The Dockerfile you gave me gives me this error message: #17 39.01 npm ERR! gyp ERR! find Python Python is not set from the command line or npm configuration 

How can I avoid it?
The error message you're encountering indicates that the Node.js build process is trying to use `node-gyp`, which requires Python to be installed and properly configured. This is a common issue when building native modules in a Node.js environment.

Here’s how you can resolve this issue in your Dockerfile:

1. **Install Python**: Ensure that Python is installed in your Docker image. You typically want to install Python 2.7, as `node-gyp` may not work with Python 3.x in some cases.

2. **Set Python Environment Variable**: You may also need to set the `PYTHON` environment variable to point to the Python executable.

Here's an example of how your Dockerfile might look after adding the necessary steps:

```Dockerfile
# Use an official Node.js runtime as a parent image
FROM node:14

# Set the working directory
WORKDIR /app

# Install Python and other required build tools
RUN apt-get update && apt-get install -y \
    python \
    make \
    g++ \
    && apt-get clean \
    && rm -rf /var/lib/apt/lists/*

# Set the Python environment variable
ENV PYTHON=/usr/bin/python

# Copy package.json and package-lock.json
COPY package*.json ./

# Install dependencies
RUN npm install

# Copy the rest of your application code
COPY . .

# Expose the port your app runs on
EXPOSE 3000

# Command
You can set the Python interpreter from the command line or in your npm configuration by running "npm config set python PATH_TO_PYTHON"