Add convenience functions, update Docker setup, and integrate Webpack for building WebRTC internals exporter (#3)

Reviewed-on: #3
Co-authored-by: Mirko Milovanovic <mir_ko@me.com>
Co-committed-by: Mirko Milovanovic <mir_ko@me.com>

Monolith.dockerfile

@@ -0,0 +1,50 @@
+FROM node:22.14.0-bookworm-slim AS build
+
+# Copy the webrtc-internals-exporter files
+COPY webrtc-internals-exporter /tmp/webrtc-internals-exporter
+
+WORKDIR /tmp/webrtc-internals-exporter/webpack
+
+# Install dependencies
+RUN --mount=type=cache,target=/root/.npm \
+    npm install
+
+# Build the project
+RUN npm run build
+
+FROM selenium/standalone-chromium:129.0
+
+# Install Python-virtualenv
+RUN sudo apt-get update && sudo sudo apt-get install -y python3-venv
+
+WORKDIR /tmp
+
+# Install Telegraf
+RUN wget -q https://repos.influxdata.com/influxdata-archive_compat.key && \
+    echo '393e8779c89ac8d958f81f942f9ad7fb82a25e133faddaf92e15b16e6ac9ce4c influxdata-archive_compat.key' | sha256sum -c && \
+    cat influxdata-archive_compat.key | gpg --dearmor | sudo tee /etc/apt/trusted.gpg.d/influxdata-archive_compat.gpg > /dev/null && \
+    echo 'deb [signed-by=/etc/apt/trusted.gpg.d/influxdata-archive_compat.gpg] https://repos.influxdata.com/debian stable main' | sudo tee /etc/apt/sources.list.d/influxdata.list && \
+    sudo apt-get update && sudo apt-get install -y telegraf
+
+# Create and activate a virtual environment
+RUN python3 -m venv ./venv
+ENV PATH="/tmp/venv/bin:$PATH"
+
+# Install dependencies with venv
+COPY requirements.txt ./requirements.txt
+RUN ./venv/bin/pip install -r ./requirements.txt
+
+# Copy files
+COPY main.py .
+COPY utils/ ./utils
+COPY telegraf.conf ./telegraf.conf
+COPY webrtc-internals-exporter /tmp/webrtc-internals-exporter
+COPY --from=build /tmp/webrtc-internals-exporter/background.bundle.js /tmp/webrtc-internals-exporter/background.bundle.js
+COPY --chown="${SEL_UID}:${SEL_GID}" monolith-entrypoint.sh /opt/bin/collector.sh
+
+# Run the entrypoint
+RUN chmod +x /opt/bin/collector.sh
+ENTRYPOINT ["/opt/bin/collector.sh"]
+
+# Healthcheck
+HEALTHCHECK --interval=5s --timeout=10s --retries=5 --start-period=5s CMD curl -f http://localhost:9092/heartbeat || exit 1