FROM alpine:3.19.0 RUN apk update \ && apk upgrade \ && apk add \ mariadb-client \ pdns \ pdns-backend-mysql \ pdns-doc \ && 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 COPY pdns.conf.tpl docker-entrypoint.sh / ENV VERSION=4.8 \ PDNS_guardian=yes \ PDNS_setuid=pdns \ PDNS_setgid=pdns \ PDNS_launch=gmysql EXPOSE 53 53/udp ENTRYPOINT [ "/docker-entrypoint.sh" ] CMD [ "/usr/sbin/pdns_server" ]