init.sh

#!/usr/bin/env bash
#set -x
set -e

#############
# variables #
#############

# you will need to update some variables below
sd_card_name="$(mount |grep NAME | awk '{print $3" "$4}')"

# I use 32 GB SD cards so I cheated to get the device name
sd_card_device="/dev/$(diskutil list | egrep  '3.\.. GB.* disk.$' | awk '{print $5}')"


domainname="${DOMAIN_NAME:-local}"
hostname="${HOSTNAME}"
ip="${IP}"
ip_netmask="${IP_NETMASK:-255.255.255.0}"
ip_gateway="${IP_GATEWAY:-192.168.7.1}"
ip_nameservers="${NAMESERVER:-192.168.7.1}"

timezone="${TZ:-America/Toronto}"
wlan_country="${WLAN_COUNTRY:-CA}"

keyboard_layout="us"
locales="en_US.UTF-8,en_US,en_CA.UTF-8"
system_default_locale="en_CA.UTF-8"

packages="libnss-mdns,vim,sudo,curl,htop"

root_ssh_pubkey="${ROOT_SSH_PUBKEY}"

script="./$(basename $0)"

################
# Basic checks #
################

if [ -z ${HOSTNAME} ] || [ -z ${IP} ] || [ -z "${ROOT_SSH_PUBKEY}" ]; then
    echo "you need to export at least 3 variables."
    echo ""
    echo "Usage:"
    echo "export HOSTNAME=\"hostname\""
    echo "export IP=\"ip\""
    echo "ROOT_SSH_PUBKEY=\'PUBLIC KEY\'"
    echo "./$(basename $0)"
    exit 1
fi

if [ ! -d "${sd_card_name}" ]; then
    echo "error: ${sd_card_name} not found."
    echo "Check README.md for more info"
    exit 1
fi


########
# Main #
########

# create installer-config.txt
echo "create "${sd_card_name}"/raspberrypi-ua-netinst/config/installer-config.txt"
cat << EOF > "${sd_card_name}"/raspberrypi-ua-netinst/config/installer-config.txt
# install lots of usefull packages 
preset=server

# install additional packages
packages=${packages}

# Set to "1" to install common firmware packages (Atheros, Broadcom, Libertas, Ralink and Realtek).
firmware_packages=1

# add docker specifics (last 3 parameters)
cmdline="dwc_otg.lpm_enable=0 console=serial0,115200 console=tty1 elevator=deadline fsck.repair=yes cgroup_enable=cpuset cgroup_memory=1 cgroup_enable=memory"

timezone=${timezone}

hostname=${hostname}
domainname=${domainname}

wlan_country=${wlan_country}

ip_addr=${ip}
ip_netmask=${ip_netmask}
ip_gateway=${ip_gateway}
ip_nameservers=${ip_nameservers}
ip_ipv6=0

keyboard_layout=${keyboard_layout}
locales=${locales}
system_default_locale=${system_default_locale}

# 16 MB of shared memory
gpu_mem=16

root_ssh_pubkey="${root_ssh_pubkey}"

# vim: set ft=config:

EOF

# copy post installation command
echo ""
echo "copy post installation config file"
echo "cp post-install.txt "${sd_card_name}"/raspberrypi-ua-netinst/config/post-install.txt"
cp post-install.txt "${sd_card_name}"/raspberrypi-ua-netinst/config/post-install.txt

# eject card
echo ""
echo "eject ${sd_card_device}"
diskutil eject ${sd_card_device}

# last messages
echo ""
echo "All done."
echo ""
echo "Install the SD card in the Raspberry."
echo "Installation will take up to 10 minutes."
echo "you will be able to connect to ${hostname}.${domainname} using ssh:"
echo "  ssh -l root ${hostname}.${domainname}"
echo ""
echo "if using ssh key fail, you can use the default root password: raspbian"

# vim: set ft=sh: