CelsianJS Fly.io Adapter

Generate Fly.io deployment files (fly.toml, Dockerfile) for CelsianJS apps. This is a build-time deploy adapter, not an HTTP handler.

Part of the CelsianJS monorepo. See the root README for full framework docs.

Installation

npm install @celsian/adapter-fly

Usage

The adapter is a plain object with a buildEnd() method that writes the files. Call it from a post-build script:

// scripts/generate-fly-config.ts
import { flyAdapter } from '@celsian/adapter-fly';

const adapter = flyAdapter({
  appName: 'my-app',
  primaryRegion: 'iad',
  regions: ['lhr', 'nrt'],
  healthCheckPath: '/health',
});

await adapter.buildEnd({
  serverEntry: 'dist/index.js',
  clientDir: 'dist/client',
  staticDir: 'public',
  outDir: '.',
});

node --experimental-strip-types scripts/generate-fly-config.ts

That writes fly.toml, Dockerfile and .dockerignore into outDir; deploy with fly deploy. Because Fly runs a long-lived server, app.task() workers and app.cron() schedulers run normally here.

This adapter is not wired into celsian.config.ts. CelsianConfig has no build.adapter key, so the defineConfig({ build: { adapter } }) form this README used to show did not type-check and was never read by celsian build.

License

MIT