| 12345678910111213141516171819202122232425262728 | FROM alpine:3.17LABEL maintainer "The Infrastructure Company GmbH <info@servercow.de>"RUN apk add --update --no-cache \	curl \	unbound \	bash \	openssl \	drill \	tzdata \	&& curl -o /etc/unbound/root.hints https://www.internic.net/domain/named.cache \	&& chown root:unbound /etc/unbound \  && adduser unbound tty \	&& chmod 775 /etc/unboundEXPOSE 53/udp 53/tcpCOPY docker-entrypoint.sh /docker-entrypoint.sh# healthcheck (nslookup)COPY healthcheck.sh /healthcheck.shRUN chmod +x /healthcheck.shHEALTHCHECK --interval=30s --timeout=10s CMD [ "/healthcheck.sh" ]ENTRYPOINT ["/docker-entrypoint.sh"]CMD ["/usr/sbin/unbound"]
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