docker/mod/freeswitch/entrypoint.sh

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#!/bin/bash
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# remove all SIP (port 5060) iptable rules
iptables -S INPUT | grep "\-\-dport 5060 " | cut -d " " -f 2- | xargs -rL1 iptables -D
# block requests to 5060 (tcp/udp)
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iptables -A INPUT -p tcp --dport 5060 -s 0.0.0.0/0 -j REJECT
iptables -A INPUT -p udp --dport 5060 -s 0.0.0.0/0 -j REJECT
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# allow some IPs
IFS=',' read -ra ADDR <<< "$SIP_IP_ALLOWLIST"
for IP in "${ADDR[@]}"; do
# process "$i"
echo "allow port 5060/udp for $IP"
iptables -I INPUT -p udp --dport 5060 -s $IP -j ACCEPT
done
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dockerize \
-template /etc/freeswitch/vars.xml.tmpl:/etc/freeswitch/vars.xml \
-template /etc/freeswitch/autoload_configs/conference.conf.xml.tmpl:/etc/freeswitch/autoload_configs/conference.conf.xml \
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/usr/bin/freeswitch -u freeswitch -g daemon -nonat -nf