# Deploy via Gravity Network

The Gravity Network enables deployment to public cloud, private VPC, on-premises, multi-cloud, or edge — one platform, one SDK, one consistent developer experience across all environments.

## Overview

The Gravity Network is Agentuity's distributed deployment infrastructure that allows you to:
- **Deploy Anywhere**: Cloud, VPC, on-prem, edge, or multi-cloud
- **Unified SDK**: Same code runs everywhere
- **Consistent Experience**: Same CLI, same APIs, same services
- **Global Distribution**: Run agents close to users and data
- **Hybrid Architecture**: Seamlessly mix deployment targets

## Key Concepts

### What is the Gravity Network?

The Gravity Network is Agentuity's answer to the question: "How do we run the same agent code across radically different infrastructure without changing a single line?"

It provides:
- **Location Abstraction**: Deploy to any infrastructure
- **Service Portability**: Built-in services work everywhere
- **Agent Mobility**: Move agents between environments
- **Cross-Environment Communication**: Agents can call each other across clouds

### Architecture

```
┌──────────────────────────────────────────────────────┐
│              Gravity Network Control Plane            │
│  (Agent Registry, Routing, Discovery, Monitoring)    │
└───────────────┬──────────────────────────────────────┘
                │
        ┌───────┴────────┬────────────┬──────────────┐
        │                │            │              │
   ┌────▼────┐    ┌─────▼─────┐  ┌──▼───┐    ┌─────▼──────┐
   │ AWS     │    │ Azure     │  │ GCP  │    │ On-Prem    │
   │ Region  │    │ Region    │  │ Zone │    │ Data Center│
   └────┬────┘    └─────┬─────┘  └──┬───┘    └─────┬──────┘
        │                │           │              │
    [Agents]        [Agents]     [Agents]      [Agents]
```

## Deployment Targets

### 1. Multi-Cloud Deployment

Deploy the same agent across multiple cloud providers:

```yaml
# agentuity.yaml
name: global-agent
runtime: nodejs

deployment:
  type: multi-cloud
  targets:
    - cloud: aws
      regions:
        - us-east-1
        - eu-west-1
    - cloud: azure
      regions:
        - eastus
        - westeurope
    - cloud: gcp
      regions:
        - us-central1
        - europe-west1

routing:
  strategy: geo-latency  # Route to nearest region
```

```bash
# Deploy to all targets
agentuity deploy --multi-cloud

# Verify deployment
agentuity status --all-targets
```

### 2. Edge Deployment

Run agents at the edge, close to users:

```yaml
# agentuity.yaml
deployment:
  type: edge
  edge-locations:
    - americas: 12  # Deploy to 12 edge locations in Americas
    - europe: 8
    - asia: 15
    - oceania: 3

  edge-config:
    cold-start-optimization: true
    local-caching: true
    data-residency: enforce
```

```bash
# Deploy to edge network
agentuity deploy --edge

# Global edge deployment with < 50ms latency to 95% of users
```

### 3. Hybrid Cloud

Mix cloud and on-premises:

```yaml
# agentuity.yaml
deployment:
  type: hybrid
  
  # Public workloads in cloud
  cloud:
    provider: aws
    regions: [us-east-1]
    agents:
      - frontend-agent
      - api-gateway-agent
  
  # Sensitive workloads on-prem
  on-premises:
    clusters:
      - datacenter-1
    agents:
      - data-processing-agent
      - compliance-agent
  
  # Secure tunnel for communication
  interconnect:
    type: wireguard
    endpoints:
      - cloud: vpn.aws.example.com
      - on-prem: vpn.datacenter.example.com
```

### 4. Multi-Region Single Cloud

Maximize availability within one cloud:

```yaml
# agentuity.yaml
deployment:
  type: multi-region
  cloud: aws
  
  regions:
    primary: us-east-1
    secondary:
      - us-west-2
      - eu-west-1
      - ap-southeast-1
  
  failover:
    automatic: true
    health-check-interval: 30s
    failover-threshold: 3
  
  data-replication:
    strategy: active-active
    conflict-resolution: last-write-wins
```

## Configuration

### Basic Multi-Cloud Setup

```bash
# Configure multiple cloud providers
agentuity config set-cloud aws \
  --access-key-id $AWS_ACCESS_KEY \
  --secret-access-key $AWS_SECRET_KEY \
  --region us-east-1

agentuity config set-cloud azure \
  --subscription-id $AZURE_SUBSCRIPTION \
  --tenant-id $AZURE_TENANT \
  --region eastus

agentuity config set-cloud gcp \
  --project-id $GCP_PROJECT \
  --key-file $GCP_KEY_FILE \
  --region us-central1

# Deploy across all configured clouds
agentuity deploy --gravity
```

### Gravity Network Features

```yaml
# agentuity.yaml
gravity:
  # Enable Gravity Network features
  enabled: true
  
  # Agent discovery across environments
  discovery:
    enabled: true
    protocol: mDNS  # or consul, etcd
  
  # Cross-environment communication
  mesh:
    enabled: true
    encryption: wireguard
    load-balancing: round-robin
  
  # Data synchronization
  sync:
    enabled: true
    services:
      - kv-store
      - vector-db
    strategy: eventual-consistency
  
  # Global routing
  routing:
    strategy: geo-latency
    fallback: nearest-available
    health-check: true
```

## Deployment Strategies

### Geographic Routing

Route requests based on user location:

```yaml
routing:
  strategy: geographic
  rules:
    - region: americas
      target: aws:us-east-1
    - region: europe
      target: azure:westeurope
    - region: asia
      target: gcp:asia-southeast1
    - default: aws:us-east-1
```

### Weighted Distribution

Gradual rollout across environments:

```yaml
routing:
  strategy: weighted
  weights:
    aws:us-east-1: 70
    azure:eastus: 20
    gcp:us-central1: 10
```

### Canary with Gravity

Test new versions in one environment:

```yaml
deployment:
  canary:
    enabled: true
    initial-environment: aws:us-west-2
    traffic: 5%
    duration: 1h
    success-criteria:
      error-rate: < 0.01
      latency-p99: < 500ms
    on-success: promote-all-environments
    on-failure: rollback
```

## Cross-Environment Features

### Agent-to-Agent Communication

Agents can call each other across any environment:

```typescript
import { createAgent } from '@agentuity/runtime';

const agentA = createAgent('agent-a', {
  handler: async (ctx) => {
    // Call agent-b regardless of where it's deployed
    const result = await ctx.callAgent('agent-b', {
      data: 'Hello from agent-a'
    });
    return result;
  }
});

// Gravity Network handles:
// - Service discovery
// - Load balancing
// - Encryption
// - Retries and timeouts
```

### Global State Synchronization

```typescript
import { kv } from '@agentuity/runtime';

// Writes are replicated across all deployments
await kv.set('user:123', { name: 'Alice' }, {
  replication: 'all-regions',
  consistency: 'eventual'
});

// Reads are local-first for performance
const user = await kv.get('user:123');
```

### Distributed Tracing

```typescript
import { trace } from '@agentuity/runtime';

// Traces follow requests across environments
const span = trace.startSpan('process-request');
span.setAttribute('environment', process.env.DEPLOYMENT_ENV);

// Automatically propagates across agent calls
await ctx.callAgent('downstream-agent', data);

span.end();

// View traces in Agentuity Console:
// Request flows through AWS -> Azure -> On-Prem
```

## Data Residency & Compliance

### Regional Data Isolation

```yaml
compliance:
  data-residency:
    enabled: true
    rules:
      # EU data stays in EU
      - data-class: eu-customer-data
        allowed-regions:
          - azure:westeurope
          - aws:eu-west-1
        deny-all-others: true
      
      # US data can use any US region
      - data-class: us-data
        allowed-regions:
          - aws:us-*
          - azure:*us*
          - gcp:us-*
```

### Cross-Border Data Transfer

```yaml
compliance:
  cross-border-transfer:
    enabled: false  # Block by default
    allowed-pairs:
      # Only specific paths allowed
      - source: aws:us-east-1
        destination: aws:eu-west-1
        justification: "GDPR compliant transfer"
        approval: "GDPR-2024-001"
```

## Edge Computing Use Cases

### IoT Agent Deployment

```yaml
# Deploy agents to edge locations near IoT devices
deployment:
  type: edge
  edge-tier: industrial
  
  # Deploy to specific edge locations
  locations:
    - factory-floor-1  # On-premises edge
    - warehouse-2      # On-premises edge
    - aws-wavelength:us-east-1  # Telecom edge
  
  # Minimal latency requirements
  latency:
    device-to-agent: < 10ms
    agent-to-cloud: < 100ms
```

### Real-Time Processing

```yaml
# Edge agents with cloud backup
deployment:
  type: edge-cloud
  
  edge:
    # Process at edge for speed
    agents:
      - video-analytics
      - anomaly-detection
    storage: local-ssd
    
  cloud:
    # Long-term storage and training in cloud
    agents:
      - model-training
      - data-warehouse
    storage: s3
  
  sync:
    # Sync processed data to cloud
    edge-to-cloud: batch
    interval: 5m
```

## Monitoring & Operations

### Global Dashboard

```bash
# View all deployments
agentuity status --gravity

# Output:
# ┌─────────────┬────────────────┬──────────┬──────────┐
# │ Environment │ Agents Running │ Requests │ Latency  │
# ├─────────────┼────────────────┼──────────┼──────────┤
# │ AWS US-East │ 5              │ 1.2M/day │ 45ms p50 │
# │ Azure EU    │ 3              │ 800K/day │ 38ms p50 │
# │ GCP Asia    │ 4              │ 950K/day │ 52ms p50 │
# │ On-Prem DC  │ 2              │ 150K/day │ 12ms p50 │
# └─────────────┴────────────────┴──────────┴──────────┘
```

### Global Metrics

```bash
# Aggregate metrics across all environments
agentuity metrics aggregate \
  --metric request-rate \
  --metric error-rate \
  --metric latency-p99 \
  --all-environments

# Compare environments
agentuity metrics compare \
  --environments aws:us-east-1,azure:westeurope \
  --period 24h
```

### Health Checks

```yaml
health-checks:
  global:
    enabled: true
    interval: 30s
    endpoints:
      - /health
      - /ready
    
    failure-action: failover
    failover-target: nearest-healthy
    
    alerts:
      - trigger: environment-down
        action: page-oncall
      - trigger: high-latency
        threshold: 500ms
        action: auto-scale
```

## Disaster Recovery

### Automatic Failover

```yaml
disaster-recovery:
  automatic-failover:
    enabled: true
    detection-time: 60s  # Detect failure in 60s
    failover-time: 30s   # Failover in 30s
    
  backup-environments:
    primary: aws:us-east-1
    secondary: azure:eastus
    tertiary: gcp:us-central1
    
  data-replication:
    mode: synchronous  # Zero data loss
    lag-threshold: 1s
```

### Multi-Cloud Backup

```bash
# Backup to multiple clouds simultaneously
agentuity backup create \
  --targets aws:s3,azure:blob,gcp:storage \
  --encryption enabled \
  --retention 30d
```

## Cost Optimization

### Cost-Aware Routing

```yaml
routing:
  strategy: cost-optimized
  preferences:
    - minimize-cost
    - maintain-latency: < 200ms
    
  cost-rules:
    # Use cheaper regions when possible
    - condition: non-peak-hours
      target: spot-instances
    - condition: high-load
      target: reserved-instances
```

### Environment-Specific Scaling

```yaml
scaling:
  per-environment:
    aws:us-east-1:
      min: 3
      max: 50
      strategy: aggressive
    
    azure:westeurope:
      min: 1
      max: 20
      strategy: conservative
    
    on-prem:
      fixed: 5  # Fixed capacity on-prem
```

## Best Practices

1. **Start Regional**: Begin with single-region, expand as needed
2. **Test Failover**: Regularly test cross-environment failover
3. **Monitor Costs**: Track per-environment costs
4. **Data Residency**: Plan data residency requirements early
5. **Network Security**: Use encrypted tunnels for hybrid
6. **Health Checks**: Implement comprehensive health monitoring
7. **Incremental Rollout**: Use canary deployments across environments

## Troubleshooting

### Cross-Environment Communication Issues

```bash
# Test connectivity between environments
agentuity network test \
  --source aws:us-east-1 \
  --target azure:westeurope

# Check Gravity mesh status
agentuity gravity status

# View routing table
agentuity gravity routes
```

### Latency Issues

```bash
# Measure latency between all environments
agentuity network latency-matrix

# Optimize routing
agentuity routing optimize --target latency
```

### Data Sync Issues

```bash
# Check synchronization status
agentuity sync status

# Force sync
agentuity sync trigger --service kv-store

# View sync conflicts
agentuity sync conflicts --resolve manual
```

## References

- [Gravity Network Documentation](https://agentuity.dev/gravity)
- [Multi-Cloud Best Practices](https://agentuity.dev/multi-cloud)
- [Edge Computing Guide](https://agentuity.dev/edge)
- [Data Residency](https://agentuity.dev/compliance/data-residency)
