fix dockerfile
diff --git a/Dockerfile b/Dockerfile
index 53727b5..0e6e1aa 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -88,9 +88,3 @@
     rm -rf /datasketches-postgresql /var/lib/apt/lists/* /tmp/* /var/tmp/*
 
 ADD /docker-entrypoint-initdb.d /docker-entrypoint-initdb.d
-
-WORKDIR /
-
-ENTRYPOINT ["/docker-entrypoint.sh"]
-EXPOSE 5432
-CMD ["postgres"]
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