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FROM debian:stable-slim
SHELL [ "/bin/sh", "-ec" ]
RUN export DEBCONF_NONINTERACTIVE_SEEN=true \
DEBIAN_FRONTEND=noninteractive \
DEBIAN_PRIORITY=critical \
TERM=linux ; \
apt-get -qq update ; \
apt-get -yyqq upgrade ; \
apt-get -yyqq install ca-certificates ; \
apt-get clean
FROM scratch
COPY --from=0 /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/
ADD coredns /coredns
EXPOSE 53 53/udp
ENTRYPOINT ["/coredns"]
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