use entrypoint, so people can specify flags to etcd without providing the binary. Signed-off-by: Secret <haichuang221@163.com>
@@ -6,5 +6,5 @@ RUN mkdir -p /var/etcd/
EXPOSE 2379 2380
-# Define default command.
-CMD ["/usr/local/bin/etcd"]
+# Define default entrypoint.
+ENTRYPOINT ["/usr/local/bin/etcd"]