Using S3 to upload images with serverless

Uploading to an S3 bucket has 2 major steps

1. Writing python code to upload files to S3
2. Setting the environment variables for your S3 bucket

Uploading to an S3 bucket with python

1. For the example code, we presume 2 things

   • you've installed the runpod python library with pip install runpod
   • you've an image file at ./image.png in the docker container

2. Now in your handler function, here's some example code that can upload to an s3 bucket, the code uploads the image image.png to an s3 bucket, and returns a url to the image

   Python

   from runpod.serverless.utils import rp_upload
   import runpod
   
   def handler(job):
       image_url = rp_upload.upload_image(job['id'], "./image.png")
       return [image_url]
   
   runpod.serverless.start({"handler": handler})
   

3. now package your code in a similar manner as described by the Worker Image Creation and Template Creation steps

Setting the environment variables

1. You can set environment variables for a pod via the template creation/editing interface, the Environment Variables section is in the very bottom
   

2. Set the following environment variables
   

3. You've to set the variables

   • BUCKET_ENDPOINT_URL
   • BUCKET_ACCESS_KEY_ID
   • and BUCKET_SECRET_ACCESS_KEY

   ensure your BUCKET_ENDPOINT_URL has the bucket name at the start (for example, https://your-bucket-name.nyc3.digitaloceanspaces.com or https://your-bucket.s3.us-west-004.backblazeb2.com)

Testing your api out

1. Now when you access your api you should see the image as an output uploaded to s3, here's a sample input
   Editors note : your request must contain an input key, and it must be a json item, so ensure you put that, a sample request has been provided below

   Python

   import requests
   
   endpoint = "https://api.runpod.ai/v2/xxxxxxxxx/run"
   
   headers = {
     "Content-Type": "application/json",
     "Authorization": "Bearer XXXXXXXXXXXXX"
   }
   
   # Define your inputs
   # an input value must be present, even if it is unused,
   # and it must be a json value
   input_data = {
       "input": {"inp":"this is an example input"}
   }
   
   response = requests.post(endpoint, json=input_data, headers=headers)
   json     = response.json()
   
   # the json will be similar to
   # {'id': 'e3d2e250-ea81-4074-9838-1c52d006ddcf', 'status': 'IN_QUEUE'}
   

2. Here's an example output request, with the image in output

   Python

   response = requests.get("https://api.runpod.ai/v2/xxxxxxxxx/status/" + json['id'], headers=headers)
   response.json()
   

   Here's an example response, after the request completes

   JSON

   {
     'delayTime': 86588,
     'executionTime': 1563,
     'id': 'e3d2e250-ea81-4074-9838-1c52d006ddcf',
     'output': ['https://your-bucket.s3.us-west-004.backblazeb2.com/your-image.png'],
     'status': 'COMPLETED'
   }