Souverix Multi-Master Control Plane¶

Federated Management for Distributed Fleet Operations

Overview¶

The Multi-Master Control Plane enables federated management of Souverix fleets across regions, edge zones, and air-gapped environments. It supports regional autonomy, eventual consistency, and hierarchical authority.

Architecture¶

Federation Model¶

Global Control Plane
├── Region A (Master: region-a-control)
│   ├── Authority: Regional
│   ├── Autonomy: Full
│   ├── Sync: Upstream to global
│   │
│   ├── Edge Zone A1
│   │   ├── Authority: Local
│   │   ├── Autonomy: Conditional
│   │   └── Sync: Upstream to Region A
│   │
│   └── Edge Zone A2
│       ├── Authority: Local
│       ├── Autonomy: Conditional
│       └── Sync: Upstream to Region A
│
├── Region B (Master: region-b-control)
│   ├── Authority: Regional
│   ├── Autonomy: Full
│   ├── Sync: Upstream to global
│   │
│   └── Edge Zone B1
│       ├── Authority: Local
│       ├── Autonomy: Full (air-gapped)
│       └── Sync: Opportunistic
│
└── Edge Zone C (Autonomous)
    ├── Authority: Local
    ├── Autonomy: Full
    └── Sync: Opportunistic (when connected)

Regional Authority¶

Authority Levels¶

Global Authority
Master-of-record for global policies
Cross-region coordination
Federation management
Regional Authority
Master-of-record for regional policies
Local autonomy
Upstream sync to global
Local Authority
Master-of-record for edge zone
Conditional autonomy
Upstream sync to region
Autonomous Authority
Full local autonomy
No upstream dependency
Opportunistic sync

Authority Model¶

Authority:
  level: "regional"
  region: "region-a"
  master: "region-a-control"

  autonomy:
    can_operate_isolated: true
    can_modify_policies: true
    can_deploy_versions: true

  sync:
    upstream: "global-control"
    frequency: "15m"
    mode: "continuous"
    last_sync: "2026-02-27T03:45:00Z"

Eventual Consistency¶

Consistency Model¶

Strong Consistency: Within region (local master)
Eventual Consistency: Across regions (federation)
Optimistic Updates: Local changes propagate upstream
Conflict Resolution: Last-write-wins with versioning

Sync Strategy¶

SyncStrategy:
  region: "region-a"

  upstream:
    target: "global-control"
    frequency: "15m"
    mode: "continuous"
    batch_size: 100

  downstream:
    targets: ["edge-zone-a1", "edge-zone-a2"]
    frequency: "5m"
    mode: "push"
    retry_policy: "exponential-backoff"

  conflict_resolution:
    strategy: "last-write-wins"
    versioning: true
    audit_log: true

Hierarchical Management¶

Global View¶

Global Fleet View
├── Region A
│   ├── Nodes: 50
│   ├── Status: Healthy
│   ├── Drift: 2 objects
│   └── Authority: Regional
│
├── Region B
│   ├── Nodes: 40
│   ├── Status: Healthy
│   ├── Drift: 0 objects
│   └── Authority: Regional
│
└── Edge Zone C
    ├── Nodes: 15
    ├── Status: Autonomous
    ├── Sync Debt: 3.75h
    └── Authority: Autonomous

Regional View¶

Region A View
├── Edge Zone A1
│   ├── Nodes: 25
│   ├── Status: Live
│   └── Authority: Local
│
└── Edge Zone A2
    ├── Nodes: 25
    ├── Status: Live (48/50), Delayed (2/50)
    └── Authority: Local

UI Patterns¶

Hierarchical Overlays¶

Collapsible regions
Expandable zones
Authority indicators
Sync status per level

Master-of-Record Indicators¶

Visual markers for authority
Color coding by authority level
Sync relationship arrows
Autonomy status badges

Federation Boundaries¶

Trust domain visualization
Policy boundary overlays
Sync relationship graphs
Conflict resolution status

Implementation¶

Federation Manager¶

type FederationManager struct {
    globalMaster *ControlPlane
    regions      map[string]*RegionalControlPlane
    edgeZones    map[string]*EdgeZoneControlPlane
    syncCoord    *SyncCoordinator
    conflictRes  *ConflictResolver
}

Regional Control Plane¶

Local master-of-record
Regional policy authority
Upstream sync coordination
Downstream propagation

Edge Zone Control Plane¶

Local authority
Conditional autonomy
Upstream sync
Store-and-forward capability

Sync Coordinator¶

Manages sync schedules
Coordinates upstream/downstream
Handles retries
Tracks sync debt

Conflict Resolver¶

Detects conflicts
Applies resolution strategy
Maintains audit log
Notifies operators

Integration Points¶

With Digital Twin Service¶

Authority metadata
Sync status
Federation relationships

With Connectivity Manager¶

Regional connectivity
Sync coordination
Autonomous mode handling

With Lifecycle Manager¶

Regional rollout coordination
Version propagation
Policy distribution

Next Steps¶

Design federation data model
Implement sync coordinator
Build conflict resolver
Create authority hierarchy
Design UI for multi-master view