Changes:
- Add tailscale_control_plane_ips list to k3s-server defaults
- Include all 3 control plane Tailscale IPs (100.120.55.97, 100.108.90.123, 100.92.149.85)
- Update primary k3s install to add Tailscale IPs to TLS certificates
- Enables kubectl access via Tailscale without certificate errors
After next deploy, cluster will be accessible via:
- kubectl --server=https://100.120.55.97:6443 (or any CP tailscale IP)
- kubectl --server=https://k8s-cluster-cp-1:6443 (via tailscale DNS)
Changes:
- Use LB private IP (10.0.1.5) instead of public IP for cluster joins
- Add LB private IP to k3s TLS SANs on primary control plane
- This allows secondary CPs and workers to verify certificates when joining via LB
Fixes x509 certificate validation error when joining via LB public IP.
Major changes:
- Terraform: Scale to 3 control planes (cx23) + 3 workers (cx33)
- Terraform: Add Hetzner Load Balancer (lb11) for Kubernetes API
- Terraform: Add kube_api_lb_ip output
- Ansible: Add community.network collection to requirements
- Ansible: Update inventory to include LB endpoint
- Ansible: Configure secondary CPs and workers to join via LB
- Ansible: Add k3s_join_endpoint variable for HA joins
- Workflow: Add imports for cp-2, cp-3, and worker-3
- Docs: Update STABLE_BASELINE.md with HA topology and phase gates
Topology:
- 3 control planes (cx23 - 2 vCPU, 8GB RAM each)
- 3 workers (cx33 - 4 vCPU, 16GB RAM each)
- 1 Load Balancer (lb11) routing to all 3 control planes on port 6443
- Workers and secondary CPs join via LB endpoint for HA
Cost impact: +~€26/month (2 extra CPs + 1 extra worker + LB)
