FROM alpine:3.21

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

COPY 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 ["/bin/sh", "/run.sh"]