Dockerfile: put back EXPOSE directive (mastodon#12279)

[Rkt](https://coreos.com/rkt) doesn't allow ports to be exposed to containers unless they are declared in the container manifest. Re-adding EXPOSE back in (removed in 1dbf993) allows the container to be used on rkt based systems.
ProjectMyosotis · Nov 4, 2019 · 3b609da · 3b609da
1 parent 23ed930
commit 3b609da
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/Dockerfile b/Dockerfile
@@ -123,3 +123,4 @@ RUN cd ~ && \
 # Set the work dir and the container entry point
 WORKDIR /opt/mastodon
 ENTRYPOINT ["/tini", "--"]
+EXPOSE 3000 4000