How to import dump file into neo4j running on docker?

I using the following dockerfile I found on the internet:

FROM neo4j

COPY --chown=neo4j db.dump db.dump
COPY --chown=neo4j mgt-entrypoint.sh mgt-entrypoint.sh
RUN chmod +x mgt-entrypoint.sh

ENV NEO4J_AUTH=neo4j/mgttgm
ENV NEO4J_dbms_read__only=true
ENTRYPOINT ["./mgt-entrypoint.sh"]

It doesn't seem to be working.