Codesandbox behind a corporate proxy

[Doogiemuc]

Can I use Codesandbox behind a corporate proxy. I tried today. Here is what I did and the errors I got:

1. Register a completely new account on codesandbox.io
2. Import a github repo. (Nothing big or special, just a standard java quarkus project)
3. Opened sandbox.io dev container
4. Clicked through the initial environemnt setup - everything on default settings

Dev Container cannot start. Error message at bottom right of codesandbox WebIDE:

Failed to initialize VS Code Server: Error: Critical unhandled error (Error) occured: connect ECONNREFUSED /run/user/1002/pitcher/fs-container.sock. We've opened VS Code in web-only in the meantime.**

When clicking on that error message it opens a terminal that shows:

 *  Executing task: CodeSandbox: Environment setup 
[2 ms] @devcontainers/cli 0.72.0. Node.js v18.20.6. linux 6.1.43 x64.
[626 ms] Files to omit: 'devcontainer-template.json, README.md, NOTES.md'
{"files":["./.devcontainer/devcontainer.json","./.github/dependabot.yml"]}
 *  Terminal will be reused by tasks, press any key to close it. 

I am pretty sure, that all this is because I am sitting behind a quite strict corporate proxy. Our company forces us to tunnel every connection to the internet through that proxy.

So I configure the proxy in codesandbox settings as https://<username>:<password>:proxy.domain:8080´ I have the same configured im my local https_proxy` environment variable.

Started everything again. Reload inbrowser. Logged in again. Tried several times. Still the same error.

Link to my DevContainer:
https://codesandbox.io/p/github/Doogiemuc/liquido-backend-quarkus/draft/lucid-thunder

Any ideas? Any advice? Any more other logs I can provide? (Logs from the VM? How to get them?)

[Doogiemuc]

I also tried adding the environment veriable https_proxy to the environment of the devcontainer itself. But then I get the error message in the dev container logs: "getaddrinfo ENOTFOUND proxy." I am not quite sure, but I have the feeling that this aproach is wrong in the first place. Does the linux running on the dev container need my proxy at all? Isn't it running "in the cloud" anyway.

I'd assume that the connection between my local browser and (somewhere in) codesandbox io needs to go through my coorporate's proxy.