[BUG] pip not installed so docker image incomplete

[banksonian]

Is there an existing issue for this?

• I have searched the existing issues

Current Behavior

logs show a persistent error looking for the Flask package and web site is inaccessible (not running)

Instance fixed by:
docker exec -it calibre-web /bin/bash

apt install python3-pip
rerunning the dockerfile's RUN commands

Expected Behavior

web site is acccessible

Steps To Reproduce

fresh docker compose

Environment

pulled using docker compose

CPU architecture

x86-64

Docker creation

image pulled using docker compose

Container logs

...
calibre-web  | ModuleNotFoundError: No module named 'flask'
calibre-web  | Traceback (most recent call last):
calibre-web  |   File "/app/calibre-web/cps.py", line 28, in <module>
calibre-web  |     from cps.main import main
calibre-web  |   File "/app/calibre-web/cps/__init__.py", line 28, in <module>
calibre-web  |     from flask import Flask
calibre-web  | ModuleNotFoundError: No module named 'flask'
calibre-web  | Traceback (most recent call last):
calibre-web  |   File "/app/calibre-web/cps.py", line 28, in <module>
calibre-web  |     from cps.main import main
calibre-web  |   File "/app/calibre-web/cps/__init__.py", line 28, in <module>
calibre-web  |     from flask import Flask
calibre-web  | ModuleNotFoundError: No module named 'flask'
calibre-web  | Traceback (most recent call last):
calibre-web  |   File "/app/calibre-web/cps.py", line 28, in <module>
calibre-web  |     from cps.main import main
calibre-web  |   File "/app/calibre-web/cps/__init__.py", line 28, in <module>
calibre-web  |     from flask import Flask
...

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[github-actions]

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[radcki]

I had same issue. It can be fixed simply by changing "python3" to "/lsiopy/bin/python3" here:

docker-calibre-web/root/etc/s6-overlay/s6-rc.d/svc-calibre-web/run

Line 8 in 75774e6

cd /app/calibre-web s6-setuidgid abc python3 /app/calibre-web/cps.py

[aptalca]

That's not a proper solution. You need to fix the env vars you're setting.

https://info.linuxserver.io/issues/2023-05-22-portainer/

[radcki]

Right, as reference for others - when compared to fresh deployment I was missing "/lsiopy/bin" in PATH variable.

[aptalca]

The real solution is that you should not be setting the PATH variable at all. It's meant to be an internal var that is set in the image, not externally in compose or docker run