Update Dockerfile

Dockerfile

@@ -2,13 +2,28 @@ FROM rocker/r-base:latest
 
 WORKDIR /code
 
-RUN install2.r --error \
+# Install system dependencies
+RUN apt-get update && apt-get install -y \
+    libcurl4-openssl-dev \
+    libssl-dev \
+    libxml2-dev \
+    && rm -rf /var/lib/apt/lists/*
+
+# Install required R packages
+RUN install2.r --error --skipinstalled \
     shiny \
+    shinydashboard \
+    shinyBS \
+    DT \
     dplyr \
-    ggplot2 \
     readr \
-    ggExtra
-    
+    stringr
+
+# Copy app files
 COPY . .
 
-CMD ["R", "--quiet", "-e", "shiny::runApp(host='0.0.0.0', port=7860)"]
+# Expose port
+EXPOSE 7860
+
+# Run the app
+CMD ["R", "--quiet", "-e", "shiny::runApp(host='0.0.0.0', port=7860)"]