Files
langflow/docker/build_and_push_backend.Dockerfile
Eric Hare 45325f6376 feat: Langflow SDK and Flow DevOps API Toolkit (#12245)
* feat(sdk): add langflow-sdk Python client package

* feat(lfx): add Flow DevOps CLI toolkit

* feat(api): add flow upsert, export normalization, ZIP upload

* chore: CI coverage merge, Docker fixes, dependency updates

* Address CQ5 review / import bug

* Update test_status_command.py

* Update test_status_command.py

* Fix more tests

* Review edits

* Review edits

* Fix tests

* Follow up review updates

* Refactor common client code

* Update templates and comp index

* [autofix.ci] apply automated fixes

* Update test_database.py

* Updates from review comments

* Fix push interface to match the rest

* Update push.py

* Update push.py

---------

Co-authored-by: autofix-ci[bot] <114827586+autofix-ci[bot]@users.noreply.github.com>
2026-04-02 16:13:13 +00:00

98 lines
3.2 KiB
Docker

# syntax=docker/dockerfile:1
# Keep this syntax directive! It's used to enable Docker BuildKit
#
# Backend-only Langflow image
# - No frontend code or assets
# - No Playwright
################################
# BUILDER
################################
FROM ghcr.io/astral-sh/uv:python3.12-bookworm-slim AS builder
WORKDIR /app
# Required for apify-client
ENV RUSTFLAGS='--cfg reqwest_unstable'
# Install build dependencies
RUN apt-get update \
&& apt-get upgrade -y \
&& apt-get install --no-install-recommends -y \
build-essential \
gcc \
git \
curl \
&& apt-get clean \
&& rm -rf /var/lib/apt/lists/*
# Copy only backend source (excludes frontend)
COPY ./src/backend ./src/backend
COPY ./src/lfx ./src/lfx
COPY ./src/sdk ./src/sdk
# Create venv and install langflow-base with dependencies
# Using uv pip instead of uv sync to avoid workspace complexities
RUN uv venv /app/.venv
ENV PATH="/app/.venv/bin:$PATH"
ENV VIRTUAL_ENV="/app/.venv"
RUN --mount=type=cache,target=/root/.cache/uv \
uv pip install ./src/sdk ./src/lfx "./src/backend/base[complete,postgresql]"
################################
# RUNTIME
################################
FROM python:3.12.13-slim-trixie AS runtime
# Install minimal runtime dependencies
RUN apt-get update \
&& apt-get upgrade -y \
&& apt-get install --no-install-recommends -y \
curl \
git \
libpq5 \
gnupg \
xz-utils \
&& apt-get clean \
&& rm -rf /var/lib/apt/lists/*
COPY --from=builder /usr/local/bin/uv /usr/local/bin/uv
COPY --from=builder /usr/local/bin/uvx /usr/local/bin/uvx
# Install Node.js (required for npx-based MCP stdio servers)
RUN ARCH=$(dpkg --print-architecture) \
&& if [ "$ARCH" = "amd64" ]; then NODE_ARCH="x64"; \
elif [ "$ARCH" = "arm64" ]; then NODE_ARCH="arm64"; \
else NODE_ARCH="$ARCH"; fi \
&& NODE_VERSION=$(curl -fsSL https://nodejs.org/dist/latest-v22.x/ \
| sed -nE "s/.*node-v([0-9]+\.[0-9]+\.[0-9]+)-linux-${NODE_ARCH}\.tar\.xz.*/\1/p" \
| head -1) \
&& if [ -z "$NODE_VERSION" ]; then echo "ERROR: Could not determine Node.js version" && exit 1; fi \
&& curl -fsSL "https://nodejs.org/dist/v${NODE_VERSION}/node-v${NODE_VERSION}-linux-${NODE_ARCH}.tar.xz" \
| tar -xJ -C /usr/local --strip-components=1
# Create non-root user
RUN useradd --uid 1000 --gid 0 --no-create-home --home-dir /app/data user
# Copy only the virtual environment
COPY --from=builder --chown=1000:0 /app/.venv /app/.venv
ENV PATH="/app/.venv/bin:$PATH"
# Create home directory and ensure proper ownership
# The user needs write access to /app/data (home) and /app (workdir)
# Note: .venv is already owned by 1000:0 via COPY --chown above, so no recursive chown needed
RUN mkdir -p /app/data && chown -R 1000:0 /app/data && chown 1000:0 /app
LABEL org.opencontainers.image.title=langflow-backend
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
USER user
WORKDIR /app
ENV LANGFLOW_HOST=0.0.0.0
ENV LANGFLOW_PORT=7860
CMD ["python", "-m", "langflow", "run", "--backend-only"]