ok this seems to work

.env.dist

@@ -1,3 +1,4 @@
+POSTGRES_HOST=localhost
 POSTGRES_USER=app_user
 POSTGRES_PASSWORD=app_password
 POSTGRES_DB=app_db

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"]

caddy/Caddyfile

@@ -1,3 +1,3 @@
 :80 {
-    reverse_proxy express:3000
+    reverse_proxy localhost:3000
 }

docker-compose.yml

@@ -1,45 +1,14 @@
 version: '3'
 
 services:
-  express:
+  app:
     build: .
-    user: "${UID:-1000}:${GID:-1000}"
-    ports:
-      - "3000:3000"
-    volumes:
-      - ./container-data:/app/data
-    networks:
-      - app_network
-    depends_on:
-      postgres:
-        condition: service_healthy
-
-  caddy:
-    image: caddy:2
     ports:
       - "80:80"
-    volumes:
-      - ./caddy:/etc/caddy
-    networks:
-      - app_network
-    depends_on:
-      - express
-
-  postgres:
-    image: postgres
-    environment:
-      POSTGRES_USER: ${POSTGRES_USER}
-      POSTGRES_PASSWORD: ${POSTGRES_PASSWORD}
-      POSTGRES_DB: ${POSTGRES_DB}
-    ports:
+      - "3000:3000"
       - "5432:5432"
-    networks:
-      - app_network
-    healthcheck:
-      test: [ "CMD", "pg_isready", "-U", "${POSTGRES_USER}", "-d", "${POSTGRES_DB}" ]
-      interval: 1s
-      retries: 10
-
-networks:
-  app_network:
-    driver: bridge
+    environment:
+      - POSTGRES_HOST=${POSTGRES_HOST}
+      - POSTGRES_USER=${POSTGRES_USER}
+      - POSTGRES_PASSWORD=${POSTGRES_PASSWORD}
+      - POSTGRES_DB=${POSTGRES_DB}

docker-entrypoint.sh

@@ -0,0 +1,26 @@
+#!/bin/bash
+
+# Start PostgreSQL service
+service postgresql start
+
+# Wait for PostgreSQL to be ready
+until su - postgres -c "pg_isready"; do
+  echo "Waiting for PostgreSQL to be ready..."
+  sleep 1
+done
+
+# Create the database and user if they don't exist
+su - postgres -c "psql -tc \"SELECT 1 FROM pg_roles WHERE rolname = '$POSTGRES_USER';\"" | grep -q 1 || \
+su - postgres -c "psql -c \"CREATE USER $POSTGRES_USER WITH ENCRYPTED PASSWORD '$POSTGRES_PASSWORD';\""
+
+su - postgres -c "psql -tc \"SELECT 1 FROM pg_database WHERE datname = '$POSTGRES_DB';\"" | grep -q 1 || \
+su - postgres -c "psql -c \"CREATE DATABASE $POSTGRES_DB OWNER $POSTGRES_USER;\""
+
+# Start Caddy
+caddy run --config /etc/caddy/Caddyfile &
+
+# Start Express app
+npm start
+
+# Keep container running
+wait

src/database.js

@@ -5,7 +5,7 @@ dotenv.config();
 
 const sequelize = new Sequelize({
   dialect: 'postgres',
-  host: 'postgres',
+  host: process.env.POSTGRES_HOST,
   port: 5432,
   database: process.env.POSTGRES_DB,
   username: process.env.POSTGRES_USER,