Add an image for swh-web service

Related to sysadm-environment#4812 (closed)

apps/swh-web/Dockerfile

+# Deeply inspired from the Dockerfile of the swh-storage project
+FROM python:3.10-bullseye
+
+RUN apt-get -y update && \
+    apt-get -y upgrade && \
+    apt-get install -y libcmph-dev librdkafka-dev && \
+    apt clean && \
+    addgroup --gid 1000 swh && \
+    useradd --gid 1000 --uid 1000 -m -d /srv/swh swh && \
+    mkdir -p /etc/softwareheritage /var/log/softwareheritage/webapp && \
+    chown swh:swh /var/log/softwareheritage/webapp
+
+USER swh
+WORKDIR /srv/swh
+
+COPY --chown=swh:swh requirements-frozen.txt /srv/swh
+COPY --chown=swh:swh entrypoint.sh /srv/swh
+
+ENV PYTHONPATH=/srv/swh
+ENV PATH=/srv/swh/.local/bin:$PATH
+
+RUN chmod u+x /srv/swh/entrypoint.sh && \
+    /usr/local/bin/python -m pip install --upgrade pip && \
+    pip install --no-cache-dir -r requirements-frozen.txt && \
+    pip install gunicorn
+
+ENV SWH_CONFIG_FILENAME=/etc/softwareheritage/config.yml
+ENV PORT 5004
+EXPOSE $PORT
+ENV THREADS 2
+ENV WORKERS 2
+ENV TIMEOUT 3600
+ENV DJANGO_SETTINGS_MODULE swh.web.settings.production
+ENV SWH_MAIN_PACKAGE swh.web
+
+ENTRYPOINT ["/srv/swh/entrypoint.sh"]