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lxc-container-mailserver-start.sh
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#!/bin/sh
# -------------------------------------------------------------
# Nasqueron mail services
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
# Project: Nasqueron
# Created: 2015-12-16
# License: Trivial work, not eligible to copyright
# Source file: roles/mailserver/systemd-unit/files/lxc-container-mailserver-start.sh
# -------------------------------------------------------------
#
# <auto-generated>
# This file is managed by our rOPS SaltStack repository.
#
# Changes to this file may cause incorrect behavior
# and will be lost if the state is redeployed.
# </auto-generated>
#Let systemd launch a lxc mail container through
#/usr/lib/systemd/system/lxc-container-mailserver.service
#
#Start a lxc container, and create iptable rules
IPTABLES="/usr/sbin/iptables"
LXC_START="/usr/bin/lxc-start"
CONTAINER_NAME="mailserver"
HOST_INTERFACE="ens192"
DOCKER_INTERFACE="docker0"
HOST_IP="212.129.32.223"
CONTAINER_IP="10.0.3.8"
PORTS="25 110 143 465 587"
DOCKER_PORTS="25 143 465 587"
NGINX_PORT="21080"
$LXC_START -n $CONTAINER_NAME -d
#Web rules
for PORT in $PORTS
do
$IPTABLES -t nat -I PREROUTING -i $HOST_INTERFACE -p TCP -d $HOST_IP/32 --dport $PORT -j DNAT --to-destination $CONTAINER_IP:$PORT
done
#Need 80 port for main nginx
$IPTABLES -t nat -I PREROUTING -i $HOST_INTERFACE -p TCP -d $HOST_IP/32 --dport $NGINX_PORT -j DNAT --to-destination $CONTAINER_IP:80
#Docker rules
for PORT in $DOCKER_PORTS
do
$IPTABLES -t nat -I PREROUTING -i $DOCKER_INTERFACE -p TCP -d $HOST_IP/32 --dport $PORT -j DNAT --to-destination $CONTAINER_IP:$PORT
done

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