Docker push

Dockerfile

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+# Use an official Node.js image as the base
+FROM node:16-alpine AS base
+WORKDIR /app
+
+# Install dependencies
+COPY package*.json ./
+RUN npm install
+
+# Copy code and build for production
+FROM base AS production
+COPY . .
+RUN npm run build
+EXPOSE 9000
+CMD ["npm", "start"]

docker-compose.yml

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+version: "3.8"
+services:
+  app:
+    build:
+      context: .
+      dockerfile: Dockerfile
+      target: production  # Optional: use if your Dockerfile defines multiple stages
+    environment:
+      # Define your app-specific environment variables
+      DATABASE_URL: postgres://user:pass@db:5432/app
+    # Do not define "ports" here—Coolify will handle them for you
+    depends_on:
+      - db
+
+  db:
+    image: postgres:13
+    environment:
+      POSTGRES_USER: user
+      POSTGRES_PASSWORD: pass
+      POSTGRES_DB: app
+    volumes:
+      - postgres-data:/var/lib/postgresql/data
+
+volumes:
+  postgres-data: