content: # syntax=docker/dockerfile:1
  # Keep this syntax directive! It's used to enable Docker BuildKit
  
  ################################
  # BUILDER-BASE
  # Used to build deps + create our virtual environment
  ################################
  
  # 1. use python:3.12.3-slim as the base image until https://github.com/pydantic/pydantic-core/issues/1292 gets resolved
  # 2. do not add --platform=$BUILDPLATFORM because the pydantic binaries must be resolved for the final architecture
  # Use a Python image with uv pre-installed
  FROM ghcr.io/astral-sh/uv:python3.12-bookworm-slim AS builder
  
  # Install the project into `/app`
  WORKDIR /app
  
  # Enable bytecode compilation
  ENV UV_COMPILE_BYTECODE=1
  
  # Copy from the cache instead of linking since it's a mounted volume
  ENV UV_LINK_MODE=copy
  
  RUN apt-get update \
      && apt-get upgrade -y \
      && apt-get install --no-install-recommends -y \
      # deps for building python deps
      build-essential \
      git \
      # npm
      npm \
      # gcc
      gcc \
      && apt-get clean \
      && rm -rf /var/lib/apt/lists/*
  
  RUN --mount=type=cache,target=/root/.cache/uv \
      --mount=type=bind,source=uv.lock,target=uv.lock \
      --mount=type=bind,source=README.md,target=README.md \
      --mount=type=bind,source=pyproject.toml,target=pyproject.toml \
      --mount=type=bind,source=src/backend/base/README.md,target=src/backend/base/README.md \
      --mount=type=bind,source=src/backend/base/uv.lock,target=src/backend/base/uv.lock \
      --mount=type=bind,source=src/backend/base/pyproject.toml,target=src/backend/base/pyproject.toml \
      uv sync --frozen --no-install-project --no-editable --extra nv-ingest --extra postgresql
  
  COPY ./src /app/src
  
  COPY src/frontend /tmp/src/frontend
  WORKDIR /tmp/src/frontend
  RUN --mount=type=cache,target=/root/.npm \
      npm ci \
      && npm run build \
      && cp -r build /app/src/backend/langflow/frontend \
      && rm -rf /tmp/src/frontend
  
  WORKDIR /app
  COPY ./pyproject.toml /app/pyproject.toml
  COPY ./uv.lock /app/uv.lock
  COPY ./README.md /app/README.md
  
  RUN --mount=type=cache,target=/root/.cache/uv \
      uv sync --frozen --no-editable --extra nv-ingest --extra postgresql
  
  ################################
  # RUNTIME
  # Setup user, utilities and copy the virtual environment only
  ################################
  FROM python:3.12.3-slim AS runtime
  
  RUN apt-get update \
      && apt-get upgrade -y \
      && apt-get install -y \
          curl \
          git \
          # Add PostgreSQL client libraries
          libpq5 \
          gnupg \
      && curl -fsSL https://deb.nodesource.com/setup_18.x | bash - \
      && apt-get install -y nodejs \
      && apt-get clean \
      && rm -rf /var/lib/apt/lists/* \
      && useradd user -u 1000 -g 0 --no-create-home --home-dir /app/data \
      && mkdir /data && chown -R 1000:0 /data
  
  COPY --from=builder --chown=1000 /app/.venv /app/.venv
  
  # curl is required for langflow health checks
  RUN apt-get update && apt-get install -y curl && rm -rf /var/lib/apt/lists/*
  
  # Place executables in the environment at the front of the path
  ENV PATH="/app/.venv/bin:$PATH"
  
  LABEL org.opencontainers.image.title=langflow
  LABEL org.opencontainers.image.authors=['Langflow']
  LABEL org.opencontainers.image.licenses=MIT
  LABEL org.opencontainers.image.url=https://github.com/langflow-ai/langflow
  LABEL org.opencontainers.image.source=https://github.com/langflow-ai/langflow
  
  WORKDIR /app
  
  ENV LANGFLOW_HOST=0.0.0.0
  ENV LANGFLOW_PORT=7860
  ENV LANGFLOW_EVENT_DELIVERY=polling
  
  USER 1000
  CMD ["python", "-m", "langflow", "run", "--host", "0.0.0.0", "--backend-only"]
  