WittyPi power management board with a RPi3 docker container

Product support
3

Hey @hedley ,
Here is the docker file we’re using

# base-image for python on any machine using a template variable,
# see more about dockerfile templates here:http://docs.resin.io/pages/deployment/docker-templates
FROM resin/%%RESIN_MACHINE_NAME%%-python

# use apt-get if you need to install dependencies,
# for instance if you need ALSA sound utils, just uncomment the lines below.
RUN apt-get update && apt-get --assume-yes install python3-gpiozero python-gpiozero sshfs python-dev libzmq3-dev rsync sshpass unzip

# Install bridging depeendencies
RUN apt-get install -yq --no-install-recommends \
      parprouted dhcp-helper avahi-daemon avahi-daemon avahi-utils libnss-mdns

# For Avahi, DNS and DBUS
RUN apt-get --assume-yes install avahi-daemon avahi-utils libnss-mdns dbus

# For Paramiko
RUN apt-get --assume-yes install libssl-dev libffi6 libffi-dev

# OpenSSH
RUN apt-get update && apt-get install -yq --no-install-recommends \
    openssh-server && \
    apt-get clean && rm -rf /var/lib/apt/lists/*


# here we set up the config for openSSH.
RUN mkdir /var/run/sshd \
    && echo 'root:resin' | chpasswd \
    && sed -i 's/PermitRootLogin without-password/PermitRootLogin yes/' /etc/ssh/sshd_config \
    && sed -i 's/UsePAM yes/UsePAM no/' /etc/ssh/sshd_config

# Set our working directory
WORKDIR /usr/src/app

# Install bridging depeendencies
COPY ./resources/dhcp-helper /etc/default/dhcp-helper
COPY ./resources/avahi-daemon.conf /etc/avahi/avahi-daemon.conf

# Copy requirements.txt first for better cache on later pushes
COPY ./requirements.txt /requirements.txt

# pip install python deps from requirements.txt on the resin.io build server
RUN pip install -r /requirements.txt


# Install Witty Pi
COPY ./resources/install_witty.sh /install_witty.sh
RUN chmod +x /install_witty.sh
RUN  (cd / && ./install_witty.sh)

# This will copy all files in our root to the working  directory in the container
COPY . ./

# Set our working directory
WORKDIR /usr/src/app/src

# switch on systemd init system in container
ENV INITSYSTEM on

# Start the main app
CMD ["./start.sh"]

Witty Pi Install Script:

#!/usr/bin/env bash
[ -z $BASH ] && { exec bash "$0" "$@" || exit; }
#!/bin/bash
# file: installWittyPi.sh
#
# This script will install required software for Witty Pi.
# It is recommended to run it in your home directory.
#

# check if sudo is used
if [ "$(id -u)" != 0 ]; then
  echo 'Sorry, you need to run this script with sudo'
  exit 1
fi

# target directory
DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )/wittyPi"

# error counter
ERR=0

echo '================================================================================'
echo '|                                                                              |'
echo '|                   Witty Pi Software Installing Script                        |'
echo '|                                                                              |'
echo '================================================================================'

# enable I2C on Raspberry Pi
echo '>>> Enable I2C'
if grep -q 'i2c-bcm2708' /etc/modules; then
  echo 'Seems i2c-bcm2708 module already exists, skip this step.'
else
  echo 'i2c-bcm2708' >> /etc/modules
fi
if grep -q 'i2c-dev' /etc/modules; then
  echo 'Seems i2c-dev module already exists, skip this step.'
else
  echo 'i2c-dev' >> /etc/modules
fi
if grep -q 'dtparam=i2c1=on' /boot/config.txt; then
  echo 'Seems i2c1 parameter already set, skip this step.'
else
  echo 'dtparam=i2c1=on' >> /boot/config.txt
fi
if grep -q 'dtparam=i2c_arm=on' /boot/config.txt; then
  echo 'Seems i2c_arm parameter already set, skip this step.'
else
  echo 'dtparam=i2c_arm=on' >> /boot/config.txt
fi
if grep -q 'dtoverlay=pi3-miniuart-bt' /boot/config.txt; then
  echo 'Seems setting Pi3 Bluetooth to use mini-UART is done already, skip this step.'
else
  echo 'dtoverlay=pi3-miniuart-bt' >> /boot/config.txt
fi
if grep -q 'core_freq=250' /boot/config.txt; then
  echo 'Seems the frequency of GPU processor core is set to 250MHz already, skip this step.'
else
  echo 'core_freq=250' >> /boot/config.txt
fi
if [ -f /etc/modprobe.d/raspi-blacklist.conf ]; then
  sed -i 's/^blacklist spi-bcm2708/#blacklist spi-bcm2708/' /etc/modprobe.d/raspi-blacklist.conf
  sed -i 's/^blacklist i2c-bcm2708/#blacklist i2c-bcm2708/' /etc/modprobe.d/raspi-blacklist.conf
else
  echo 'File raspi-blacklist.conf does not exist, skip this step.'
fi

# install i2c-tools
echo '>>> Install i2c-tools'
if hash i2cget 2>/dev/null; then
  echo 'Seems i2c-tools is installed already, skip this step.'
else
  apt-get install -y i2c-tools || ((ERR++))
fi

# install wiringPi
if [ $ERR -eq 0 ]; then
  echo '>>> Install wiringPi'
  if hash gpio 2>/dev/null; then
    echo 'Seems wiringPi is installed already, skip this step.'
  else
    if hash git 2>/dev/null; then
      echo "Git is ready to go..."
    else
      echo "Git is missing, install it now..."
      apt-get install -y git || ((ERR++))
    fi
    if [ $ERR -eq 0 ]; then
      git clone git://git.drogon.net/wiringPi || ((ERR++))
      cd wiringPi
      ./build
      cd ..
    fi
  fi
fi

# install wittyPi
if [ $ERR -eq 0 ]; then
  echo '>>> Install wittyPi'
  if [ -f wittyPi ]; then
    echo 'Seems wittyPi is installed already, skip this step.'
  else
    wget http://www.uugear.com/repo/WittyPi/LATEST -O wittyPi.zip || ((ERR++))
    unzip wittyPi.zip -d wittyPi || ((ERR++))
    cd wittyPi
    chmod +x wittyPi.sh
    chmod +x daemon.sh
    chmod +x syncTime.sh
    chmod +x runScript.sh
    sed -e "s#/home/pi/wittyPi#$DIR#g" init.sh >/etc/init.d/wittypi
    chmod +x /etc/init.d/wittypi
    update-rc.d wittypi defaults
    cd ..
    sleep 2
    rm wittyPi.zip
  fi
fi

echo
if [ $ERR -eq 0 ]; then
  echo '>>> All done. Please reboot your Pi :-)'
else
  echo '>>> Something went wrong. Please check the messages above :-('
fi

Thanks!