#!/bin/sh set -e case "$1" in abort-upgrade|abort-remove|abort-deconfigure|configure) ;; triggered) if [ -x /etc/init.d/nginx ]; then if [ -s /run/nginx.pid ] && pidof /usr/sbin/nginx >/dev/null; then echo "Triggering nginx reload ..." invoke-rc.d nginx reload || true fi fi exit 0 ;; *) echo "postinst called with unknown argument \`$1'" >&2 exit 1 ;; esac if [ -x /etc/init.d/nginx ]; then if [ -f /run/nginx.pid ] && pidof /usr/sbin/nginx >/dev/null; then invoke-rc.d nginx upgrade || invoke-rc.d nginx restart exit $? else if [ -z "$(ss -nlt 'sport = 80' | grep -v ^State)" ]; then invoke-rc.d nginx start || exit $? else echo "Not attempting to start NGINX, port 80 is already in use." exit 0 fi fi fi exit 0