added flyio deployment example

examples/deployment/flyio-example/bot_runner.py

@@ -0,0 +1,199 @@
+import os
+import argparse
+import subprocess
+import requests
+
+from pipecat.transports.services.helpers.daily_rest import DailyRESTHelper, DailyRoomObject, DailyRoomProperties, DailyRoomParams
+
+from fastapi import FastAPI, Request, HTTPException
+from fastapi.middleware.cors import CORSMiddleware
+from fastapi.responses import JSONResponse
+
+from dotenv import load_dotenv
+load_dotenv(override=True)
+
+
+# ------------ Configuration ------------ #
+
+MAX_SESSION_TIME = 5 * 60  # 5 minutes
+REQUIRED_ENV_VARS = [
+    'DAILY_API_KEY',
+    'OPENAI_API_KEY',
+    'ELEVENLABS_API_KEY',
+    'ELEVENLABS_VOICE_ID',
+    'FLY_API_KEY',
+    'FLY_APP_NAME',]
+
+FLY_API_HOST = os.getenv("FLY_API_HOST", "https://api.machines.dev/v1")
+FLY_APP_NAME = os.getenv("FLY_APP_NAME", "pipecat-fly-example")
+FLY_API_KEY = os.getenv("FLY_API_KEY", "")
+FLY_HEADERS = {
+    'Authorization': f"Bearer {FLY_API_KEY}",
+    'Content-Type': 'application/json'
+}
+
+daily_rest_helper = DailyRESTHelper(
+    os.getenv("DAILY_API_KEY", ""),
+    os.getenv("DAILY_API_URL", 'https://api.daily.co/v1'))
+
+
+# ----------------- API ----------------- #
+
+app = FastAPI()
+
+app.add_middleware(
+    CORSMiddleware,
+    allow_origins=["*"],
+    allow_credentials=True,
+    allow_methods=["*"],
+    allow_headers=["*"]
+)
+
+# ----------------- Main ----------------- #
+
+
+def spawn_fly_machine(room_url: str, token: str):
+    # Use the same image as the bot runner
+    res = requests.get(f"{FLY_API_HOST}/apps/{FLY_APP_NAME}/machines", headers=FLY_HEADERS)
+    if res.status_code != 200:
+        raise Exception(f"Unable to get machine info from Fly: {res.text}")
+    image = res.json()[0]['config']['image']
+
+    # Machine configuration
+    cmd = f"python3 bot.py -u {room_url} -t {token}"
+    cmd = cmd.split()
+    worker_props = {
+        "config": {
+            "image": image,
+            "auto_destroy": True,
+            "init": {
+                "cmd": cmd
+            },
+            "restart": {
+                "policy": "no"
+            },
+            "guest": {
+                "cpu_kind": "shared",
+                "cpus": 1,
+                "memory_mb": 1024
+            }
+        },
+
+    }
+
+    # Spawn a new machine instance
+    res = requests.post(
+        f"{FLY_API_HOST}/apps/{FLY_APP_NAME}/machines",
+        headers=FLY_HEADERS,
+        json=worker_props)
+
+    if res.status_code != 200:
+        raise Exception(f"Problem starting a bot worker: {res.text}")
+
+    # Wait for the machine to enter the started state
+    vm_id = res.json()['id']
+
+    res = requests.get(
+        f"{FLY_API_HOST}/apps/{FLY_APP_NAME}/machines/{vm_id}/wait?state=started",
+        headers=FLY_HEADERS)
+
+    if res.status_code != 200:
+        raise Exception(f"Bot was unable to enter started state: {res.text}")
+
+    print(f"Machine joined room: {room_url}")
+
+
+@app.post("/start_bot")
+async def start_bot(request: Request) -> JSONResponse:
+    try:
+        data = await request.json()
+        # Is this a webhook creation request?
+        if "test" in data:
+            return JSONResponse({"test": True})
+    except Exception as e:
+        pass
+
+    # Use specified room URL, or create a new one if not specified
+    room_url = os.getenv("DAILY_SAMPLE_ROOM_URL", "")
+
+    if not room_url:
+        params = DailyRoomParams(
+            properties=DailyRoomProperties()
+        )
+        try:
+            room: DailyRoomObject = daily_rest_helper.create_room(params=params)
+        except Exception as e:
+            raise HTTPException(
+                status_code=500,
+                detail=f"Unable to provision room {e}")
+    else:
+        # Check passed room URL exists, we should assume that it already has a sip set up
+        try:
+            room: DailyRoomObject = daily_rest_helper.get_room_from_url(room_url)
+        except Exception:
+            raise HTTPException(
+                status_code=500, detail=f"Room not found: {room_url}")
+
+    # Give the agent a token to join the session
+    token = daily_rest_helper.get_token(room.url, MAX_SESSION_TIME)
+
+    if not room or not token:
+        raise HTTPException(
+            status_code=500, detail=f"Failed to get token for room: {room_url}")
+
+    # Launch a new fly.io machine, or run as a shell process (not recommended)
+    run_as_process = os.getenv("RUN_AS_PROCESS", False)
+
+    if run_as_process:
+        try:
+            subprocess.Popen(
+                [f"python3 -m bot -u {room.url} -t {token}"],
+                shell=True,
+                bufsize=1,
+                cwd=os.path.dirname(os.path.abspath(__file__)))
+        except Exception as e:
+            raise HTTPException(
+                status_code=500, detail=f"Failed to start subprocess: {e}")
+    else:
+        try:
+            spawn_fly_machine(room.url, token)
+        except Exception as e:
+            raise HTTPException(
+                status_code=500, detail=f"Failed to spawn VM: {e}")
+
+    # Grab a token for the user to join with
+    user_token = daily_rest_helper.get_token(room.url, MAX_SESSION_TIME)
+
+    return JSONResponse({
+        "room_url": room.url,
+        "token": user_token,
+    })
+
+if __name__ == "__main__":
+    # Check environment variables
+    for env_var in REQUIRED_ENV_VARS:
+        if env_var not in os.environ:
+            raise Exception(f"Missing environment variable: {env_var}.")
+
+    parser = argparse.ArgumentParser(description="Pipecat Bot Runner")
+    parser.add_argument("--host", type=str,
+                        default=os.getenv("HOST", "0.0.0.0"), help="Host address")
+    parser.add_argument("--port", type=int,
+                        default=os.getenv("PORT", 7860), help="Port number")
+    parser.add_argument("--reload", action="store_true",
+                        default=False, help="Reload code on change")
+
+    config = parser.parse_args()
+
+    try:
+        import uvicorn
+
+        uvicorn.run(
+            "bot_runner:app",
+            host=config.host,
+            port=config.port,
+            reload=config.reload
+        )
+
+    except KeyboardInterrupt:
+        print("Pipecat runner shutting down...")