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Fix docker in docker not working in ubuntu 26.04 #1634

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Fix docker in docker not working in ubuntu 26.04 #1634

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ee5c048
fix(devcontainer): fix devcontainer under ubuntu 26.04 - iptables cha…
May 2, 2026
2af1765
comment(docker-in-docker): add back the comment that I accidently rem…
May 2, 2026
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11 changes: 9 additions & 2 deletions src/docker-in-docker/install.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -312,8 +312,15 @@ fi

# Swap to legacy iptables for compatibility (Debian only)
if [ "${ADJUSTED_ID}" = "debian" ] && type iptables-legacy > /dev/null 2>&1; then
update-alternatives --set iptables /usr/sbin/iptables-legacy
update-alternatives --set ip6tables /usr/sbin/ip6tables-legacy
# Check if host kernel supports ip_tables/iptable_nat
if iptables-legacy -t nat -L > /dev/null 2>&1; then
update-alternatives --set iptables /usr/sbin/iptables-legacy
update-alternatives --set ip6tables /usr/sbin/ip6tables-legacy
else
# first appeared in Ubuntu ≥ 26.04
update-alternatives --set iptables /usr/sbin/iptables-nft
update-alternatives --set ip6tables /usr/sbin/ip6tables-nft
fi
fi

# Set up the necessary repositories
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