The rules were already added to rules.yml but the blackbox.nix file still had them, causing duplicate 'groups' key errors. Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Add blackbox exporter to monitoring01 to probe TLS endpoints and alert on expiring certificates. Monitors all ACME-managed certificates from OpenBao PKI including Caddy auto-TLS services. Alerts: - tls_certificate_expiring_soon (< 7 days, warning) - tls_certificate_expiring_critical (< 24h, critical) - tls_probe_failed (connectivity issues) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>