Configured docker file for deployment

Dockerfile

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+FROM nginx:alpine
+
+# Install necessary packages
+RUN apk add --no-cache shadow wget unzip nodejs npm
+
+# Add a new user
+RUN useradd -m -u 1000 user
+
+# Set the working directory
+WORKDIR /app
+
+# Copy relevant files from repo for configuration and deployment
+COPY index.html /usr/share/nginx/html
+COPY nginx.conf /etc/nginx/nginx.conf
+COPY package.json /app/package.json
+
+# Download and uncompress test data
+RUN wget https://github.com/andreped/wsi-visualization-demo/releases/download/sample-data/test-sample.zip \
+    && unzip test-sample.zip -d /usr/share/nginx/html \
+    && rm test-sample.zip
+
+# Install npm dependencies
+RUN cd /app && npm install
+
+# Copy the installed dependencies to the nginx html directory
+RUN cp -r node_modules/ /usr/share/nginx/html
+
+# Change ownership of nginx directories to the new user
+RUN chown -R user:user /var/cache/nginx /var/run /var/log/nginx /usr/share/nginx/html
+
+# Expose port 7860
+EXPOSE 7860
+
+# Switch to the new user
+USER user
+
+# Start nginx
+CMD ["nginx", "-g", "daemon off;"]