diff --git a/setup/debian11_setup.sh b/setup/debian11_setup.sh new file mode 100644 index 00000000..0bca50d1 --- /dev/null +++ b/setup/debian11_setup.sh @@ -0,0 +1,61 @@ +#!/usr/bin/env bash + +# Setup script environment +set -o errexit #Exit immediately if a pipeline returns a non-zero status +set -o errtrace #Trap ERR from shell functions, command substitutions, and commands from subshell +set -o nounset #Treat unset variables as an error +set -o pipefail #Pipe will exit with last non-zero status if applicable +shopt -s expand_aliases +alias die='EXIT=$? LINE=$LINENO error_exit' +trap die ERR +trap 'die "Script interrupted."' INT + +function error_exit() { + trap - ERR + local DEFAULT='Unknown failure occured.' + local REASON="\e[97m${1:-$DEFAULT}\e[39m" + local FLAG="\e[91m[ERROR:LXC] \e[93m$EXIT@$LINE" + msg "$FLAG $REASON" + exit $EXIT +} +function msg() { + local TEXT="$1" + echo -e "$TEXT" +} + +# Prepare container OS +msg "Setting up container OS..." +sed -i "/$LANG/ s/\(^# \)//" /etc/locale.gen +locale-gen >/dev/null +apt-get -y purge openssh-{client,server} >/dev/null +apt-get autoremove >/dev/null + +# Update container OS +msg "Updating container OS..." +apt update &>/dev/null +apt-get -qqy upgrade &>/dev/null + +# Install prerequisites +msg "Installing prerequisites..." +apt-get -qqy install \ + curl \ + sudo &>/dev/null + +# Customize container +msg "Customizing container..." +rm /etc/motd # Remove message of the day after login +rm /etc/update-motd.d/10-uname # Remove kernel information after login +touch ~/.hushlogin # Remove 'Last login: ' and mail notification after login +GETTY_OVERRIDE="/etc/systemd/system/container-getty@1.service.d/override.conf" +mkdir -p $(dirname $GETTY_OVERRIDE) +cat << EOF > $GETTY_OVERRIDE +[Service] +ExecStart= +ExecStart=-/sbin/agetty --autologin root --noclear --keep-baud tty%I 115200,38400,9600 \$TERM +EOF +systemctl daemon-reload +systemctl restart $(basename $(dirname $GETTY_OVERRIDE) | sed 's/\.d//') + +# Cleanup container +msg "Cleanup..." +rm -rf /debian11_setup.sh /var/{cache,log}/* /var/lib/apt/lists/*