Cloud Security Architecture and Diagrams

System Architecture Overview

Architectural Principles

• Multi-cloud compatibility
• Scalable infrastructure
• Secure by design
• Modular and flexible architecture

System Architecture Diagrams

1. High-Level Cloud Security Architecture

[User/Client] --> [Identity Provider]
    |               |
    v               v
[Multi-Factor Authentication]
    |
    v
[Zero Trust Access Gateway]
    |
    +--> [Network Security Layer]
    |        |
    |        +--> [Firewall]
    |        +--> [IDS/IPS]
    |
    +--> [Cloud Resources]
    |        |
    |        +--> [Compute]
    |        +--> [Storage]
    |        +--> [Databases]
    |
    +--> [Monitoring & Logging]
             |
             +--> [Security Information and Event Management]
             +--> [Compliance Reporting]

2. Network Security Configuration

[External Network]
    |
    v
[Perimeter Firewall]
    |
    +--> [DMZ]
    |     |
    |     +--> [Public Facing Services]
    |
    +--> [Internal Network Segmentation]
          |
          +--> [Development Environment]
          +--> [Production Environment]
          +--> [Staging Environment]
          |
          +--> [Secure Management Network]

Security Controls Documentation

Identity and Access Management

• Multi-factor authentication
• Role-based access control (RBAC)
• Just-in-time (JIT) privileged access
• Automated access reviews

Network Security Controls

module "network_security_controls" {
  source = "./security-modules/network"

  firewall_rules = {
    default_deny = true
    allow_list = [
      "trusted_ip_ranges",
      "vpn_endpoints"
    ]
  }

  network_segmentation = {
    micro_segmentation = true
    isolation_levels = [
      "development",
      "staging",
      "production"
    ]
  }

  intrusion_detection = {
    enabled = true
    alert_severity_threshold = "high"
    automatic_mitigation = true
  }
}

Compliance Features

1. Audit Logging

• Comprehensive event logging
• Immutable log storage
• Centralized log management
• Automated log analysis

2. Data Encryption

• Encryption at rest
• Encryption in transit
• Key rotation policies
• Secure key management

3. Access Control Systems

• Granular permission management
• Automated access reviews
• Principle of least privilege
• Dynamic access provisioning

4. Security Monitoring

• 24/7 security operations center (SOC)
• Real-time threat detection
• Automated incident response
• Continuous compliance monitoring

Testing Strategies

1. Security Testing Approaches

• Penetration testing
• Vulnerability scanning
• Threat modeling
• Red team exercises

2. Automated Security Testing

module "security_testing" {
  source = "./testing-modules/security"

  testing_scope = {
    infrastructure = true
    applications = true
    network = true
  }

  test_types = [
    "vulnerability_scan",
    "penetration_test",
    "compliance_check"
  ]

  frequency = {
    vulnerability_scan = "daily"
    penetration_test = "quarterly"
    compliance_check = "continuous"
  }

  reporting = {
    generate_reports = true
    notification_channels = [
      "email",
      "slack",
      "security_dashboard"
    ]
  }
}

3. Continuous Security Validation

• Automated security checks in CI/CD
• Infrastructure as Code (IaC) security scanning
• Continuous compliance monitoring
• Automated remediation workflows

Infrastructure Considerations

Cloud Architecture Patterns

• Multi-cloud strategy
• Hybrid cloud integration
• Scalable microservices architecture
• Containerized infrastructure

Network Security Configurations

• Software-defined networking
• Zero trust network architecture
• Advanced firewall configurations
• Encrypted communication channels

Conclusion

A comprehensive, adaptive security architecture that provides robust protection while enabling business innovation and agility.