Sphinx Docker Deployment - docker

Question

I'm trying to create documentation website with docker-compose. I followed this tutorial. In local, I can run it successfully but when I try run container in server it returns me this error:
docs_1 | 2022-09-06T14:34:44.430819779Z [sphinx-autobuild] > sphinx-build -b html /etc/Sphinx/source /etc/Sphinx/build
docs_1 | 2022-09-06T14:34:44.807214119Z
docs_1 | 2022-09-06T14:34:44.807251454Z Application error:
docs_1 | 2022-09-06T14:34:44.807257159Z Cannot find source directory (/etc/Sphinx/source)
docs_1 | 2022-09-06T14:34:44.867591050Z Command exited with exit code: 2
docs_1 | 2022-09-06T14:34:44.867628073Z The server will continue serving the build folder, but the contents being served are no longer in sync with the documentation sources. Please fix the cause of the error above or press Ctrl+C to stop the server.
Here is my Dockerfile
FROM alpine:latest
WORKDIR /etc/
RUN mkdir -p /etc/Sphinx/build
RUN apk add --no-cache python3 py3-pip make git
RUN pip install git+https://github.com/sphinx-doc/sphinx && \
pip install sphinx-autobuild
CMD sphinx-autobuild -b html --host 0.0.0.0 --port 80 /etc/Sphinx/source /etc/Sphinx/build
COPY /doc/ /etc/Sphinx/source
And my docker-compose.yml
version: "3.0"
services:
docs:
image: registry.digitalocean.com/my_username/${IMAGE}
container_name: docs
build: .docker
volumes:
- ./doc:/etc/Sphinx/source
ports:
- 8100:80
And this is the docker-compose.yml in the server:
docs:
image: registry.digitalocean.com/my_username/docs
restart: unless-stopped
ports:
- 8100:80
My folder structure is:
docs/
├─ .docker/
│ ├─ dev.env
│ ├─ Dockerfile
│ ├─ prod.env
├─ doc/
│ ├─ conf.py
│ ├─ index.rst
│ ├─ getting_started.rst
├─ docker-compose.yml
├─ README.md
I tried to copy files in doc folder to /etc/Sphinx/source but it returns me this error:
failed to compute cache key: "/doc" not found: not found
Any help will be appreciated, thanks.