feat: Add Docker Configuration for Hospital Management System Deployment

src/Hospital-Infracstructure-Setup/# .env.example

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+# Hospital Management System Environment Variables
+
+# Database Configuration
+DB_PASSWORD=your_secure_database_password_here
+POSTGRES_PASSWORD=your_secure_database_password_here
+
+# Redis Configuration
+REDIS_PASSWORD=your_secure_redis_password_here
+
+# Application Security
+JWT_SECRET=your_jwt_secret_key_here
+ENCRYPTION_KEY=your_32_character_encryption_key_here
+
+# Monitoring
+GRAFANA_PASSWORD=your_grafana_admin_password_here
+
+# Backup Configuration
+BACKUP_ENCRYPTION_PASSPHRASE=your_backup_encryption_passphrase_here
+
+# SSL Certificate paths (generate before deployment)
+# openssl req -x509 -nodes -days 365 -newkey rsa:2048 \
+#   -keyout certs/server.key -out certs/server.crt
+
+---
+# Setup Instructions
+
+## 1. Initial Setup
+```bash
+# Create required directories
+sudo mkdir -p /opt/hospital/{data/{postgres,redis},backups/{postgres,redis},logs}
+sudo chown -R $USER:$USER /opt/hospital
+
+# Create certificate directory
+mkdir -p certs
+
+# Generate SSL certificates
+openssl req -x509 -nodes -days 365 -newkey rsa:2048 \
+  -keyout certs/server.key -out certs/server.crt \
+  -subj "/C=US/ST=State/L=City/O=Hospital/CN=hospital.local"
+
+# Copy environment file and configure
+cp .env.example .env
+# Edit .env with your secure passwords
+```
+
+## 2. Deploy the System
+```bash
+# Build and start all services
+docker-compose up -d
+
+# Verify all services are healthy
+docker-compose ps
+
+# Check logs
+docker-compose logs -f hospital-app
+```
+
+## 3. Access Points
+- Hospital App: https://localhost (redirects to HTTPS)
+- Grafana Monitoring: http://localhost:3001
+- Prometheus: http://localhost:9090
+- AlertManager: http://localhost:9093
+
+## 4. Security Features
+- PostgreSQL with TLS encryption and SCRAM-SHA-256 authentication
+- Row-level security and audit logging
+- Redis with password authentication
+- Automated encrypted backups
+- SSL/TLS termination at proxy level
+- Security headers and rate limiting
+
+## 5. Monitoring Features
+- Application metrics and health checks
+- Database performance monitoring
+- System resource monitoring
+- Medical-grade alerting with email notifications
+- Automated backup verification
+
+This configuration provides a production-ready hospital management system with enterprise-grade security, monitoring, and backup capabilities.

src/Hospital-Infracstructure-Setup/# monitoring/alertmanager.yml

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+global:
+  smtp_smarthost: 'localhost:587'
+  smtp_from: 'alerts@hospital.local'
+
+route:
+  group_by: ['alertname']
+  group_wait: 10s
+  group_interval: 10s
+  repeat_interval: 1h
+  receiver: 'medical-alerts'
+  routes:
+  - match:
+      severity: critical
+    receiver: 'critical-medical-alerts'
+
+receivers:
+- name: 'medical-alerts'
+  email_configs:
+  - to: 'admin@hospital.local'
+    subject: 'Hospital System Alert: {{ .GroupLabels.alertname }}'
+    body: |
+      Alert: {{ .GroupLabels.alertname }}
+      Severity: {{ .CommonLabels.severity }}
+      Instance: {{ .CommonLabels.instance }}
+      Summary: {{ .CommonAnnotations.summary }}
+      Description: {{ .CommonAnnotations.description }}
+
+- name: 'critical-medical-alerts'
+  email_configs:
+  - to: 'critical@hospital.local'
+    subject: 'CRITICAL Hospital System Alert: {{ .GroupLabels.alertname }}'
+    body: |
+      CRITICAL ALERT - IMMEDIATE ACTION REQUIRED
+
+      Alert: {{ .GroupLabels.alertname }}
+      Instance: {{ .CommonLabels.instance }}
+      Summary: {{ .CommonAnnotations.summary }}
+      Description: {{ .CommonAnnotations.description }}
+
+      This is a critical medical system alert requiring immediate attention.

src/Hospital-Infracstructure-Setup/# monitoring/prometheus.yml

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+global:
+  scrape_interval: 15s
+  evaluation_interval: 15s
+
+rule_files:
+  - "hospital_alerts.yml"
+
+alerting:
+  alertmanagers:
+    - static_configs:
+        - targets:
+          - alertmanager:9093
+
+scrape_configs:
+  - job_name: 'hospital-app'
+    static_configs:
+      - targets: ['hospital-app:3000']
+    metrics_path: '/metrics'
+    scrape_interval: 30s
+
+  - job_name: 'postgres'
+    static_configs:
+      - targets: ['postgres-exporter:9187']
+    scrape_interval: 30s
+
+  - job_name: 'redis'
+    static_configs:
+      - targets: ['redis-exporter:9121']
+    scrape_interval: 30s
+
+  - job_name: 'node'
+    static_configs:
+      - targets: ['node-exporter:9100']
+    scrape_interval: 30s
+
+  - job_name: 'prometheus'
+    static_configs:
+      - targets: ['localhost:9090']

src/Hospital-Infracstructure-Setup/# nginx/hospital.conf

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+upstream hospital_app {
+    server hospital-app:3000;
+}
+
+server {
+    listen 80;
+    server_name hospital.local;
+    return 301 https://$server_name$request_uri;
+}
+
+server {
+    listen 443 ssl http2;
+    server_name hospital.local;
+
+    ssl_certificate /etc/nginx/certs/server.crt;
+    ssl_certificate_key /etc/nginx/certs/server.key;
+
+    ssl_protocols TLSv1.2 TLSv1.3;
+    ssl_ciphers ECDHE-RSA-AES128-GCM-SHA256:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-RSA-AES128-SHA256:ECDHE-RSA-AES256-SHA384;
+    ssl_prefer_server_ciphers on;
+    ssl_session_cache shared:SSL:10m;
+    ssl_session_timeout 10m;
+
+    # Security headers
+    add_header Strict-Transport-Security "max-age=31536000; includeSubDomains" always;
+    add_header X-Content-Type-Options nosniff;
+    add_header X-Frame-Options DENY;
+    add_header X-XSS-Protection "1; mode=block";
+    add_header Content-Security-Policy "default-src 'self'; script-src 'self' 'unsafe-inline'; style-src 'self' 'unsafe-inline';";
+
+    # Rate limiting
+    limit_req_zone $binary_remote_addr zone=hospital:10m rate=10r/m;
+    limit_req zone=hospital burst=20 nodelay;
+
+    location / {
+        proxy_pass http://hospital_app;
+        proxy_http_version 1.1;
+        proxy_set_header Upgrade $http_upgrade;
+        proxy_set_header Connection 'upgrade';
+        proxy_set_header Host $host;
+        proxy_set_header X-Real-IP $remote_addr;
+        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+        proxy_set_header X-Forwarded-Proto $scheme;
+        proxy_cache_bypass $http_upgrade;
+
+        # Timeouts
+        proxy_connect_timeout 60s;
+        proxy_send_timeout 60s;
+        proxy_read_timeout 60s;
+    }
+
+    location /health {
+        access_log off;
+        proxy_pass http://hospital_app/health;
+    }
+
+    # Monitoring endpoints
+    location /metrics {
+        allow 172.20.0.0/16;
+        deny all;
+        proxy_pass http://hospital_app/metrics;
+    }
+}

src/Hospital-Infracstructure-Setup/Readme.md

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+# Multi-stage Dockerfile for NestJS Hospital Management System
+FROM node:18-alpine AS base
+WORKDIR /app
+COPY package*.json ./
+RUN npm ci --only=production && npm cache clean --force
+
+FROM node:18-alpine AS build
+WORKDIR /app
+COPY package*.json ./
+RUN npm ci
+COPY . .
+RUN npm run build
+
+FROM node:18-alpine AS production
+RUN addgroup -g 1001 -S nodejs
+RUN adduser -S nestjs -u 1001
+WORKDIR /app
+COPY --from=base /app/node_modules ./node_modules
+COPY --from=build --chown=nestjs:nodejs /app/dist ./dist
+COPY --from=build --chown=nestjs:nodejs /app/package*.json ./
+USER nestjs
+EXPOSE 3000
+HEALTHCHECK --interval=30s --timeout=3s --start-period=5s --retries=3 \
+  CMD node dist/health-check.js
+CMD ["node", "dist/main.js"]