first commit

Dockerfile

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+ARG PG_TAG=latest
+FROM postgres:${PG_TAG}
+LABEL description="PostgreSQL with non-superuser db user."
+
+COPY custom-entrypoint.sh /usr/local/bin/
+ENTRYPOINT ["custom-entrypoint.sh"]
+STOPSIGNAL SIGINT
+EXPOSE 5432
+CMD ["postgres"]