Deploy a FastAPI app

version: 1

databases:
  - name: db
    engine: postgres
    version: "18"
    diskSizeGB: 10

services:
  - name: api
    runtime: python
    runtimeVersion: "3.12"
    buildCommand: pip install -r requirements.txt
    command: ["uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "8000"]
    dependsOn: [db]
    ports:
      - port: 8000
        public: true
    healthCheckPath: /healthz
    env:
      DATABASE_URL: ${service.db.url}

from fastapi import FastAPI

app = FastAPI()

@app.get("/healthz")
def healthz():
    return {"status": "ok"}

    preDeploy: ["alembic", "upgrade", "head"]

    replicas: 3

    scaling:
      min: 2
      max: 10
      targetCPUPercent: 70

databases:
  - name: queue
    engine: redis

services:
  - name: worker
    type: worker
    runtime: python
    runtimeVersion: "3.12"
    buildCommand: pip install -r requirements.txt
    command: ["celery", "-A", "app.worker", "worker", "-l", "info"]
    env:
      DATABASE_URL: ${service.db.url}
      CELERY_BROKER_URL: ${service.queue.url}