Infrastructure Diagrams

This section contains comprehensive diagrams, architectures, and visual documentation for enterprise infrastructure components and designs.

Network Architecture Diagrams

Enterprise Network Topology

graph TB
    Internet([Internet])
    Firewall[Enterprise Firewall]
    CoreSwitch[Core Switch]
    DMZ[DMZ Network]
    Internal[Internal Network]
    Management[Management Network]
    
    Internet --> Firewall
    Firewall --> CoreSwitch
    CoreSwitch --> DMZ
    CoreSwitch --> Internal
    CoreSwitch --> Management
    
    DMZ --> WebServers[Web Servers]
    DMZ --> LoadBalancer[Load Balancer]
    Internal --> AppServers[Application Servers]
    Internal --> Database[Database Servers]
    Management --> Monitoring[Monitoring Systems]
    Management --> Backup[Backup Systems]

VLAN Segmentation Design

graph LR
    subgraph "Core Infrastructure"
        CoreSwitch[Core Switch]
    end
    
    subgraph "VLAN 100 - Management"
        MGMT1[Domain Controllers]
        MGMT2[Monitoring Systems]
        MGMT3[Backup Infrastructure]
    end
    
    subgraph "VLAN 200 - Servers"
        SRV1[Application Servers]
        SRV2[Database Servers]
        SRV3[File Servers]
    end
    
    subgraph "VLAN 300 - Workstations"
        WS1[User Workstations]
        WS2[Department Resources]
    end
    
    subgraph "VLAN 400 - Guest"
        GUEST1[Guest Access]
        GUEST2[Contractor Systems]
    end
    
    subgraph "VLAN 500 - IoT"
        IOT1[Security Cameras]
        IOT2[Environmental Sensors]
        IOT3[Access Control]
    end
    
    CoreSwitch --> MGMT1
    CoreSwitch --> SRV1
    CoreSwitch --> WS1
    CoreSwitch --> GUEST1
    CoreSwitch --> IOT1

Cloud Architecture Diagrams

Hybrid Cloud Infrastructure

graph TB
    subgraph "On-Premises"
        OnPremAD[Active Directory]
        OnPremExchange[Exchange Server]
        OnPremFile[File Servers]
        OnPremDB[Database Servers]
    end
    
    subgraph "Azure Cloud"
        AzureAD[Azure AD Connect]
        AzureVMs[Virtual Machines]
        AzureSQL[Azure SQL Database]
        AzureStorage[Azure Storage]
        AzureBackup[Azure Backup]
    end
    
    subgraph "Microsoft 365"
        M365Exchange[Exchange Online]
        M365Teams[Microsoft Teams]
        M365SharePoint[SharePoint Online]
        M365OneDrive[OneDrive for Business]
    end
    
    OnPremAD <--> AzureAD
    OnPremExchange <--> M365Exchange
    OnPremFile --> AzureStorage
    OnPremDB --> AzureSQL
    OnPremDB --> AzureBackup
    
    AzureAD --> M365Teams
    AzureAD --> M365SharePoint
    AzureAD --> M365OneDrive

Container Infrastructure

graph TB
    subgraph "Container Platform"
        Registry[Container Registry]
        Orchestrator[Kubernetes/Docker Swarm]
        LoadBalancer[Load Balancer]
    end
    
    subgraph "Application Tier"
        WebContainer[Web Containers]
        AppContainer[Application Containers]
        APIContainer[API Containers]
    end
    
    subgraph "Data Tier"
        DatabaseContainer[Database Containers]
        CacheContainer[Cache Containers]
        QueueContainer[Message Queue]
    end
    
    subgraph "Infrastructure Services"
        Monitoring[Monitoring Stack]
        Logging[Centralized Logging]
        Security[Security Scanning]
    end
    
    Registry --> Orchestrator
    Orchestrator --> LoadBalancer
    LoadBalancer --> WebContainer
    WebContainer --> AppContainer
    AppContainer --> APIContainer
    APIContainer --> DatabaseContainer
    APIContainer --> CacheContainer
    APIContainer --> QueueContainer
    
    Orchestrator --> Monitoring
    Orchestrator --> Logging
    Orchestrator --> Security

Security Architecture Diagrams

Zero Trust Network Model

graph TB
    subgraph "External Threats"
        Threats[External Threats]
    end
    
    subgraph "Perimeter Security"
        Firewall[Next-Gen Firewall]
        WAF[Web Application Firewall]
        DDoS[DDoS Protection]
    end
    
    subgraph "Identity & Access"
        IAM[Identity Management]
        MFA[Multi-Factor Auth]
        PAM[Privileged Access Mgmt]
    end
    
    subgraph "Network Security"
        Segmentation[Network Segmentation]
        Inspection[Deep Packet Inspection]
        VPN[Zero Trust VPN]
    end
    
    subgraph "Endpoint Security"
        EDR[Endpoint Detection]
        DLP[Data Loss Prevention]
        Encryption[Endpoint Encryption]
    end
    
    subgraph "Data Security"
        Classification[Data Classification]
        Encryption2[Data Encryption]
        Backup[Secure Backup]
    end
    
    Threats --> Firewall
    Firewall --> WAF
    WAF --> DDoS
    DDoS --> IAM
    IAM --> MFA
    MFA --> PAM
    PAM --> Segmentation
    Segmentation --> Inspection
    Inspection --> VPN
    VPN --> EDR
    EDR --> DLP
    DLP --> Encryption
    Encryption --> Classification
    Classification --> Encryption2
    Encryption2 --> Backup

Identity Management Flow

sequenceDiagram
    participant User
    participant AuthProvider as Identity Provider
    participant MFA as MFA Service
    participant App as Application
    participant Resource as Protected Resource
    
    User->>AuthProvider: Login Request
    AuthProvider->>User: Request Credentials
    User->>AuthProvider: Username/Password
    AuthProvider->>MFA: Trigger MFA
    MFA->>User: MFA Challenge
    User->>MFA: MFA Response
    MFA->>AuthProvider: MFA Success
    AuthProvider->>User: Authentication Token
    User->>App: Access Request + Token
    App->>AuthProvider: Validate Token
    AuthProvider->>App: Token Valid
    App->>Resource: Authorized Request
    Resource->>App: Protected Data
    App->>User: Application Response

Monitoring & Observability

Monitoring Architecture

graph TB
    subgraph "Data Sources"
        Servers[Servers & VMs]
        Containers[Container Platforms]
        Applications[Applications]
        Networks[Network Devices]
        Security[Security Tools]
    end
    
    subgraph "Collection Layer"
        Agents[Monitoring Agents]
        APIs[API Collectors]
        Logs[Log Collectors]
        Metrics[Metric Collectors]
    end
    
    subgraph "Processing Layer"
        Parser[Log Parsing]
        Aggregation[Data Aggregation]
        Correlation[Event Correlation]
        Enrichment[Data Enrichment]
    end
    
    subgraph "Storage Layer"
        TSDB[Time Series DB]
        LogStore[Log Storage]
        MetricStore[Metric Storage]
    end
    
    subgraph "Visualization & Alerting"
        Dashboards[Monitoring Dashboards]
        Alerts[Alert Manager]
        Reports[Automated Reports]
        SIEM[SIEM Integration]
    end
    
    Servers --> Agents
    Containers --> Agents
    Applications --> APIs
    Networks --> APIs
    Security --> Logs
    
    Agents --> Parser
    APIs --> Aggregation
    Logs --> Parser
    Metrics --> Correlation
    
    Parser --> Enrichment
    Aggregation --> Enrichment
    Correlation --> Enrichment
    
    Enrichment --> TSDB
    Enrichment --> LogStore
    Enrichment --> MetricStore
    
    TSDB --> Dashboards
    LogStore --> Alerts
    MetricStore --> Reports
    LogStore --> SIEM

Disaster Recovery Architecture

Multi-Site DR Design

graph TB
    subgraph "Primary Site"
        PrimaryDC[Primary Data Center]
        PrimaryServers[Production Servers]
        PrimaryStorage[Primary Storage]
        PrimaryNetwork[Primary Network]
    end
    
    subgraph "Secondary Site"
        SecondaryDC[Secondary Data Center]
        SecondaryServers[Standby Servers]
        SecondaryStorage[Replicated Storage]
        SecondaryNetwork[Secondary Network]
    end
    
    subgraph "Cloud Backup"
        CloudStorage[Cloud Storage]
        CloudCompute[Cloud Compute]
        CloudNetwork[Cloud Network]
    end
    
    subgraph "Replication Services"
        DataReplication[Data Replication]
        ConfigReplication[Config Replication]
        NetworkReplication[Network Replication]
    end
    
    PrimaryDC <--> DataReplication
    DataReplication <--> SecondaryDC
    PrimaryStorage --> CloudStorage
    SecondaryStorage --> CloudStorage
    
    PrimaryServers --> ConfigReplication
    ConfigReplication --> SecondaryServers
    
    PrimaryNetwork --> NetworkReplication
    NetworkReplication --> SecondaryNetwork

Infrastructure Automation

CI/CD Pipeline Architecture

graph LR
    subgraph "Development"
        DevCode[Developer Code]
        SCM[Source Control]
        FeatureBranch[Feature Branch]
    end
    
    subgraph "CI Pipeline"
        Build[Build Process]
        Test[Automated Testing]
        Security[Security Scanning]
        Package[Package Creation]
    end
    
    subgraph "CD Pipeline"
        Deploy[Automated Deployment]
        Staging[Staging Environment]
        Production[Production Environment]
        Rollback[Rollback Capability]
    end
    
    subgraph "Infrastructure as Code"
        Terraform[Terraform]
        Ansible[Ansible]
        Kubernetes[Kubernetes]
        Monitoring[Infrastructure Monitoring]
    end
    
    DevCode --> SCM
    SCM --> FeatureBranch
    FeatureBranch --> Build
    Build --> Test
    Test --> Security
    Security --> Package
    Package --> Deploy
    Deploy --> Staging
    Staging --> Production
    Production --> Rollback
    
    Deploy --> Terraform
    Deploy --> Ansible
    Deploy --> Kubernetes
    Terraform --> Monitoring
    Ansible --> Monitoring
    Kubernetes --> Monitoring

Available Detailed Diagrams

Basic Cloud Infrastructure - Illustrates a basic three-tier web application in the cloud
Network Security Architecture - Comprehensive network security design
Hybrid Cloud Integration - On-premises to cloud integration patterns
Container Platform Design - Enterprise container orchestration
Monitoring and Observability - Complete monitoring solution design
Disaster Recovery Planning - Multi-site DR architecture
Zero Trust Implementation - Zero trust security framework
DevOps Pipeline Architecture - CI/CD and automation workflows

Diagram Standards

Mermaid Diagrams

All diagrams in this section use Mermaid.js syntax for consistency and easy maintenance. Mermaid provides:

Version control friendly text-based diagrams
Automatic layout and rendering
Consistent styling across all documentation
Easy updates and modifications

Naming Conventions

Use descriptive names for all diagram elements
Follow consistent color coding (blue for infrastructure, green for security, orange for monitoring)
Include legends when diagrams become complex
Maintain consistent arrow styles and directions

Documentation Requirements

Each diagram should include:

Clear title and purpose
Component descriptions
Data flow explanations
Security considerations
Maintenance procedures

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