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Script to fix Docker iptables on Synology NAS
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#!/bin/bash | |
currentAttempt=0 | |
totalAttempts=10 | |
delay=15 | |
while [ $currentAttempt -lt $totalAttempts ] | |
do | |
currentAttempt=$(( $currentAttempt + 1 )) | |
echo "Attempt $currentAttempt of $totalAttempts..." | |
result=$(iptables-save) | |
if [[ $result =~ "-A DOCKER -i docker0 -j RETURN" ]]; then | |
echo "Docker rules found! Modifying..." | |
iptables -t nat -A PREROUTING -m addrtype --dst-type LOCAL -j DOCKER | |
iptables -t nat -A PREROUTING -m addrtype --dst-type LOCAL ! --dst 127.0.0.0/8 -j DOCKER | |
echo "Done!" | |
break | |
fi | |
echo "Docker rules not found! Sleeping for $delay seconds..." | |
sleep $delay | |
done |
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