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Dockerfile: switch to iptables-legacy to match the host

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CI runs on Ubuntu 16.04 machines, which use iptables (legacy), but
Debian buster uses nftables. Because of this, DNS resolution does not
work if the daemon configures iptables.

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
This commit is contained in:
Sebastiaan van Stijn 2019-07-22 17:22:13 +02:00
parent 4e3ab9e9fb
commit bb0472bd23
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@ -284,6 +284,11 @@ RUN --mount=type=cache,sharing=locked,id=moby-dev-aptlib,target=/var/lib/apt \
zip zip
# Switch to use iptables instead of nftables (to match the host machine)
RUN update-alternatives --set iptables /usr/sbin/iptables-legacy || true \
&& update-alternatives --set ip6tables /usr/sbin/ip6tables-legacy || true \
&& update-alternatives --set arptables /usr/sbin/arptables-legacy || true
RUN pip3 install yamllint==1.16.0 RUN pip3 install yamllint==1.16.0
COPY --from=dockercli /build/ /usr/local/cli COPY --from=dockercli /build/ /usr/local/cli