Local development: use nodemon to watch files instead of watchmedo (#9338)

* Local development: use `nodemon` to watch files instead of `watchmedo`

We have been dealing with a problem with `watchmedo` that restart the process
when it shouldn't be restarted and it doesn't restart it when it should.

I got tired debugging `watchmedo` and I was suggested to give it a try to
`nodemon` because we are already using it in other projects. I'm not super happy
adding a node dependency to the Dockerfile, but I didn't find a better way to do it.

I did some tests with the configuration proposed and it seemed to work pretty
well. I'm sure we will find some edge cases, but we always can tune it a little
more later.

Closes #8802

* Local development: remove `watchdo` Python package

It's not required anymore since we are using `nodemon` now.

Author: humitos

dockerfiles/Dockerfile

@@ -29,7 +29,8 @@ RUN apt-get -y install \
         sqlite \
         netcat \
         telnet \
-        lsb-release
+        lsb-release \
+        npm
 
 # Gets the MinIO mc client used to add buckets upon initialization
 # If this client should have issues running inside this image, it is also
@@ -38,6 +39,8 @@ RUN apt-get -y install \
 RUN curl -s -q https://dl.min.io/client/mc/release/linux-amd64/archive/mc.RELEASE.2022-06-11T21-10-36Z -o /usr/bin/mc && \
     chmod +x /usr/bin/mc
 
+RUN npm install -g nodemon
+
 # Uncomment en_US.UTF-8 locale and generate it
 RUN sed -i -e 's/# en_US.UTF-8 UTF-8/en_US.UTF-8 UTF-8/' /etc/locale.gen && \
     locale-gen

requirements/docker.txt

@@ -11,11 +11,6 @@ django-redis-cache==3.0.1
 # For resizing images
 pillow==9.1.0
 
-# Local debugging tools
-watchdog==2.1.7
-# watchdog dependency
-argh==0.26.2
-
 # run tests
 tox==3.25.0