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5 commits

Author SHA1 Message Date
Paperclip CTO
27d26fb11b Document DNS configuration and service CIDR fix 
- Fixed Service CIDR documentation (10.96.0.0/16, not 10.43.0.0/16)
- Added comprehensive DNS configuration guide
- Documented kubelet cluster-dns requirements
- Added CoreDNS forward configuration details
- Documented DNS CIDR mismatch troubleshooting (DEV-223)

Co-Authored-By: Paperclip <noreply@paperclip.ing>
 2026-07-06 18:22:53 +00:00
CTO Agent
f3034af04a Update k3s cluster documentation 
- Add CLUSTER_ACCESS.md with comprehensive cluster access guide
- Fix Service CIDR in K3S_OPERATIONS.md (10.43.0.0/16, not 10.96.0.0/12)
- Document API server instability fix (cluster-cidr configuration)
- Add troubleshooting section for CIDR mismatch issues
- Update change history with cluster update details

Co-Authored-By: Paperclip <noreply@paperclip.ing>
 2026-07-06 17:54:53 +00:00
CTO Agent
2c0e7f22b1 Add k3s cluster management automation and documentation 
- Add k3s node provisioning script with version pinning
- Add comprehensive K3S_OPERATIONS.md documentation
- Add k3s system-upgrade-controller configuration

This addresses DEV-221: prevents version skew issues by:
1. Enforcing version pinning when adding new nodes
2. Providing automated provisioning script
3. Setting up automated upgrades via upgrade controller
4. Documenting all cluster operations procedures

Co-Authored-By: Paperclip <noreply@paperclip.ing>
 2026-07-06 17:08:21 +00:00
CTO Agent
8054ef4018 Implement automatic TLS certificate renewal for Stalwart 
Added Stakater Reloader to automatically restart Stalwart pods when
TLS certificates are renewed by cert-manager. This ensures seamless
certificate rotation without manual intervention.

Changes:
- Deploy Stakater Reloader in infrastructure/networking/
- Add Reloader annotation to Stalwart StatefulSet to watch stalwart-tls secret
- Document certificate renewal process and troubleshooting

The certificate is managed by cert-manager with Let's Encrypt and will
automatically renew 30 days before expiration (renewal date: 2026-08-20).
Reloader detects secret updates and triggers a rolling restart of the
Stalwart StatefulSet to load the new certificate.

Co-Authored-By: Paperclip <noreply@paperclip.ing>
 2026-07-04 16:48:48 +00:00
CTO Agent
c64f9ab0d0 Initialize CD/CI repository structure with Stalwart example 
Set up the repository structure following GitOps principles:
- apps/ for application deployments (Stalwart as example)
- infrastructure/ for cluster-wide configs (networking, monitoring)
- docs/ for general documentation

Migrated complete Stalwart deployment configuration including:
- Multiple deployment variants (basic, OIDC-enabled)
- Helm values files
- Monitoring and dashboard configurations
- Operational documentation (backup/restore, bootstrap)
- Configuration patches and fixes

Added comprehensive README files at each level to guide future use.

Co-Authored-By: Paperclip <noreply@paperclip.ing>
 2026-07-01 18:08:31 +00:00