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.github/workfkows,Dockerfile,Dockerfile.base: add a test for base image (#18180)

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Test that the base image builds and has the right iptables binary
linked.

Updates #17854

Signed-off-by: Irbe Krumina <irbe@tailscale.com>
This commit is contained in:
Irbe Krumina
2025-12-12 18:10:00 +00:00
committed by GitHub
parent 3ef9787379
commit cb5fa35f57
3 changed files with 39 additions and 5 deletions
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@@ -73,6 +73,11 @@ RUN GOARCH=$TARGETARCH go install -ldflags="\
FROM alpine:3.22
RUN apk add --no-cache ca-certificates iptables iproute2 ip6tables
# 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/17854
RUN rm /usr/sbin/iptables && ln -s /usr/sbin/iptables-legacy /usr/sbin/iptables
RUN rm /usr/sbin/ip6tables && ln -s /usr/sbin/ip6tables-legacy /usr/sbin/ip6tables