Expose port for privoxy running on nspawn container

expose-privoxy-port-on-nspawn

#!/bin/sh

CONTAINER_NAME="torspawn"
CONFIG_DIR="/etc/systemd/nspawn"
CONFIG_PREFIX="nspawn"
CONFIG_LOCATION="$CONFIG_DIR/$CONTAINER_NAME.$CONFIG_PREFIX"

INTERNAL="8118"
EXPOSING="58118"

# Wrong port already exposed: remove port configuration
grep $EXPOSING $CONFIG_LOCATION 1> /dev/null 2> /dev/null
EXPOSED_CORRECTLY=$?
if [ $EXPOSED_CORRECTLY -ne 0 ]; then
	sed -i $CONFIG_LOCATION -e '/[Pp]ort/d'
fi

egrep '[Pp]ort' $CONFIG_LOCATION 1> /dev/null 2> /dev/null
PORT_CONFIGURED=$?
if [ $PORT_CONFIGURED -ne 0 ]; then
	sed -i $CONFIG_LOCATION \
		-e 's/\(\[Network\]\)/\1\nPort='$EXPOSING':'$INTERNAL'/g' 
fi


if [ $EXPOSED_CORRECTLY -ne 0 ] || [ $PORT_CONFIGURED -ne 0 ]; then
	machinectl stop $CONTAINER_NAME
	sleep 5
	machinectl start $CONTAINER_NAME
fi

expose-privoxy-port-on-nspawn.makefile

NAME=expose-privoxy-port-on-nspawn

all: install

install: ${NAME} ${NAME}.service ${NAME}.timer
	install -D -m 755 ${NAME} /usr/local/bin/
	install -D -m 644 ${NAME}.service /etc/systemd/system/
	install -D -m 644 ${NAME}.timer /etc/systemd/system/
	systemctl daemon-reload
	systemctl enable ${NAME}.timer

uninstall:
	systemctl disable ${NAME}.timer
	rm -f /usr/local/bin/${NAME}
	rm -f /etc/systemd/system/${NAME}.service
	rm -f /etc/systemd/system/${NAME}.timer
	systemctl daemon-reload

expose-privoxy-port-on-nspawn.service

[Unit]
Description=Expose port for privoxy running inside nspawn container

[Service]
Type=oneshot
ExecStart=/usr/local/bin/expose-privoxy-port-on-nspawn

expose-privoxy-port-on-nspawn.timer

[Unit]
Description=Expose port for privoxy running inside nspawn container

[Timer]
OnBootSec=1min
OnUnitActiveSec=5min

[Install]
WantedBy=timers.target