FROM alpine:3.22

RUN \
  apk --no-cache upgrade && \
  apk --no-cache add rsyslog rsyslog-mmutf8fix tini

COPY --chown=root:root --chmod=700 run.sh /

EXPOSE 514/tcp
EXPOSE 514/udp

ENV TARGET_HOST="127.0.0.1" \
    TARGET_PROTO="tcp" \
    TARGET_PORT="514" \
    DEBUG="0"

VOLUME [ "/extraconfig" ]

ENTRYPOINT ["/sbin/tini", "--", "/run.sh"]