docker-pdns/pdns-recursor/Dockerfile.alpine

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FROM alpine:3.19.0
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RUN apk update \
&& apk upgrade \
&& apk add pdns-recursor \
&& rm -rf /var/cache/apk/*
RUN arch=$([ "$(arch)" = 'aarch64' ] && echo -n 'arm64' || echo -n 'x86_64') \
&& wget -qO- https://github.com/kha7iq/subvars/releases/download/v0.1.4/subvars_Linux_${arch}.tar.gz \
| tar -xzf - -C /usr/local/bin subvars \
&& chmod +x /usr/local/bin/subvars
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RUN mkdir -p /etc/pdns/api.d /var/run/pdns-recursor \
&& chown -R recursor: /etc/pdns/api.d /var/run/pdns-recursor
COPY recursor.conf.tpl docker-entrypoint.sh /
ENV VERSION=4.9 \
PDNS_setuid=recursor \
PDNS_setgid=recursor \
PDNS_daemon=no
EXPOSE 53 53/udp
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ENTRYPOINT [ "/docker-entrypoint.sh" ]
CMD [ "/usr/sbin/pdns_recursor" ]