Dockerfile

# Use the latest Node.js as the base image
FROM node:latest

# Set the working directory in the Docker container
WORKDIR /usr/src/app

# Clone the specific folder from the 5etools repository
RUN git clone --depth 1 --filter=blob:none --sparse https://github.com/5etools-mirror-1/5etools-mirror-1.github.io.git /tmp/5etools; \
    cd /tmp/5etools; \
    git sparse-checkout init --cone; \
    git sparse-checkout set data/spells; \
    mv /tmp/5etools/data/spells /usr/src/app/spells; \
    rm -rf /tmp/5etools


# Install the app dependencies
# A wildcard is used to ensure both package.json AND package-lock.json are copied
COPY package*.json ./
RUN npm install

# Bundle the app source inside the Docker image
COPY . .

# Build the application
RUN npm run build

# Expose port 3000 for the application
EXPOSE 3000

# Define a volume for custom spells
# This allows users to mount their custom spells directory at runtime
VOLUME ["/usr/src/app/custom-spells"]

# Start the app
CMD ["npm", "start"]