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12345678910111213# Copyright (c) Tailscale Inc & contributors# SPDX-License-Identifier: BSD-3-Clause
FROM alpine:3.22RUN apk add --no-cache ca-certificates iptables iptables-legacy iproute2 ip6tables iputils# Alpine 3.19 replaced legacy iptables with nftables based implementation.# Tailscale is used on some hosts that don't support nftables, such as Synology# NAS, so link iptables back to legacy version. Hosts that don't require legacy# iptables should be able to use Tailscale in nftables mode. See# https://github.com/tailscale/tailscale/issues/17854RUN rm /usr/sbin/iptables && ln -s /usr/sbin/iptables-legacy /usr/sbin/iptablesRUN rm /usr/sbin/ip6tables && ln -s /usr/sbin/ip6tables-legacy /usr/sbin/ip6tables