Deno: Passing --allow-read flag when deploying

Questions / Help
1

I’m trying to deploy a Deno app — you can see it here: https://github.com/RoyalIcing/postage-stamp

I require reading a local font file, and so it hits this error when deploying:

error: Uncaught (in promise) PermissionDenied: Requires read access to “./inter-font/Inter-Regular.ttf”, run again with the --allow-read flag

Is there a way to change the flags passed?

2

We need to replace our Deno builder, it’s a little stale. For now, it’s best to use a Dockerfile. Just add a Dockerfile to your directory like this:

FROM hayd/deno:alpine-1.8.2

ENV PORT=8080
EXPOSE 8080
WORKDIR /app
USER deno
ADD . .
RUN deno cache server.ts

CMD ["run", "--allow-read", "server.ts"]

Then comment out these two lines in your fly.toml:

# [build]
#   builder = "flyio/builder"

You should be good to go. You can change the CMD line to do whatever you need.

3

FYI, Deno now has official Docker builds.

Adding this alternate build info to the fly.io docs (with this example) would have been super helpful.

4

Oh good call! The docs are open source if you’re feeling ambitious: GitHub - superfly/docs

5

I don’t have a moment to work on that right now. I would have liked to file an issue on the docs repo to help remind you (its where I went first), but that repo disallows issues. :frowning:

6

Oh this forum is a great place to report it. :slight_smile: Keeping up with github issues across projects is wizardry we haven’t learned yet.