Update Dockerfile

Dockerfile

@@ -1,8 +1,15 @@
 FROM rocker/r-base:latest
 
+# Install system dependencies needed by curl, openssl, httr, etc.
+RUN apt-get update && apt-get install -y \
+    libcurl4-openssl-dev \
+    libssl-dev \
+    libxml2-dev \
+    libssh2-1-dev
+
 WORKDIR /code
 
-# Install necessary packages
+# Install R packages
 RUN install2.r --error \
     shiny \
     dplyr \
@@ -13,8 +20,6 @@ RUN install2.r --error \
     fields \
     akima
 
-# Copy all contents into the working directory
 COPY . .
 
-# Run the Shiny app
 CMD ["R", "--quiet", "-e", "shiny::runApp(host='0.0.0.0', port=7860)"]