Dockerfile: fix protocol in EXPOSE instruction should be lowercase

diff --git a/Dockerfile b/Dockerfile
index c1d3406a48a53302f31064ea24c83f0bbd32e62c..e13e934d25dccba3c64c0686767664983970219d 100644 (file)
--- a/Dockerfile
+++ b/Dockerfile
@@ -98,10 +98,10 @@ COPY --from=builder /knot-src/distro/common/cz.nic.knotd.conf /usr/share/dbus-1/
 RUN mkdir -p /run/dbus
 
 # Expose port
-EXPOSE 53/UDP
-EXPOSE 53/TCP
-EXPOSE 853/UDP
-EXPOSE 853/TCP
+EXPOSE 53/udp
+EXPOSE 53/tcp
+EXPOSE 853/udp
+EXPOSE 853/tcp
 
 # Prepare shared directories
 VOLUME /config