ptc application on docker

[PierreLouis94]

Hello,
so i am trying to run my ptc application on a docker container using some templates found on the internet but it doesnt seem to work well.

Dockerfile

FROM kitware/trame:py3.10-glvnd-2025-01

RUN apt-get update && apt-get install -y libc-bin && apt-get upgrade -y libc-bin && apt-get clean
  
RUN install -d -o trame-user -g trame-user /deploy
  
ARG PV_URL='https://www.paraview.org/files/v5.13/ParaView-5.13.0-egl-MPI-Linux-Python3.10-x86_64.tar.gz'
RUN mkdir -p /opt/paraview && cd /opt/paraview && wget -qO- $PV_URL | tar --strip-components=1 -xzv
ENV TRAME_PARAVIEW=/opt/paraview
ENV TRAME_CLIENT_TYPE=vue2
  
COPY --chown=trame-user:trame-user . /deploy

RUN /opt/trame/entrypoint.sh build

and my apps.yml:

trame:
  cmd:
    - /opt/paraview/bin/pvpython
    - --force-offscreen-rendering
    - ./ptc_visualizer/visualizer.py

Visualizer: # /Visualizer.html or /?name=Visualizer&data=...
  cmd:
    - /opt/paraview/bin/pvpython
    - --force-offscreen-rendering
    - ./ptc_visualizer/visualizer.py

as my script that I would run locally is $PVPYTHON --force-offscreen-rendering ./ptc_visualizer/visualizer.py

Whenever I run the dockerfile i get.

Starting server...
Starting the wslink launcher at
======== Running on http://0.0.0.0:9000 ========
(Press CTRL+C to quit)
Error handling request
Traceback (most recent call last):
  File "/deploy/server/venv/lib/python3.10/site-packages/aiohttp/web_protocol.py", line 480, in _handle_request
    resp = await request_handler(request)
  File "/deploy/server/venv/lib/python3.10/site-packages/aiohttp/web_app.py", line 569, in _handle
    return await handler(request)
  File "/deploy/server/venv/lib/python3.10/site-packages/wslink/backends/aiohttp/launcher.py", line 97, in handle_post
    return await self._waitForReady(session, request)
  File "/deploy/server/venv/lib/python3.10/site-packages/wslink/backends/aiohttp/launcher.py", line 109, in _waitForReady
    if self.process_manager.isReady(session, count):
  File "/deploy/server/venv/lib/python3.10/site-packages/wslink/launcher.py", line 480, in isReady
    if not self.isRunning(id) and count < 60:
  File "/deploy/server/venv/lib/python3.10/site-packages/wslink/launcher.py", line 468, in isRunning
    return self.processes[id].poll() is None
KeyError: '88e59c7a-df13-11ef-bb08-0242ac110002'

What could be the reason

[jourdain]

I see several issues:

1. ptc is vue3 and in your docker you have ENV TRAME_CLIENT_TYPE=vue2
2. what do you have in your requirements.txt?
3. ./ptc_visualizer/visualizer.py should be an absolute path

Then it would be nice to see the failing session log, not the launcher log.