Evan Rusackas e4f0e0a71b fix(docker): prevent static asset 404s by waiting for webpack dev server ...

When running `docker compose up`, nginx would start immediately and begin
proxying `/static` requests to port 9000 (webpack dev server) before the
`superset-node` container had finished running `npm install` and starting
the dev server. This resulted in 404 errors for all static assets.

This fix adds:
1. A health check to `superset-node` that verifies the webpack dev server
   is responding on port 9000
2. A `depends_on` condition on `nginx` that waits for `superset-node` to
   be healthy before starting

The health check:
- Uses Node.js (already available in the container) to make HTTP requests
- Has a 60-second start period to allow for `npm install`
- Retries up to 30 times at 10-second intervals (5+ minutes total)
- Prevents nginx from proxying to a non-existent server

Fixes #30183

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

2026-02-21 21:51:14 -08:00

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