📦 chore(deploy): add deployment files and configurations for Docker Compose setup

deploy/backend.env

@@ -0,0 +1,18 @@
+# Database configuration
+DB_USER=langflow
+DB_PASSWORD=langflow
+DB_HOST=db
+DB_PORT=5432
+DB_NAME=langflow
+
+# Logging configuration
+LOG_LEVEL=debug
+
+# Cache configuration
+LANGFLOW_CACHE_TYPE=redis
+
+# Redis configuration
+LANGFLOW_REDIS_HOST=queue
+LANGFLOW_REDIS_PORT=6379
+LANGFLOW_REDIS_DB=0
+LANGFLOW_REDIS_EXPIRE=3600

deploy/base.Dockerfile

@@ -0,0 +1,87 @@
+
+
+# syntax=docker/dockerfile:1
+# Keep this syntax directive! It's used to enable Docker BuildKit
+
+# Based on https://github.com/python-poetry/poetry/discussions/1879?sort=top#discussioncomment-216865
+# but I try to keep it updated (see history)
+
+################################
+# PYTHON-BASE
+# Sets up all our shared environment variables
+################################
+FROM python:3.10-slim as python-base
+
+# python
+ENV PYTHONUNBUFFERED=1 \
+    # prevents python creating .pyc files
+    PYTHONDONTWRITEBYTECODE=1 \
+    \
+    # pip
+    PIP_DISABLE_PIP_VERSION_CHECK=on \
+    PIP_DEFAULT_TIMEOUT=100 \
+    \
+    # poetry
+    # https://python-poetry.org/docs/configuration/#using-environment-variables
+    POETRY_VERSION=1.5.1 \
+    # make poetry install to this location
+    POETRY_HOME="/opt/poetry" \
+    # make poetry create the virtual environment in the project's root
+    # it gets named `.venv`
+    POETRY_VIRTUALENVS_IN_PROJECT=true \
+    # do not ask any interactive question
+    POETRY_NO_INTERACTION=1 \
+    \
+    # paths
+    # this is where our requirements + virtual environment will live
+    PYSETUP_PATH="/opt/pysetup" \
+    VENV_PATH="/opt/pysetup/.venv"
+
+
+# prepend poetry and venv to path
+ENV PATH="$POETRY_HOME/bin:$VENV_PATH/bin:$PATH"
+
+
+################################
+# BUILDER-BASE
+# Used to build deps + create our virtual environment
+################################
+FROM python-base as builder-base
+RUN apt-get update \
+    && apt-get install --no-install-recommends -y \
+    # deps for installing poetry
+    curl \
+    # deps for building python deps
+    build-essential
+
+# install poetry - respects $POETRY_VERSION & $POETRY_HOME
+# The --mount will mount the buildx cache directory to where
+# Poetry and Pip store their cache so that they can re-use it
+RUN --mount=type=cache,target=/root/.cache \
+    curl -sSL https://install.python-poetry.org | python3 -
+
+# copy project requirement files here to ensure they will be cached.
+WORKDIR $PYSETUP_PATH
+COPY ./poetry.lock ./pyproject.toml ./
+COPY ./src/backend ./src/backend
+# Copy README.md to the build context
+COPY ./README.md ./
+# install runtime deps - uses $POETRY_VIRTUALENVS_IN_PROJECT internally
+RUN --mount=type=cache,target=/root/.cache \
+    poetry install --without dev --extras deploy
+
+
+################################
+# DEVELOPMENT
+# Image used during development / testing
+################################
+FROM python-base as development
+WORKDIR $PYSETUP_PATH
+
+# copy in our built poetry + venv
+COPY --from=builder-base $POETRY_HOME $POETRY_HOME
+COPY --from=builder-base $PYSETUP_PATH $PYSETUP_PATH
+
+# quicker install as runtime deps are already installed
+RUN --mount=type=cache,target=/root/.cache \
+    poetry install --with=dev --extras deploy

deploy/celeryworker.env

@@ -0,0 +1,8 @@
+LANGFLOW_CACHE_TYPE=redis
+LANGFLOW_REDIS_HOST=queue
+LANGFLOW_REDIS_PORT=6379
+LANGFLOW_REDIS_DB=0
+LANGFLOW_REDIS_EXPIRE=3600
+BROKER_URL=redis://queue:6379/0
+RESULT_BACKEND=redis://queue:6379/0
+C_FORCE_ROOT="true # ! Only for development"

deploy/db.env

@@ -0,0 +1,3 @@
+POSTGRES_USER=langflow
+POSTGRES_PASSWORD=langflow
+POSTGRES_DB=langflow

deploy/docker-compose.yml

@@ -0,0 +1,83 @@
+version: "3"
+
+services:
+  backend:
+    build:
+      context: ../
+      dockerfile: base.Dockerfile
+    # user: your-non-root-user # Make sure your Dockerfile creates this user
+    depends_on:
+      - queue
+      - db
+    env_file:
+      - ./backend.env
+    ports:
+      - "7860:7860"
+    volumes:
+      - ./:/app
+      - ./startup-backend.sh:/startup-backend.sh # Ensure the paths match
+    command: /startup-backend.sh # Fixed the path
+
+  db:
+    image: postgres:15.4
+    env_file:
+      - ./db.env
+    ports:
+      - "5432:5432"
+
+  pgadmin:
+    image: dpage/pgadmin4
+    env_file:
+      - ./pgadmin.env
+    ports:
+      - "5050:80"
+    depends_on:
+      - db
+    volumes:
+      - ./pgadmin:/var/lib/pgadmin
+
+  queue:
+    image: redis:6.2.5 # Use a specific version
+    ports:
+      - "6379:6379"
+
+  celeryworker:
+    # user: your-non-root-user
+    depends_on:
+      - queue
+    env_file:
+      - ./celeryworker.env
+    build:
+      context: ../
+      dockerfile: base.Dockerfile
+    command: celery -A langflow.worker.celery_app worker --loglevel=INFO
+
+  flower:
+    # user: your-non-root-user
+    networks:
+      - default
+    depends_on:
+      - queue
+    build:
+      context: ../
+      dockerfile: base.Dockerfile
+    env_file:
+      - ./flower.env
+    command: celery -A langflow.worker.celery_app --broker=redis://queue:6379/0 flower --port=5555
+    ports:
+      - "5555:5555"
+
+  frontend:
+    # user: your-non-root-user
+    build:
+      context: ../src/frontend
+      dockerfile: Dockerfile
+      args:
+        - BACKEND_URL=http://backend:7860
+    depends_on:
+      - backend
+    env_file:
+      - ./frontend.env
+    ports:
+      - "80:80"
+    restart: on-failure

deploy/flower.env

@@ -0,0 +1,5 @@
+LANGFLOW_CACHE_TYPE=redis
+LANGFLOW_REDIS_HOST=queue
+LANGFLOW_REDIS_PORT=6379
+LANGFLOW_REDIS_DB=0
+LANGFLOW_REDIS_EXPIRE=3600

deploy/frontend.env

@@ -0,0 +1,3 @@
+
+VITE_PROXY_TARGET=http://backend:7860/api/
+BACKEND_URL=http://backend:7860

deploy/pgadmin.env

@@ -0,0 +1,2 @@
+PGADMIN_DEFAULT_EMAIL=admin@admin.com
+PGADMIN_DEFAULT_PASSWORD=admin

deploy/startup-backend.sh

@@ -0,0 +1,6 @@
+#!/bin/bash
+
+export LANGFLOW_DATABASE_URL="postgresql://${DB_USER}:${DB_PASSWORD}@${DB_HOST}:${DB_PORT}/${DB_NAME}"
+
+# Your command to start the backend
+exec uvicorn --factory langflow.main:create_app --host 0.0.0.0 --port 7860 --reload --log-level ${LOG_LEVEL:-info}