ok this seems to work

Dockerfile

@@ -1,13 +1,25 @@
-FROM node:20
+FROM debian:latest
 
+# Install dependencies
+RUN apt-get update && apt-get install -y \
+    curl gnupg2 ca-certificates lsb-release apt-transport-https \
+    postgresql caddy nodejs npm && \
+    rm -rf /var/lib/apt/lists/*
+
+# Set up working directory for Express app
 WORKDIR /app
-
 COPY package*.json ./
-
 RUN npm install
-
 COPY . .
 
-EXPOSE 3000
+COPY caddy/Caddyfile /etc/caddy/Caddyfile
 
-CMD ["npm", "start"]
+# Copy entrypoint script
+COPY docker-entrypoint.sh /docker-entrypoint.sh
+RUN chmod +x /docker-entrypoint.sh
+
+# Expose required ports
+EXPOSE 80 3000 5432
+
+# Use the entrypoint script to start everything
+ENTRYPOINT ["/docker-entrypoint.sh"]