Files
langflow/docker_example
Gabriel Luiz Freitas Almeida 3d82ca3634 fix: resolve LANGFLOW_CONFIG_DIR to absolute and update docker compose to use absolute path (#10106)
* fix: Resolve relative paths to absolute in Settings class

Added functionality to resolve relative paths to absolute paths in the Settings class to ensure correct handling of directory creation. This change improves robustness when dealing with user-defined paths.

* fix: Update LANGFLOW_CONFIG_DIR path in docker-compose.yml

Changed the LANGFLOW_CONFIG_DIR environment variable from a relative path to an absolute path to ensure correct directory resolution in the Docker setup. This improves the reliability of the configuration in various deployment environments.
2025-10-03 17:44:52 +00:00
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Running LangFlow with Docker

This guide will help you get LangFlow up and running using Docker and Docker Compose.

Prerequisites

  • Docker
  • Docker Compose

Steps

  1. Clone the LangFlow repository:

    git clone https://github.com/langflow-ai/langflow.git
    
  2. Navigate to the docker_example directory:

    cd langflow/docker_example
    
  3. Run the Docker Compose file:

    docker compose up
    

LangFlow will now be accessible at http://localhost:7860/.

Docker Compose Configuration

The Docker Compose configuration spins up two services: langflow and postgres.

LangFlow Service

The langflow service uses the langflowai/langflow:latest Docker image and exposes port 7860. It depends on the postgres service.

Environment variables:

  • LANGFLOW_DATABASE_URL: The connection string for the PostgreSQL database.
  • LANGFLOW_CONFIG_DIR: The directory where LangFlow stores logs, file storage, monitor data, and secret keys.

Volumes:

  • langflow-data: This volume is mapped to /app/langflow in the container.

PostgreSQL Service

The postgres service uses the postgres:16 Docker image and exposes port 5432.

Environment variables:

  • POSTGRES_USER: The username for the PostgreSQL database.
  • POSTGRES_PASSWORD: The password for the PostgreSQL database.
  • POSTGRES_DB: The name of the PostgreSQL database.

Volumes:

  • langflow-postgres: This volume is mapped to /var/lib/postgresql/data in the container.

Switching to a Specific LangFlow Version

If you want to use a specific version of LangFlow, you can modify the image field under the langflow service in the Docker Compose file. For example, to use version 1.0-alpha, change langflowai/langflow:latest to langflowai/langflow:1.0-alpha.