kubernetes cluster: Deploying the jumpstart example for fastapi fails to render.

[kgartland-rstudio]

Using the testing and kubernetes setup instructions found here:
#245

Deploy the fastapi example.

rsconnect deploy api -s http://localhost:3939 -k {API_KEY} ./

Deployment succeeds but fails to render with no errors in Connect UI.

Browser console logs:

Failed to load resource: the server responded with a status of 500 (Internal Server Error)

Application logs:

2022/06/23 4:37:05 PM: Loading code from "main"


2022/06/23 4:37:06 PM: Starting server...


2022/06/23 4:37:06 PM: Traceback (most recent call last):


2022/06/23 4:37:06 PM: File "/opt/rstudio-connect/python/connect_api_runtime.py", line 52, in wrapper


2022/06/23 4:37:06 PM: return app(environ, start_response)


2022/06/23 4:37:06 PM: File "/opt/rstudio-connect/python/environ_middleware.py", line 17, in __call__


2022/06/23 4:37:06 PM: return self.app(environ, start_response)


2022/06/23 4:37:06 PM: File "/opt/rstudio-connect/python/root_api_console_middleware.py", line 52, in __call__


2022/06/23 4:37:06 PM: response = self.app(environ, interceptor)


2022/06/23 4:37:06 PM: File "/opt/rstudio-connect/python/connect_api_runtime.py", line 125, in wrapper


2022/06/23 4:37:06 PM: return app(environ, start_response_wrapper)


2022/06/23 4:37:06 PM: File "/opt/rstudio-connect/python/connect_api_runtime.py", line 101, in wrapper


2022/06/23 4:37:06 PM: return app(environ, start_response)


2022/06/23 4:37:06 PM: TypeError: __call__() missing 1 required positional argument: 'send'

Deploying the same app using a manifest, it succeeds.

rsconnect deploy manifest -s http://localhost:3939 -k {API_KEY} ./manifest.json --new

manifest.json:

{
  "version": 1,
  "locale": "en_US.UTF-8",
  "metadata": {
    "appmode": "python-fastapi",
    "entrypoint": "main"
  },
  "python": {
    "version": "3.8.2",
    "package_manager": {
      "name": "pip",
      "version": "22.0.4",
      "package_file": "requirements.txt"
    }
  },
  "environment": {
    "image": "rstudio/dev-connect-duplicate"
  },
  "files": {
    "requirements.txt": {
      "checksum": "e29ab3438b69b7e4e1bab7fde0a0bf9d"
    },
    "README.md": {
      "checksum": "07a155866be78c318022981a4fd02d73"
    },
    "main.py": {
      "checksum": "a8d8820f25be4dc8e2bf51a5ba1690b6"
    },
    "manifest-original.json": {
      "checksum": "e414b85f0833a0eedf72375a05321ac0"
    },
    "prices.csv": {
      "checksum": "e0bc27e3dd358c360863807e09079985"
    },
    "thumbnail.jpg": {
      "checksum": "5c5a71ff714d51af90d1b19bd3a35517"
    }
  }
}

[mmarchetti]

Can you confirm that in the manifest that Connect is using (download the bundle), it has an appmode of python-fastapi? Because it seems to be using the Flask/WSGI runtime for a FastAPI app.

[kgartland-rstudio]

Ah the manifest from the deploy api ... method shows python-api rather than python-fastapi:

Downloaded manifest.json:

{
  "version": 1,
  "locale": "en_US.UTF-8",
  "metadata": {
    "appmode": "python-api",
    "entrypoint": "main"
  },
  "python": {
    "version": "3.8.2",
    "package_manager": {
      "name": "pip",
      "version": "22.0.4",
      "package_file": "requirements.txt"
    }
  },
  "environment": {
    "image": "rstudio/dev-connect-duplicate"
  },
  "files": {
    "requirements.txt": {
      "checksum": "e29ab3438b69b7e4e1bab7fde0a0bf9d"
    },
    "README.md": {
      "checksum": "07a155866be78c318022981a4fd02d73"
    },
    "main.py": {
      "checksum": "a8d8820f25be4dc8e2bf51a5ba1690b6"
    },
    "manifest-original.json": {
      "checksum": "e414b85f0833a0eedf72375a05321ac0"
    },
    "prices.csv": {
      "checksum": "e0bc27e3dd358c360863807e09079985"
    },
    "thumbnail.jpg": {
      "checksum": "5c5a71ff714d51af90d1b19bd3a35517"
    }
  }
}

[kgartland-rstudio]

This is user error. I forgot fastapi has its own deploy method (rsconnect deploy fastapi vs rsconnect deploy api). Deploying with the proper content type works. Closing...