chroot-script.sh

#! /usr/bash 
set -ex

### configure Debian Jessie base ###

# use standard Debian apt repositories
tee /etc/apt/sources.list << EOF
deb http://httpredir.debian.org/debian jessie main
deb-src http://httpredir.debian.org/debian jessie main

deb http://httpredir.debian.org/debian jessie-updates main
deb-src http://httpredir.debian.org/debian jessie-updates main

deb http://security.debian.org/ jessie/updates main
deb-src http://security.debian.org/ jessie/updates main
EOF

# upgrade to latest Debian package versions
apt-get update
apt-get upgrade -y


### configure network and systemd services ###

# set ethernet interface eth0 to dhcp
tee /etc/systemd/network/eth0.network << EOF
[Match]
Name=eth0

[Network]
DHCP=yes
EOF

# enable networkd
systemctl enable systemd-networkd

# configure and enable resolved
ln -sfv /run/systemd/resolve/resolv.conf /etc/resolv.conf
DEST=$(readlink -m /etc/resolv.conf)
mkdir -p $(dirname $DEST)
touch /etc/resolv.conf
systemctl enable systemd-resolved

# enable ntp with timesyncd
sed -i 's|#Servers=|Servers=|g' /etc/systemd/timesyncd.conf
systemctl enable systemd-timesyncd

# set default locales to 'en_US.UTF-8'
echo 'en_US.UTF-8 UTF-8' >> /etc/locale.gen
locale-gen

echo 'locales locales/default_environment_locale select en_US.UTF-8' | debconf-set-selections
dpkg-reconfigure -f noninteractive locales


### HypriotOS default settings ###

# set hostname
echo "$HYPRIOT_HOSTNAME" > /etc/hostname

# install Hypriot group and user
addgroup --system --quiet $HYPRIOT_GROUPNAME
useradd -m $HYPRIOT_USERNAME --group $HYPRIOT_GROUPNAME --shell /bin/bash
echo "$HYPRIOT_USERNAME:$HYPRIOT_PASSWORD" | /usr/sbin/chpasswd

# add user to sudoers group
echo "$HYPRIOT_USERNAME ALL=NOPASSWD: ALL" > /etc/sudoers.d/user-$HYPRIOT_USERNAME
chmod 0440 /etc/sudoers.d/user-$HYPRIOT_USERNAME

# set HypriotOS version infos
echo "HYPRIOT_OS=\"HypriotOS/${BUILD_ARCH}\"" >> /etc/os-release
echo "HYPRIOT_TAG=\"${HYPRIOT_TAG}\"" >> /etc/os-release