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Note: This project is deprecated. To report issues about the playground hosted at https://play.rust-lang.org/, check out the next-gen playpen.

Old README

A web interface for running Rust code.

The interface can also be accessed in most Rust-related channels on irc.mozilla.org.

To use Playbot in a public channel, address your message to it.

<you> playbot: println!("Hello, World");
-playbot:#rust-offtopic- Hello, World
-playbot:#rust-offtopic- ()
<you> playbot: 1+2+3
-playbot:#rust-offtopic- 6

You can also private message Playbot your code to have it evaluated. In a private message, don't preface the code with playbot's nickname:

/msg playbot println!("Hello, World");

Running your own Rust-Playpen

System Requirements

Currently needs to be run on a system with access to Docker.

Running the web server

First, create the Docker images that playpen will use:

sh docker/build.sh

Next, spin up the server.

cargo run --bin playpen

You should now be able to browse http://127.0.0.1:8080 and interact.

IRC Bot Setup

You'll need to move playbot.toml.example to playbot.toml and then configure it appropriately.

Setting up the play.rust-lang.org server

First off, start off with a fresh Ubuntu AMI. These should be listed on https://cloud-images.ubuntu.com/locator/ec2/, and the current one is the Xenial us-west-1 64-bit hvm ebs-ssd server, ami-08490c68.

  • Launch an m3.medium instance
  • Launch into EC2-Classic
  • Protect against accidental termination
  • Make the disk ~100GB
  • Use the existing playground security group

SSH through the bastion, then:

sudo apt-get update
sudo apt-get install python-pip apt-transport-https ca-certificates libssl-dev pkg-config
sudo pip install pygments

curl https://sh.rustup.rs | sh
git clone https://github.com/rust-lang/rust-playpen

# see https://docs.docker.com/engine/installation/linux/ubuntulinux/
sudo apt-key adv --keyserver hkp://p80.pool.sks-keyservers.net:80 --recv-keys 58118E89F3A912897C070ADBF76221572C52609D
echo 'deb https://apt.dockerproject.org/repo ubuntu-xenial main' | sudo tee /etc/apt/sources.list.d/docker.list
sudo apt-get update
sudo apt-get install linux-image-extra-$(uname -r) docker-engine
sudo service docker start
sudo usermod -aG docker ubuntu

Next, configure playbot.toml copied from playbot.toml.example.

Next, open up a screen window (screen -R), and spin up two sessions:

cargo build --release --bin playpen && RUST_LOG=debug ./target/release/playpen 0.0.0.0 2>&1 | logger -t playpen

cargo build --release --bin playbot && RUST_LOG=debug ./target/release/playbot 2>&1 | logger -t playbot

Add a cron job to update the containers daily, currently:

0 10 * * * cd $HOME/rust-playpen && sh docker/build.sh 2>&1 | logger -t playpen-update