2023-01-27 13:37:20 -08:00
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# Copyright (c) Tailscale Inc & AUTHORS
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# SPDX-License-Identifier: BSD-3-Clause
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2021-11-21 20:52:19 -08:00
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2025-03-26 01:48:01 +00:00
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FROM alpine:3.19
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RUN apk add --no-cache ca-certificates iptables iptables-legacy iproute2 ip6tables iputils
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# Alpine 3.19 replaces legacy iptables with nftables based implementation. We
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# can't be certain that all hosts that run Tailscale containers currently
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# suppport nftables, so link back to legacy for backwards compatibility reasons.
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# TODO(irbekrm): add some way how to determine if we still run on nodes that
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# don't support nftables, so that we can eventually remove these symlinks.
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RUN rm /sbin/iptables && ln -s /sbin/iptables-legacy /sbin/iptables
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RUN rm /sbin/ip6tables && ln -s /sbin/ip6tables-legacy /sbin/ip6tables
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