Created comprehensive network documentation for BasicStack k3s cluster:
- NETWORK_ARCHITECTURE.md: Complete network architecture with diagrams,
node configuration, CNI (Flannel) details, ingress/LoadBalancer setup,
DNS configuration, TLS certificates, network policies, traffic flows,
and troubleshooting procedures
- DNS_REQUIREMENTS.md: Complete DNS record requirements for all services
including A records, MX records, SPF, DKIM, DMARC, and PTR records
- NETWORK_VERIFICATION.md: Verification report documenting current state
of all network components with findings and recommendations
Updated infrastructure README with links to new network documentation.
Key findings:
- All worker nodes correctly configured with --node-ip set to private IPs
- Flannel VXLAN properly configured with public IP annotations
- Traefik ingress controller operational
- 16/17 TLS certificates valid (registry-tls needs investigation)
- 3 LoadBalancer services properly configured
- Network policies securing database services
Addresses DEV-225: Verify and document k3s cluster network configuration
Related: DEV-224 (node-ip configuration), DEV-223 (DNS issues)
Co-Authored-By: Paperclip <noreply@paperclip.ing>
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