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Slimcat: shrink size of 4cat image #500

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3b3c1c9
add Dockerfile_slim, mod docker-compose_build.yml to build it
dale-wahl Jun 10, 2025
956d776
add slim tag
dale-wahl Jun 10, 2025
33519ed
keep tests/ and .git
dale-wahl Jun 10, 2025
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34 changes: 17 additions & 17 deletions docker-compose_build.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -8,36 +8,36 @@ services:
- POSTGRES_DB=${POSTGRES_DB}
- POSTGRES_HOST_AUTH_METHOD=${POSTGRES_HOST_AUTH_METHOD}
volumes:
- ./data/postgres/:/var/lib/postgresql/data/
# - 4cat_db:/var/lib/postgresql/data/
# - ./data/postgres/:/var/lib/postgresql/data/
- 4cat_db:/var/lib/postgresql/data/
healthcheck:
test: [ "CMD-SHELL", "pg_isready -U $${POSTGRES_USER}" ]
interval: 5s
timeout: 5s
retries: 5

backend:
image: 4cat
image: 4cat:slim
build:
context: .
dockerfile: docker/Dockerfile
dockerfile: docker/Dockerfile_slim
container_name: 4cat_backend
env_file:
- .env
depends_on:
db:
condition: service_healthy
volumes:
- ./data/datasets/:/usr/src/app/data/
- ./data/config/:/usr/src/app/config/
- ./data/logs/:/usr/src/app/logs/
# - 4cat_data:/usr/src/app/data/
# - 4cat_config:/usr/src/app/config/
# - 4cat_logs:/usr/src/app/logs/
# - ./data/datasets/:/usr/src/app/data/
# - ./data/config/:/usr/src/app/config/
# - ./data/logs/:/usr/src/app/logs/
- 4cat_data:/usr/src/app/data/
- 4cat_config:/usr/src/app/config/
- 4cat_logs:/usr/src/app/logs/
entrypoint: docker/docker-entrypoint.sh

frontend:
image: 4cat
image: 4cat:slim
container_name: 4cat_frontend
env_file:
- .env
Expand All @@ -48,12 +48,12 @@ services:
- ${SERVER_BIND_ADDRESS}:${PUBLIC_PORT}:5000
- ${TELEGRAM_PORT}:443
volumes:
- ./data/datasets/:/usr/src/app/data/
- ./data/config/:/usr/src/app/config/
- ./data/logs/:/usr/src/app/logs/
# - 4cat_data:/usr/src/app/data/
# - 4cat_config:/usr/src/app/config/
# - 4cat_logs:/usr/src/app/logs/
# - ./data/datasets/:/usr/src/app/data/
# - ./data/config/:/usr/src/app/config/
# - ./data/logs/:/usr/src/app/logs/
- 4cat_data:/usr/src/app/data/
- 4cat_config:/usr/src/app/config/
- 4cat_logs:/usr/src/app/logs/
command: ["docker/wait-for-backend.sh"]

volumes:
Expand Down
103 changes: 103 additions & 0 deletions docker/Dockerfile_slim
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Original file line number Diff line number Diff line change
@@ -0,0 +1,103 @@
# Multi-stage build for 4CAT - Slim version
# Stage 1: Build stage with all build dependencies
FROM python:3.11-slim as builder

# Install build dependencies
RUN apt-get update && apt-get install -y \
# Build tools
build-essential \
gcc \
g++ \
# Development headers
libpq-dev \
python3-dev \
postgresql-server-dev-all \
# Git for any git-based dependencies
git \
# Additional build dependencies that might be needed
pkg-config \
libffi-dev \
libssl-dev \
# Clean up cache
&& apt-get clean \
&& rm -rf /var/lib/apt/lists/*

# Set working directory
WORKDIR /usr/src/app

# Set environment variables for building
ENV PYTHONUNBUFFERED=1
ENV PIP_NO_CACHE_DIR=1
ENV PIP_DISABLE_PIP_VERSION_CHECK=1

# Copy requirements and setup files first
COPY ./requirements.txt /usr/src/app/requirements.txt
COPY ./setup.py /usr/src/app/setup.py
COPY ./VERSION /usr/src/app/VERSION
COPY ./README.md /usr/src/app/README.md

# Copy only the extensions directory for dependency detection
COPY ./extensions /usr/src/app/extensions

# Create minimal directory structure that setup.py expects
RUN mkdir -p /usr/src/app/backend /usr/src/app/webtool /usr/src/app/datasources
RUN touch /usr/src/app/backend/__init__.py /usr/src/app/webtool/__init__.py /usr/src/app/datasources/__init__.py

# Install Python dependencies to a virtual environment
RUN python -m venv /opt/venv
ENV PATH="/opt/venv/bin:$PATH"

# Upgrade pip and install wheel first
RUN pip install --upgrade pip

# Install build dependencies for Python packages
RUN pip install --no-cache-dir setuptools==78.1.0 wheel==0.46.1

# Install requirements with verbose output for debugging
RUN pip install --no-cache-dir --verbose -r requirements.txt

# Install gunicorn
RUN pip install --no-cache-dir gunicorn

# Stage 2: Runtime stage with minimal dependencies
FROM python:3.11-slim as runtime

# Install only runtime dependencies
RUN apt-get update && apt-get install -y \
# Runtime libraries only
libpq5 \
# Tools needed at runtime
curl \
netcat-traditional \
postgresql-client \
# Git for application use
git \
# Video processing (if needed)
#ffmpeg \
# Clean up
&& apt-get clean \
&& rm -rf /var/lib/apt/lists/* \
&& rm -rf /tmp/* \
&& rm -rf /var/tmp/*

# Copy virtual environment from builder stage
COPY --from=builder /opt/venv /opt/venv
ENV PATH="/opt/venv/bin:$PATH"

# Set working directory
WORKDIR /usr/src/app

# Ensure Python outputs everything
ENV PYTHONUNBUFFERED=1

# Copy application code
COPY . /usr/src/app/

# Set permissions for scripts
RUN chmod +x docker/wait-for-backend.sh docker/docker-entrypoint.sh

# Remove unnecessary files to save space
RUN find /usr/src/app -name "*.pyc" -delete && \
find /usr/src/app -name "__pycache__" -type d -exec rm -rf {} + 2>/dev/null || true && \
find /usr/src/app -name "*.pyo" -delete && \
find /usr/src/app -name ".pytest_cache" -type d -exec rm -rf {} + 2>/dev/null || true
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