adding s3 as an option

This commit is contained in:
Colter Downing
2025-12-04 10:52:57 -08:00
parent d4d36bf86e
commit 40aed9b5f8
2 changed files with 101 additions and 6 deletions
+32 -1
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@@ -20,7 +20,7 @@ A docker image is provided but you may use any if the above requirements are met
## Client
The client demonstrates how to use the Vast Serverless SDK to generate images and save them locally.
The client demonstrates how to use the Vast Serverless SDK to generate images, save them locally, and optionally upload to S3-compatible storage.
### Setup
@@ -52,6 +52,12 @@ python -m workers.comfyui-json.client --prompt "a cat sitting on a rainbow"
# With options
python -m workers.comfyui-json.client --prompt "sunset" --width 1024 --height 1024 --steps 30
# Using a custom workflow file
python -m workers.comfyui-json.client --workflow my_workflow.json
# With S3 upload
python -m workers.comfyui-json.client --s3
```
### CLI Flags
@@ -60,15 +66,40 @@ python -m workers.comfyui-json.client --prompt "sunset" --width 1024 --height 10
|------|---------|-------------|
| `--endpoint` | `my-comfyui-endpoint` | Vast endpoint name |
| `--prompt` | (default) | Text prompt for image generation |
| `--workflow` | (none) | Path to custom workflow JSON file |
| `--width` | 512 | Image width in pixels |
| `--height` | 512 | Image height in pixels |
| `--steps` | 20 | Number of denoising steps |
| `--seed` | (random) | Random seed for reproducibility |
| `--s3` | (disabled) | Upload generated images to S3 |
### Output
Images are saved to `./generated_images/comfy_{seed}.png`.
### S3 Upload (Optional)
You can optionally upload generated images to an S3-compatible storage service (AWS S3, Cloudflare R2, Backblaze B2, etc.) by using the `--s3` flag.
**1. Set environment variables:**
```bash
export S3_ENDPOINT_URL="https://your-account.r2.cloudflarestorage.com"
export S3_BUCKET_NAME="my-bucket"
export S3_ACCESS_KEY_ID="your-access-key-id"
export S3_SECRET_ACCESS_KEY="your-secret-access-key"
```
**2. Run with S3 upload enabled:**
```bash
python -m workers.comfyui-json.client --prompt "a beautiful landscape" --s3
```
Images will be saved locally AND uploaded to `s3://{bucket}/comfyui/{filename}`.
**Note:** Requires `boto3` (`pip install boto3`).
## Benchmarking
### Custom Benchmark Workflows
+69 -5
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@@ -12,16 +12,45 @@ from vastai import Serverless
# ---------------------- Config ----------------------
DEFAULT_PROMPT = "a beautiful sunset over mountains, digital art, highly detailed"
ENDPOINT_NAME = "my-comfyui-endpoint"
ENDPOINT_NAME = "Comfy-Prod"
DEFAULT_WIDTH = 512
DEFAULT_HEIGHT = 512
DEFAULT_STEPS = 20
COST = 100 # Fixed cost for ComfyUI requests
# Optional S3 Configuration (from environment variables)
S3_ENDPOINT_URL = os.getenv("S3_ENDPOINT_URL")
S3_BUCKET_NAME = os.getenv("S3_BUCKET_NAME")
S3_ACCESS_KEY_ID = os.getenv("S3_ACCESS_KEY_ID")
S3_SECRET_ACCESS_KEY = os.getenv("S3_SECRET_ACCESS_KEY")
logging.basicConfig(level=logging.INFO, format="%(levelname)s - %(message)s")
log = logging.getLogger(__name__)
def get_s3_client():
"""Create and return an S3 client configured for the S3-compatible endpoint"""
try:
import boto3
from botocore.config import Config
except ImportError:
log.error("boto3 is required for S3 uploads. Install with: pip install boto3")
return None
if not all([S3_ENDPOINT_URL, S3_BUCKET_NAME, S3_ACCESS_KEY_ID, S3_SECRET_ACCESS_KEY]):
log.error("S3 environment variables not fully configured. Required:")
log.error(" S3_ENDPOINT_URL, S3_BUCKET_NAME, S3_ACCESS_KEY_ID, S3_SECRET_ACCESS_KEY")
return None
return boto3.client(
"s3",
endpoint_url=S3_ENDPOINT_URL,
aws_access_key_id=S3_ACCESS_KEY_ID,
aws_secret_access_key=S3_SECRET_ACCESS_KEY,
config=Config(signature_version="s3v4"),
)
# ---------------------- API Functions ----------------------
async def call_generate(
client: Serverless,
@@ -70,9 +99,14 @@ async def call_generate_workflow(
# ---------------------- Demo Class ----------------------
class APIDemo:
def __init__(self, client: Serverless, endpoint_name: str):
def __init__(self, client: Serverless, endpoint_name: str, upload_s3: bool = False):
self.client = client
self.endpoint_name = endpoint_name
self.upload_s3 = upload_s3
self.s3_client = get_s3_client() if upload_s3 else None
if upload_s3 and not self.s3_client:
log.warning("S3 upload requested but client creation failed. Images will only be saved locally.")
def extract_filename(self, response: dict) -> str | None:
"""Extract the generated image filename from ComfyUI response"""
@@ -85,10 +119,29 @@ class APIDemo:
return None
async def save_image(self, worker_url: str, filename: str, local_name: str) -> str | None:
"""Fetch and save image locally from the worker"""
"""Fetch and save image locally from the worker, optionally upload to S3"""
os.makedirs("generated_images", exist_ok=True)
return await self._fetch_image(worker_url, filename, local_name)
def _upload_to_s3(self, local_path: str, s3_key: str) -> str | None:
"""Upload a local file to S3 and return the S3 URL"""
if not self.s3_client:
return None
try:
self.s3_client.upload_file(
local_path,
S3_BUCKET_NAME,
s3_key,
ExtraArgs={"ContentType": "image/png"}
)
s3_url = f"{S3_ENDPOINT_URL}/{S3_BUCKET_NAME}/{s3_key}"
print(f" ☁️ Uploaded to S3: {s3_key}")
return s3_url
except Exception as e:
log.error(f"Failed to upload to S3: {e}")
return None
async def _fetch_image(self, worker_url: str, filename: str, local_name: str) -> str | None:
"""Fetch image from worker's /view endpoint and save locally"""
if not worker_url:
@@ -102,9 +155,16 @@ class APIDemo:
async with session.get(url, params=params, ssl=False) as resp:
if resp.status == 200:
path = f"generated_images/{local_name}"
image_data = await resp.read()
with open(path, "wb") as f:
f.write(await resp.read())
f.write(image_data)
print(f" 💾 Saved: {path}")
# Upload to S3 if enabled
if self.upload_s3 and self.s3_client:
s3_key = f"comfyui/{local_name}"
self._upload_to_s3(path, s3_key)
return path
return None
except Exception:
@@ -207,6 +267,8 @@ def build_arg_parser() -> argparse.ArgumentParser:
p.add_argument("--height", type=int, default=DEFAULT_HEIGHT, help=f"Image height (default: {DEFAULT_HEIGHT})")
p.add_argument("--steps", type=int, default=DEFAULT_STEPS, help=f"Steps (default: {DEFAULT_STEPS})")
p.add_argument("--seed", type=int, default=None, help="Seed (default: random)")
p.add_argument("--s3", action="store_true",
help="Upload generated images to S3 (requires S3_ENDPOINT_URL, S3_BUCKET_NAME, S3_ACCESS_KEY_ID, S3_SECRET_ACCESS_KEY env vars)")
return p
@@ -215,10 +277,12 @@ async def main_async():
print("=" * 60)
print(f"Using endpoint: {args.endpoint}")
if args.s3:
print(f"S3 upload: enabled (bucket: {S3_BUCKET_NAME})")
try:
async with Serverless() as client:
demo = APIDemo(client, args.endpoint)
demo = APIDemo(client, args.endpoint, upload_s3=args.s3)
if args.workflow:
await demo.demo_workflow(workflow_file=args.workflow)