MichaelFisher1997
ff31cb4e74
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)
65 lines
2.1 KiB
Markdown
65 lines
2.1 KiB
Markdown
# Stable Private-Only Baseline
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This document defines the current engineering target for this repository.
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## Topology
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- 3 control planes (HA etcd cluster)
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- 3 workers
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- Hetzner Load Balancer for Kubernetes API
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- private Hetzner network
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- Tailscale operator access
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## In Scope
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- Terraform infrastructure bootstrap
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- Ansible k3s bootstrap with external cloud provider
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- **HA control plane (3 nodes with etcd quorum)**
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- **Hetzner Load Balancer for Kubernetes API**
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- **Hetzner CCM deployed via Ansible (before workers join)**
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- **Hetzner CSI for persistent volumes (via Flux)**
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- Flux core reconciliation
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- External Secrets Operator with Doppler
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- Tailscale private access
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- Persistent volume provisioning validated
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## Deferred for Later Phases
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- Observability stack (deferred - complex helm release needs separate debugging)
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## Out of Scope
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- public ingress or DNS
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- public TLS
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- app workloads
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- DR / backup strategy
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- upgrade strategy
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## Phase Gates
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1. Terraform apply completes for HA topology (3 CP, 3 workers, 1 LB).
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2. Load Balancer is healthy with all 3 control plane targets.
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3. Primary control plane bootstraps with `--cluster-init`.
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4. Secondary control planes join via Load Balancer endpoint.
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5. **CCM deployed via Ansible before workers join** (fixes uninitialized taint issue).
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6. Workers join successfully via Load Balancer and all nodes show proper `providerID`.
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7. etcd reports 3 healthy members.
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8. Flux source and infrastructure reconciliation are healthy.
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9. **CSI deploys and creates `hcloud-volumes` StorageClass**.
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10. **PVC provisioning tested and working**.
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11. External Secrets sync required secrets.
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12. Tailscale private access works.
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13. Terraform destroy succeeds cleanly or via workflow retry.
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## Success Criteria
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✅ **ACHIEVED** - HA Cluster with CCM/CSI:
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- Build 1: Initial CCM/CSI deployment and validation (2026-03-23)
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- Build 2: Full destroy/rebuild cycle successful (2026-03-23)
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🔄 **IN PROGRESS** - HA Control Plane Validation:
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- Build 3: Deploy 3-3 topology with Load Balancer
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- Build 4: Destroy/rebuild to validate HA configuration
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Success requires two consecutive HA rebuilds passing all phase gates with no manual fixes.
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