Generate certificates if they don't exist

Dockerfile

@@ -11,7 +11,8 @@ VOLUME ["/data"]
 CMD ["/app/scripts/cross-compile.sh"]
 
 FROM alpine:latest
+VOLUME [ "/data" ]
 COPY --from=builder-base /app/dist/ezshare /usr/bin/ezshare
 EXPOSE 50051
 EXPOSE 8088
-CMD ["/usr/bin/ezshare", "--config", "/data/ezshare.toml", "serve"]
+CMD ["/usr/bin/ezshare", "serve"]