How can I create an online Rust compiler? Docker or VM?

It would be similar to Rust playground, but since I am building a DSL, there are some dependencies that are not included in the official playground. And of course, for better experience, I would like to have this online compiler on my own website. It should:

  • code in
  • binary out

Now I am studying Docker and VM, but not sure which one I should use. Any suggestions or tips?
Thank you so much in advance!

cc @shepmaster, I suspect they have thought about this more than anybody else out there :smile:

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You could start from the Rust playground code: GitHub - integer32llc/rust-playground: The Rust Playground

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If you understand Go you can also check out their playground repo.

Yup. In general handwavy terms, you "just" need to edit the Cargo.toml to include your crates, then build the 6 Docker images (stable, beta, nightly, rustfmt, clippy, miri). You'd build the frontend code and backend code and put them all together behind nginx.

The top-crates library / binary allow modifying the crates that are automatically included in the playground.

You can also see how we deploy the playground.

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wow, thank you so much!

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General handwavey warning that Docker is not a security mechanism. Assume any way of running code, including bugs in your language, will let someone get control over the host machine.

Simplest option is to just host on a cloud provider with no permissions and cycle the machines regularly. (Or a managed Docker service like AWS Fargate that does the equivalent for you)

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