When developing, you can place these in a .env file on
disk in this directory.
In production, these should be set according to your deployment method of choice.
| Key | Required | Default Value | Description |
|---|---|---|---|
PLAYGROUND_UI_ROOT |
No | The path to the HTML, CSS, and Javascript files (the directory containing index.html) | |
PLAYGROUND_GITHUB_TOKEN |
No | The GitHub API token to read and write Gists | |
PLAYGROUND_UI_ADDRESS |
No | 127.0.0.1 | The address to listen on |
PLAYGROUND_UI_PORT |
No | 5000 | The port to listen on |
PLAYGROUND_METRICS_TOKEN |
No | If set, will require authentication for the metrics endpoint | |
PLAYGROUND_CORS_ENABLED |
No | If set, will enable CORS support | |
TMPDIR |
No | system-provided | Where compilation artifacts will be saved. Must be accessible to Docker |
After launching ui, when you try to do any action (ex. build, rustfmt, run and so on), you get errors from Docker about "Mounts denied":
docker: Error response from daemon: Mounts denied:
The paths /var/folders/dx/l5pn75zx5v9_cwstvgwc5qyc0000gn/T/playground.6gEHdGUM6XPU/output and /var/folders/dx/l5pn75zx5v9_cwstvgwc5qyc0000gn/T/playground.6gEHdGUM6XPU/input.rs
are not shared from OS X and are not known to Docker.
You can configure shared paths from Docker -> Preferences... -> File Sharing.
See https://docs.docker.com/docker-for-mac/osxfs/#namespaces for more info.
.
time="2099-12-31T00:00:00+00:00" level=error msg="error waiting for container: context canceled"
To fix this issue, set the TMPDIR environment variable to a path that Docker can mount:
mkdir tmp
TMPDIR=$PWD/tmp cargo run
(Note: This was reported at #480)