Update Dockerfile

Dockerfile

@@ -1,14 +1,14 @@
-FROM rocker/r-base:latest
+# 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
 
-RUN install2.r --error \
-    shiny \
-    dplyr \
-    ggplot2 \
-    readr \
-    ggExtra
-    
+# Install additional R packages required by the app
+RUN Rscript -e "install.packages(c('shiny', 'shinydashboard', 'leaflet', 'DT', 'RColorBrewer'), dependencies = c('Depends', 'Imports', 'LinkingTo'), repos = 'https://cran.r-project.org')"
+
+# Copy the current directory (containing app.R, wealth_map.tif, and poverty_improvement_by_state.csv) into the container
 COPY . .
 
-CMD ["R", "--quiet", "-e", "shiny::runApp(host='0.0.0.0', port=7860)"]
+# Run the Shiny app, making it accessible externally on port 7860
+CMD ["R", "--quiet", "-e", "shiny::runApp(host='0.0.0.0', port=7860)"]