Multi-Cloud Cluster Peering

Connect Kubernetes clusters across AWS and GCP with WireGuard.

Prerequisites

• Two Kubernetes clusters (any cloud or on-prem)
• kubectl configured for both clusters
• helm installed

Step 1: Install Lattice Operator

helm repo add lattice https://charts.alattice.io
helm install lattice lattice/lattice-operator -n lattice --create-namespace

Repeat on both clusters.

Step 2: Configure Network CIDRs

Create a LatticeNetwork CRD on each cluster:

apiVersion: lattice.alattice.io/v1alpha1
kind: LatticeNetwork
metadata:
  name: cluster-peering
spec:
  cidr: 10.0.0.0/16
  peering:
    enabled: true
    remoteCIDR: 10.1.0.0/16

Step 3: Verify Connectivity

kubectl exec -it deploy/sample-app -- curl http://10.1.2.3:8080/health

Next Steps

• Network Policies — Control which services can communicate
• Topology Viewer — Visualize the cross-cluster mesh