sage docker error

[David Harvey]

I could not install sage on debian 13 trixie via apt, so I tried the
docker image instead.

It was working fine a few days ago, both command line and notebook
versions.

Today I am having problems with the notebook.

My command is:

sudo docker run \
--rm --interactive --tty \
--publish 8888:8888 \
--volume "$(pwd)":/home/sage/host \
sagemath/sagemath:latest \
sage-jupyter

When I run this, I get the following error message, over and over
again, a few seconds apart:

===============================

[W 2025-08-09 11:31:23.714 ServerApp] wrote error: 'Forbidden'
Traceback (most recent call last):
File "/home/sage/sage/local/var/lib/sage/venv-
python3.12.5/lib/python3.12/site-packages/tornado/web.py", line 1788,
in _execute
result = method(*self.path_args, **self.path_kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/sage/sage/local/var/lib/sage/venv-
python3.12.5/lib/python3.12/site-packages/tornado/web.py", line 3289,
in wrapper
url = self.get_login_url()
^^^^^^^^^^^^^^^^^^^^
File "/home/sage/sage/local/var/lib/sage/venv-
python3.12.5/lib/python3.12/site-
packages/jupyter_server/base/handlers.py", line 753, in get_login_url
raise web.HTTPError(403)
tornado.web.HTTPError: HTTP 403: Forbidden
[W 2025-08-09 11:31:23.717 ServerApp] 403 GET
/api/contents/host/elliptic-recurrences.ipynb/checkpoints?1754739083705
(@172.17.0.1) 3.68ms
referer=http://127.0.0.1:8888/notebooks/host/elliptic-recurrences.ipynb

===============================

It looks like it's trying to read the notebook elliptic-
recurrences.ipynb, which I was working on a few days ago. But my
understanding is that this should not be possible, because I am
starting up a new instance of the docker image, in a new container (I
checked the old one no longer exists via "docker container list --
all"). It should have completely forgotten about that notebook. It's
not even accessible in the current directory (which as you can see I
have mapped into the container via the --volume flag), because I am
starting it up in a different unrelated directory.

So what is going on? How can this instance "see" something from my
previous session? Is it somehow storing something on my actual
filesystem?

thanks

david

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[Dima Pasechnik]

A *normal* way to run jupyter in such a scenario would be on the host,
with it talking to
the remote/guest/container. (If it's the case it would explain what's going on).

I would be surprised if you ran it on a browser from the container,
this seems to be suboptimal.
(but I don't know much about docker)

Dima

>
> thanks
>
> david
>
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[Jan Groenewald]

Hi

On Sat, 9 Aug 2025 at 13:37, 'David Harvey' via sage-support <sage-s...@googlegroups.com> wrote:

I could not install sage on debian 13 trixie via apt, so I tried the
docker image instead.

It was working fine a few days ago, both command line and notebook
versions.

Today I am having problems with the notebook.

My command is:

sudo docker run \
    --rm --interactive --tty \
    --publish 8888:8888 \
    --volume "$(pwd)":/home/sage/host \
    sagemath/sagemath:latest \
    sage-jupyter

I just ran this on trixie and it works fine.

From a new tmp directory, with a notebook I opened in the previous session, I get

 

      File "/home/sage/sage/local/var/lib/sage/venv-python3.12.5/lib/python3.12/site-packages/jupyter_server/services/contents/filemanager.py", line 861, in get
        raise web.HTTPError(404, "No such file or directory: %s" % path)
    tornado.web.HTTPError: HTTP 404: Not Found (No such file or directory: host/Untitled.ipynb)

... as expected.

sagemath:latest seems to track the develop branch, which was updated 4 hours ago.

I'm not sure about your query about the docker image persistently seeing/writing into your folders.

Maybe try again, try it in the previous folder, and check the underlying permissions of folders.

Regards,

Jan