Create Dockerfile

Dockerfile

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+# Start with a base image
+FROM ubuntu:22.04
+
+# Set environment variables for non-interactive installs
+ENV DEBIAN_FRONTEND=noninteractive
+
+# Install core dependencies for Paperless-ngx
+RUN apt-get update && \
+    apt-get install -y --no-install-recommends \
+    python3 python3-pip python3-dev \
+    imagemagick fonts-liberation gnupg \
+    libpq-dev default-libmysqlclient-dev pkg-config \
+    libmagic-dev libzbar0 poppler-utils \
+    unpaper ghostscript icc-profiles-free qpdf liblept5 libxml2 \
+    pngquant zlib1g tesseract-ocr tesseract-ocr-eng \
+    build-essential python3-setuptools python3-wheel \
+    redis-server postgresql postgresql-client \
+    supervisor nano # Add supervisor for process management
+    
+# Clean up apt caches to reduce image size
+RUN rm -rf /var/lib/apt/lists/*
+
+# Create user and directories for Paperless-ngx
+RUN adduser --system --home /opt/paperless --group paperless
+WORKDIR /opt/paperless
+
+# Clone Paperless-ngx (or copy if you have it locally)
+# Using a specific release is recommended for stability
+RUN apt-get update && apt-get install -y git && \
+    git clone https://github.com/paperless-ngx/paperless-ngx.git . && \
+    git checkout v2.17.1 # Replace with the version you want
+
+# Build frontend (if cloning from git)
+RUN python3 -m venv venv && . venv/bin/activate && \
+    npm install -g yarn && \
+    yarn install --cwd src/paperless_frontend && \
+    yarn build --cwd src/paperless_frontend && \
+    deactivate
+
+# Install Python dependencies
+COPY requirements.txt .
+RUN pip3 install -r requirements.txt
+
+# --- Configure internal Redis and PostgreSQL ---
+# These steps are highly simplified. You'd need to properly configure
+# PostgreSQL for a non-root user and ensure it starts correctly.
+# For Redis, it's usually simpler, but still needs to be started correctly.
+
+# Configure PostgreSQL (simple example, needs hardening for production)
+RUN service postgresql start && \
+    sudo -u postgres psql -c "CREATE USER paperless WITH PASSWORD 'your_db_password';" && \
+    sudo -u postgres psql -c "CREATE DATABASE paperless OWNER paperless;" && \
+    service postgresql stop
+
+# Create Paperless-ngx specific directories
+RUN mkdir -p media data consume export
+RUN chown -R paperless:paperless media data consume export
+
+# --- Paperless-ngx Configuration ---
+# Set environment variables that Paperless-ngx will read
+# These can also be read from a paperless.conf file, but env vars are easier in Docker
+ENV PAPERLESS_REDIS="redis://localhost:6379/0"
+ENV PAPERLESS_DBENGINE="postgresql"
+ENV PAPERLESS_DBHOST="localhost"
+ENV PAPERLESS_DBNAME="paperless"
+ENV PAPERLESS_DBUSER="paperless"
+ENV PAPERLESS_DBPASS="your_db_password"
+ENV PAPERLESS_SECRET_KEY="a_very_long_and_random_string_for_huggingface" # IMPORTANT: Generate this securely!
+ENV PAPERLESS_CONSUMPTION_DIR="/opt/paperless/consume"
+ENV PAPERLESS_DATA_DIR="/opt/paperless/data"
+ENV PAPERLESS_MEDIA_ROOT="/opt/paperless/media"
+ENV PAPERLESS_PORT="7860" # Crucial for Hugging Face Spaces
+ENV PAPERLESS_BIND_ADDR="0.0.0.0" # Bind to all interfaces
+ENV PAPERLESS_WEBSERVER_WORKERS=1 # Save memory on Hugging Face Spaces
+
+# Optional: Disable some resource-intensive features for less powerful devices
+ENV PAPERLESS_OCR_PAGES=1
+ENV PAPERLESS_ENABLE_NLTK=false
+ENV PAPERLESS_OCR_CLEAN="none"
+
+# --- Database Migrations and Superuser Creation ---
+# This needs to run AFTER the database is up and configured.
+# We'll put it in a startup script for supervisord.
+
+# --- Supervisord Configuration ---
+COPY supervisord.conf /etc/supervisor/conf.d/supervisord.conf
+
+# Exposed port for Hugging Face Spaces
+EXPOSE 7860
+
+# Command to run supervisord, which will start all services
+CMD ["/usr/bin/supervisord", "-n", "-c", "/etc/supervisor/supervisord.conf"]