docker image on linux still has permissions issues

[jlevon]

Version of Marp Tool

latest marp-cli docker image

Operating System

Linux

Environment

Running docker on Ubuntu

$ lsb_release -a
No LSB modules are available.
Distributor ID:	Ubuntu
Description:	Ubuntu 20.04.2 LTS
Release:	20.04
Codename:	focal

How to reproduce

$ docker run --rm --init -v $PWD:/home/marp/app/ -e MARP_USER="$(id -u):$(id -g)" -e LANG=$LANG marpteam/marp-cli --pdf --allow-local-files -o ioregionfd.pdf ioregionfd.md
[  INFO ] Converting 1 markdown...
[  WARN ] Insecure local file accessing is enabled for conversion from
          ioregionfd.md.
[ ERROR ] Failed converting Markdown. (EACCES: permission denied, open
          '/tmp-7-DArfLrvtsb2d-.html')

There's no mention of this issue on the hub page.

Expected behavior

I can follow the instructions and build OK.

Actual behavior

EACCES on writing to / inside the container

Additional information

No response

[yhatt]

It probably a permission trouble for writing intermediate HTML file. What would happen if run without --allow-local-files? (It will convert Marp slide without file system)

CC: @davebaird (#334)

[jlevon]

You're right, it works without that, thanks. Is there a way to not use that flag, but still include images (for example)

[yhatt]

You still can use online images, just like ![](https://example.com/xxxxxx.jpg).

[jlevon]

Thanks, but that's an issue for content that needs to be behind a VPN etc.

[yhatt]

Fixed by #379.