Update Dockerfile

Dockerfile

@@ -1,5 +1,5 @@
-# Use a suitable base Docker image with necessary dependencies
-FROM circulartextapp/spaceread
+# Use the base Docker image with necessary dependencies
+FROM circulartextapp/spaceread as base
 
 # Set the working directory to /app
 WORKDIR /app
@@ -19,18 +19,27 @@ RUN if id "$USER_ID" >/dev/null 2>&1; then \
     fi
 
 # Set appropriate permissions for the application directory
-RUN chown -R user:user /app && chmod -R 777 /app
+RUN chown -R user:user /app && chmod -R 755 /app
 
-# Install gosu (adjust the package manager based on your base image)
-RUN apk add --no-cache gosu
+# Switch to the user for improved security
+USER user
+
+# Intermediate image with additional packages
+FROM debian:bullseye-slim as packages
+
+# Install gosu using apt-get
+RUN apt-get update && apt-get install -y gosu && rm -rf /var/lib/apt/lists/*
+
+# Final image
+FROM base
+
+# Copy gosu from the packages image
+COPY --from=packages /usr/sbin/gosu /usr/sbin/gosu
 
 # Set the entrypoint script as executable
 COPY entrypoint.sh /usr/local/bin/entrypoint.sh
 RUN chmod +x /usr/local/bin/entrypoint.sh
 
-# Switch to the user for improved security
-USER user
-
 # Define the entrypoint script to handle user creation and application startup
 ENTRYPOINT ["/usr/local/bin/entrypoint.sh"]