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The process for using a distroless image in Docker to host Strapi without employing the npm command can be summarized as follows:

1. Create a Dockerfile for your Strapi application and choose a suitable distroless base image.
2. Install required dependencies and copy your Strapi application code into the image.
3. Set the appropriate environment variables, such as the port number and database configuration.
4. Build the Docker image using the Dockerfile.
5. Run the Docker container using the built image, with the appropriate options and flags to expose the port and mount any required volumes.

Here is an example Dockerfile for hosting Strapi using a distroless image:

# Use a distroless base image
FROM gcr.io/distroless/nodejs

# Set the working directory and copy in the Strapi application code
WORKDIR /usr/src/app
COPY . .

# Install required dependencies
RUN npm install

# Set the environment variables
ENV NODE_ENV=production
ENV HOST=0.0.0.0
ENV PORT=1337
ENV DATABASE_CLIENT=mysql
ENV DATABASE_NAME=strapi
ENV DATABASE_HOST=strapi-db
ENV DATABASE_PORT=3306
ENV DATABASE_USERNAME=strapi
ENV DATABASE_PASSWORD=strapi

# Expose the Strapi port
EXPOSE 1337

# Start the Strapi server
CMD ["node", "server.js"]

To build and run the Docker container, use the following commands:

# Build the Docker image
docker build -t my-strapi-app .

# Run the Docker container
docker run -d -p 1337:1337 --name my-strapi-container my-strapi-app

This will start the Strapi server and make it available on port 1337 of your local machine.