.d/
rm -v -f microsoft.gpg
echo "Update package lists"
apt-get update
RUN
chmod +x 00-run-chroot.sh
cat > 01-packages <<RUN
moby-engine moby-cli libssl1.0.2
RUN
popd
# ----- End Stage 02, Step 04 - IoT Edge Install Prereqs Step -----
# ----- Begin Stage 02, Step 05 - IoT Edge Install Step -----
step="05-edge-install"
if [ -d "$step" ]; then rm -Rf $step; fi
mkdir $step && pushd $step
cat > 01-packages <<RUN
iotedge
RUN
popd
# ----- End Stage 02, Step 05 - IoT Edge Install Step -----
popd # stage 02
# run build
if [ "$clean" = true ] ; then
echo "Running build with clean to rebuild last stage"
CLEAN=1 ./build.sh
else
echo "Running build"
./build.sh
fi
exitCode=$?
duration=$SECONDS
echo "Build process completed in $(($duration / 60)) minutes"
if [ $exitCode -ne 0 ]; then
echo "Custom Raspbian lite build failed with exit code ${exitCode}" ; exit -1
fi
ls ./deploy
# On another machine, copy generated zip over:
# scp 'pi@raspberrypi.local:~/pi-gen/deploy/*zip' ~/temp
#
# Then run sd-card-write-mac.sh to write that image to SD card for PI use.
# Finally store / upload image to artifact repository (Nexus, Proget etc.)
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