Add docker compose setup

Add docker compose setup to facilitate the deployment in railway.

Author: jsdanielh

.dockerignore

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+node_modules
+.git
+.github
+.vscode
+.kiro
+*.md
+.env
+.env.local
+.env.*.local
+.nuxt
+.output
+dist
+coverage
+.nyc_output
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+pnpm-debug.log*
+lerna-debug.log*

Dockerfile

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+# Use Node.js 20 Alpine as base image
+FROM node:20-alpine AS base
+
+# Install pnpm
+RUN npm install -g pnpm@10.17.1
+
+# Set working directory
+WORKDIR /app
+
+# Copy package files
+COPY package.json pnpm-lock.yaml pnpm-workspace.yaml ./
+
+# Install dependencies
+RUN pnpm install --frozen-lockfile
+
+# Copy source code
+COPY . .
+
+# Build stage
+FROM base AS build
+
+# Build the application
+RUN pnpm build
+
+# Production stage
+FROM node:20-alpine AS production
+
+# Install pnpm
+RUN npm install -g pnpm@10.17.1
+
+WORKDIR /app
+
+# Copy package files
+COPY package.json pnpm-lock.yaml pnpm-workspace.yaml ./
+
+# Install only production dependencies
+RUN pnpm install --frozen-lockfile --prod
+
+# Copy built application from build stage
+COPY --from=build /app/.output ./.output
+COPY --from=build /app/.nuxt ./.nuxt
+
+# Expose port
+EXPOSE 3000
+
+# Set environment
+ENV NODE_ENV=production
+ENV NITRO_HOST=0.0.0.0
+ENV NITRO_PORT=3000
+
+# Start the application
+CMD ["node", ".output/server/index.mjs"]

docker-compose.yml

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+include:
+  - database/docker-compose.yml
+
+services:
+  # Nuxt.js Application
+  app:
+    container_name: pay-app
+    build:
+      context: .
+      dockerfile: Dockerfile
+    restart: unless-stopped
+    ports:
+      - '${APP_PORT:-3000}:3000'
+    depends_on:
+      db:
+        condition: service_healthy
+      kong:
+        condition: service_started
+    environment:
+      # Database connection
+      POSTGRES_HOST: db
+      POSTGRES_PORT: 5432
+      POSTGRES_USER: postgres
+      POSTGRES_PASSWORD: ${POSTGRES_PASSWORD}
+      POSTGRES_DB: ${POSTGRES_DB:-postgres}
+
+      # API configuration
+      SUPABASE_PUBLIC_URL: http://kong:8000
+      ANON_KEY: ${ANON_KEY}
+      SERVICE_ROLE_KEY: ${SERVICE_ROLE_KEY}
+
+      # Google API
+      NUXT_GOOGLE_API_KEY: ${NUXT_GOOGLE_API_KEY}
+
+      # Node environment
+      NODE_ENV: production
+    env_file:
+      - .env
+    volumes:
+      # Mount source code for development (remove in production)
+      - .:/app
+      - /app/node_modules
+    networks:
+      - default
+
+networks:
+  default:
+    driver: bri