Hybrid Cloud Networking

Hybrid Cloud Networking

Configure secure, high-performance connectivity between on-premises and cloud environments using VPN, Direct Connect, and ExpressRoute.

Do not use this skill when

• The task is unrelated to hybrid cloud networking
• You need a different domain or tool outside this scope

Instructions

• Clarify goals, constraints, and required inputs.
• Apply relevant best practices and validate outcomes.
• Provide actionable steps and verification.
• If detailed examples are required, open resources/implementation-playbook.md.

Purpose

Establish secure, reliable network connectivity between on-premises data centers and cloud providers (AWS, Azure, GCP).

Use this skill when

• Connect on-premises to cloud
• Extend datacenter to cloud
• Implement hybrid active-active setups
• Meet compliance requirements
• Migrate to cloud gradually

Connection Options

AWS Connectivity

1. Site-to-Site VPN

• IPSec VPN over internet
• Up to 1.25 Gbps per tunnel
• Cost-effective for moderate bandwidth
• Higher latency, internet-dependent

resource "aws_vpn_gateway" "main" {
  vpc_id = aws_vpc.main.id
  tags = {
    Name = "main-vpn-gateway"
  }
}

resource "aws_customer_gateway" "main" {
  bgp_asn    = 65000
  ip_address = "203.0.113.1"
  type       = "ipsec.1"
}

resource "aws_vpn_connection" "main" {
  vpn_gateway_id      = aws_vpn_gateway.main.id
  customer_gateway_id = aws_customer_gateway.main.id
  type                = "ipsec.1"
  static_routes_only  = false
}

2. AWS Direct Connect

• Dedicated network connection
• 1 Gbps to 100 Gbps
• Lower latency, consistent bandwidth
• More expensive, setup time required

Reference: See references/direct-connect.md

Azure Connectivity

1. Site-to-Site VPN

resource "azurerm_virtual_network_gateway" "vpn" {
  name                = "vpn-gateway"
  location            = azurerm_resource_group.main.location
  resource_group_name = azurerm_resource_group.main.name

  type     = "Vpn"
  vpn_type = "RouteBased"
  sku      = "VpnGw1"

  ip_configuration {
    name                          = "vnetGatewayConfig"
    public_ip_address_id          = azurerm_public_ip.vpn.id
    private_ip_address_allocation = "Dynamic"
    subnet_id                     = azurerm_subnet.gateway.id
  }
}

2. Azure ExpressRoute

• Private connection via connectivity provider
• Up to 100 Gbps
• Low latency, high reliability
• Premium for global connectivity

GCP Connectivity

1. Cloud VPN

• IPSec VPN (Classic or HA VPN)
• HA VPN: 99.99% SLA
• Up to 3 Gbps per tunnel

2. Cloud Interconnect

• Dedicated (10 Gbps, 100 Gbps)
• Partner (50 Mbps to 50 Gbps)
• Lower latency than VPN

Hybrid Network Patterns

Pattern 1: Hub-and-Spoke

On-Premises Datacenter
         ↓
    VPN/Direct Connect
         ↓
    Transit Gateway (AWS) / vWAN (Azure)
         ↓
    ├─ Production VPC/VNet
    ├─ Staging VPC/VNet
    └─ Development VPC/VNet

Pattern 2: Multi-Region Hybrid

On-Premises
    ├─ Direct Connect → us-east-1
    └─ Direct Connect → us-west-2
            ↓
        Cross-Region Peering

Pattern 3: Multi-Cloud Hybrid

On-Premises Datacenter
    ├─ Direct Connect → AWS
    ├─ ExpressRoute → Azure
    └─ Interconnect → GCP

Routing Configuration

BGP Configuration

On-Premises Router:
- AS Number: 65000
- Advertise: 10.0.0.0/8

Cloud Router:
- AS Number: 64512 (AWS), 65515 (Azure)
- Advertise: Cloud VPC/VNet CIDRs

Route Propagation

• Enable route propagation on route tables
• Use BGP for dynamic routing
• Implement route filtering
• Monitor route advertisements

Security Best Practices

1. Use private connectivity (Direct Connect/ExpressRoute)
2. Implement encryption for VPN tunnels
3. Use VPC endpoints to avoid internet routing
4. Configure network ACLs and security groups
5. Enable VPC Flow Logs for monitoring
6. Implement DDoS protection
7. Use PrivateLink/Private Endpoints
8. Monitor connections with CloudWatch/Monitor
9. Implement redundancy (dual tunnels)
10. Regular security audits

High Availability

Dual VPN Tunnels

resource "aws_vpn_connection" "primary" {
  vpn_gateway_id      = aws_vpn_gateway.main.id
  customer_gateway_id = aws_customer_gateway.primary.id
  type                = "ipsec.1"
}

resource "aws_vpn_connection" "secondary" {
  vpn_gateway_id      = aws_vpn_gateway.main.id
  customer_gateway_id = aws_customer_gateway.secondary.id
  type                = "ipsec.1"
}

Active-Active Configuration

• Multiple connections from different locations
• BGP for automatic failover
• Equal-cost multi-path (ECMP) routing
• Monitor health of all connections

Monitoring and Troubleshooting

Key Metrics

• Tunnel status (up/down)
• Bytes in/out
• Packet loss
• Latency
• BGP session status

Troubleshooting

# AWS VPN
aws ec2 describe-vpn-connections
aws ec2 get-vpn-connection-telemetry

# Azure VPN
az network vpn-connection show
az network vpn-connection show-device-config-script

Cost Optimization

1. Right-size connections based on traffic
2. Use VPN for low-bandwidth workloads
3. Consolidate traffic through fewer connections
4. Minimize data transfer costs
5. Use Direct Connect for high bandwidth
6. Implement caching to reduce traffic

Reference Files

• references/vpn-setup.md - VPN configuration guide
• references/direct-connect.md - Direct Connect setup

Related Skills

• multi-cloud-architecture - For architecture decisions
• terraform-module-library - For IaC implementation

AGI Framework Integration

Adapted for @techwavedev/agi-agent-kit Original source: antigravity-awesome-skills

Memory-First Protocol

Retrieve prior deployment configurations, rollback procedures, and incident post-mortems. Avoid re-discovering infrastructure patterns.

# Check for prior infrastructure context before starting
python3 execution/memory_manager.py auto --query "deployment configuration and patterns for Hybrid Cloud Networking"

Storing Results

After completing work, store infrastructure decisions for future sessions:

python3 execution/memory_manager.py store \
  --content "Deployment pipeline: configured blue-green deployment with health checks on port 8080" \
  --type technical --project <project> \
  --tags hybrid-cloud-networking devops

Multi-Agent Collaboration

Broadcast deployment changes so frontend and backend agents update their configurations accordingly.

python3 execution/cross_agent_context.py store \
  --agent "<your-agent>" \
  --action "Deployed infrastructure changes — updated CI/CD pipeline with new health check endpoints" \
  --project <project>

Playbook Integration

Use the ship-saas-mvp or full-stack-deploy playbook to sequence this skill with testing, documentation, and deployment verification.