Incompatibility between uvicorn and python images above 3.10

[JoanaPedrosoDiconium]

I am using the image python python3.10.17-alpine3.20, however this notification has some CVEs. When I try to update it to any python image, either python3.11.12-alpine3.20, python3.12.10-alphine3.20 or python3.13.3-alpine3.20 I get the following error on pod start:

Error: failed to create containerd task: failed to create shim task: OCI runtime create failed: runc create failed: unable to start container process: exec: "uvicorn": executable file not found in $PATH: unknown

Uvicorn version being used is 0.34.1. Is there some known incompatibility between uvicorn and any of those docker images? If so what image could I use that fixes the CVEs and is compatible with uvicorn?

Thank you
Joana

[yosifkit]

Besides the python versions there aren't many differences between them. I am unable to reproduce any problem of uvicorn not being in the path (and the same result for python:3.12.10-alpine3.20 and python:3.13.3-alpine3.20):

$ docker run -it --rm python:3.11.12-alpine3.20 sh
Unable to find image 'python:3.11.12-alpine3.20' locally
3.11.12-alpine3.20: Pulling from library/python
14cc43950863: Pull complete
d713be8cea52: Pull complete
0999d641008f: Pull complete
Digest: sha256:61197ffa686ff0afdff16b6dbbe2c320d31df3d8e54319c743aeecc47159d1f7
Status: Downloaded newer image for python:3.11.12-alpine3.20
/ # pip install uvicorn
Collecting uvicorn
  Downloading uvicorn-0.34.1-py3-none-any.whl.metadata (6.5 kB)
Collecting click>=7.0 (from uvicorn)
  Downloading click-8.1.8-py3-none-any.whl.metadata (2.3 kB)
Collecting h11>=0.8 (from uvicorn)
  Downloading h11-0.14.0-py3-none-any.whl.metadata (8.2 kB)
Downloading uvicorn-0.34.1-py3-none-any.whl (62 kB)
   ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 62.4/62.4 kB 3.2 MB/s eta 0:00:00
Downloading click-8.1.8-py3-none-any.whl (98 kB)
   ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 98.2/98.2 kB 10.6 MB/s eta 0:00:00
Downloading h11-0.14.0-py3-none-any.whl (58 kB)
   ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 58.3/58.3 kB 8.8 MB/s eta 0:00:00
Installing collected packages: h11, click, uvicorn
Successfully installed click-8.1.8 h11-0.14.0 uvicorn-0.34.1
WARNING: Running pip as the 'root' user can result in broken permissions and conflicting behaviour with the system package manager. It is recommended to use a virtual environment instead: https://pip.pypa.io/warnings/venv

[notice] A new release of pip is available: 24.0 -> 25.0.1
[notice] To update, run: pip install --upgrade pip
/ # uvicorn
Usage: uvicorn [OPTIONS] APP
Try 'uvicorn --help' for help.

Error: Missing argument 'APP'.
/ #