Update Dockerfile

Dockerfile

@@ -1,9 +1,10 @@
 # Use rocker/geospatial as the base image to include necessary geospatial libraries
 FROM rocker/geospatial:latest
 
+# Set the working directory inside the container
 WORKDIR /code
 
-# Install R packages, specifying the CRAN repository for reliability
+# Install required R packages, ensuring dependencies are included
 RUN install2.r --error --deps TRUE --repos "https://cran.r-project.org" \
     shiny \
     shinydashboard \
@@ -19,8 +20,11 @@ RUN install2.r --error --deps TRUE --repos "https://cran.r-project.org" \
     ggExtra \
     viridis
 
-# Copy the current directory into the container
+# Copy all files from the current directory to the container's working directory
 COPY . .
 
-# Run the Shiny app
+# Expose port 7860 to allow external access to the Shiny app
+EXPOSE 7860
+
+# Command to run the Shiny app when the container starts
 CMD ["R", "--quiet", "-e", "shiny::runApp(host='0.0.0.0', port=7860)"]