THE CLUSTER NEXT DOOR

Multi-site Kubernetes Federation & Failover Architecture

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SIMULATION ACTIVE: SITE OUTAGE
Request Entry → Cloudflare Edge → Resolving Active Site...
Application Tiers (Karmada Orchestrated)
Frontend Ingress
nginx • k3s-m
Backend API
Go API • k3s-m
☀️ Solar Array 3.4 kW (Battery 94%)
Frontend Ingress
nginx • k3s-c
Backend API
Go API • k3s-c
☀️ Solar Array 2.8 kW (Battery 91%)
EKS Ingress
Inactive (scale-to-zero)
Backup Web Pod
Not active
Tailscale VPN Gateway • Streaming replication
Database Tiers (CloudNativePG Clusters)
🐘
PostgreSQL 16
store-db • Read-Write
S3 WAL Backup
Continuous Archive
🐘
PostgreSQL 16
store-db-replica • Read-Only (serving figurines)
Archive Sync
Streaming from primary + serving reads
S3 Glacier Archive
Point-In-Time recovery vault
Fed Cluster —
Serving Pod —
Release Version —
CNCF Simulator