PlatformIO IDE extension does not work on code-server v3.0.1 from Docker Hub

[r0zzy5]

I am trying to install the PlatformIO IDE extension on a code-server v3.0.1 instance hosted in a docker container. I am running Docker Desktop on Windows 10 Pro and accessing code-server using Chrome 80. The extension seems to install fine using the extension manager in code-server, but when I try to open the PlatformIO Home tab, Chrome reports that 127.0.0.1:8010 did not send any data and therefore the PlatformIO Home page is not shown:

I am using the following Dockerfile:

FROM codercom/code-server:3.0.1

USER root

RUN apt-get update && apt-get install -y python3 python3-distutils \
	&& rm -rf /var/lib/apt/lists/*

USER coder

EXPOSE 8010

ENTRYPOINT ["dumb-init", "fixuid", "-q", "/usr/local/bin/code-server", "--host", "0.0.0.0", "--auth", "none", "."]

And the following docker-compose.yml:

version: '3.3'
services:
    code-server-platformio:
        image: r0zzy5/code-server-platformio
        ports:
            - '8080:8080'
            - '8010:8010'
        volumes:
            - './src:/home/coder/project'

[x-cubed]

I've had a quick look at this.

platformio starts a server listening on 127.0.0.1:8010. This is because it usually only needs to be accessible on the same machine when running on the desktop. The catch is that this can't be exposed by Docker, as Docker only maps through to non-loopback addresses.

platformio home supports a --host argument to get it to listen on another interface, so it can be started with --host=0.0.0.0 so that it can be exposed by Docker.

Not sure what the right fix is though. Should platformio know that it's running in a server environment, or should there be some special logic in code-server to handle it?

It'd be nice to get it working out of the box without any custom Dockerfiles involved.

[r0zzy5]

@x-cubed, I agree it would be best if this could "just work" without any custom Dockerfiles.

However for the time being, where would I configure my platformio home to launch using the --host argument?

[kylecarbs]

We could fix this with the addition of our #1453 feature.

Thoughts @code-asher ?

[code-asher]

Yeah, seems like we could just access it at <domain>/proxy/8010. I didn't see an option for changing the URL it tries to open though so I'm not sure how we'd make that work. Maybe it's possible to detect a webview opening on 127.0.0.1:port and change it to the proxy domain instead.

[justurn]

Just got this to run on my system will leave this for anyone it may help...

In the PIO terminal on code-server use the command 'pio home --host x.x.x.x --port 8010' where x.x.x.x is the IP of the docker then bridge the docker port to the host like @r0zzy5 showed. You should then have access to the PIO webgui through http://y.y.y.y:8010 where y.y.y.y is the docker host IP

[plckr]

Any update on this?

[jsjoeio]

@ricreis394 do the solutions above not work for you? If not, we can take a look into this again.

[plckr]

@jsjoeio when I click to open PlatformIO Home Page, the UI tries to load a frame which is pointer to 127.0.0.1:, which obviously cannot load.

The commands used in command line are as follows:
pio home --host <internal_docker_ip> --port 8010
pio home --host localhost --port 8010

These 2 above loads something, but not completely, using the subsubdomain port like: 8010.code.example.com

[jsjoeio]

Ah okay! Hmm..I am not familiar with PlatformIO.

Would it be possible for you to provide reproduction steps using the latest version of code-server? If you need an example, look at our bug report template.

With that, I'd be happy to take a closer look for you.

[plckr]

OS/Web Information

• Web Browser: Google Chrome Version 89.0.4389.90 (Official Build) (64-bit)
• Local OS: Windows 10
• Remote OS: linuxserver (maybe alpine?)
• Remote Architecture: x86-64
• code-server --version: 3.9.1 e0203f2

Steps to Reproduce

1. Have subsubdomain reverse proxy configuration for code-server, like <port>.code-server.example.com
2. Install PlatformIO extension
3. Go to PlatformIO sidebar section, click PIO Home -> Open

Expected

It should appear the PIO Home webpage

Actual

Appears 127.0.0.1 refused to connect.

Screenshot

Notes

when I click to open PlatformIO Home Page, the UI tries to load a frame which is pointer to 127.0.0.1:, which obviously cannot load.

The commands used in command line are as follows:
pio home --host <internal_docker_ip> --port 8010
pio home --host localhost --port 8010

These 2 above loads something, but not completely, using the subsubdomain port like: 8010.code.example.com

This issue can be reproduced in VS Code: No

[jsjoeio]

Awesome! Thanks so much for the detailed repro steps @ricreis394 - we'll take a look at this in the next milestone/sprint!

EDIT: meant to tag you @ricreis394😅