No longer generating refresh token while building the container. Also switching to nonroot user before copying files and installing dependencies.

Backend/Dockerfile

@@ -14,18 +14,22 @@ RUN apt update && apt upgrade -y && \
 RUN useradd -s /bin/bash nonroot
 
 # Create working directory
-RUN mkdir -p /app
-RUN chown -R nonroot:nonroot /app
+RUN mkdir -p /app /home/nonroot
+RUN chown -R nonroot:nonroot /app /home/nonroot
 WORKDIR /app
-COPY . .
-
-# Generate a random hex token and write it to .env
-RUN echo "REFRESH_TOKEN_SECRET = $(openssl rand -hex 32)" >> /app/.env
-RUN npm install
 
 # Switch user
 USER nonroot
 
+# Copy contents
+COPY . .
+
+# Generate a random hex token and write it to .env
+#RUN echo "REFRESH_TOKEN_SECRET = $(openssl rand -hex 32)" >> /app/.env
+
+# Install dependencies
+RUN npm install
+
 # Expose backend port
 EXPOSE 8000