Major infrastructure migration and Vaultwarden PostgreSQL troubleshooting

COMPREHENSIVE CHANGES:

INFRASTRUCTURE MIGRATION:
- Migrated services to Docker Swarm on OMV800 (192.168.50.229)
- Deployed PostgreSQL database for Vaultwarden migration
- Updated all stack configurations for Docker Swarm compatibility
- Added comprehensive monitoring stack (Prometheus, Grafana, Blackbox)
- Implemented proper secret management for all services

VAULTWARDEN POSTGRESQL MIGRATION:
- Attempted migration from SQLite to PostgreSQL for NFS compatibility
- Created PostgreSQL stack with proper user/password configuration
- Built custom Vaultwarden image with PostgreSQL support
- Troubleshot persistent SQLite fallback issue despite PostgreSQL config
- Identified known issue where Vaultwarden silently falls back to SQLite
- Added ENABLE_DB_WAL=false to prevent filesystem compatibility issues
- Current status: Old Vaultwarden on lenovo410 still working, new one has config issues

PAPERLESS SERVICES:
- Successfully deployed Paperless-NGX and Paperless-AI on OMV800
- Both services running on ports 8000 and 3000 respectively
- Caddy configuration updated for external access
- Services accessible via paperless.pressmess.duckdns.org and paperless-ai.pressmess.duckdns.org

CADDY CONFIGURATION:
- Updated Caddyfile on Surface (192.168.50.254) for new service locations
- Fixed Vaultwarden reverse proxy to point to new Docker Swarm service
- Removed old notification hub reference that was causing conflicts
- All services properly configured for external access via DuckDNS

BACKUP AND DISCOVERY:
- Created comprehensive backup system for all hosts
- Generated detailed discovery reports for infrastructure analysis
- Implemented automated backup validation scripts
- Created migration progress tracking and verification reports

MONITORING STACK:
- Deployed Prometheus, Grafana, and Blackbox monitoring
- Created infrastructure and system overview dashboards
- Added proper service discovery and alerting configuration
- Implemented performance monitoring for all critical services

DOCUMENTATION:
- Reorganized documentation into logical structure
- Created comprehensive migration playbook and troubleshooting guides
- Added hardware specifications and optimization recommendations
- Documented all configuration changes and service dependencies

CURRENT STATUS:
- Paperless services: ✅ Working and accessible externally
- Vaultwarden: ❌ PostgreSQL configuration issues, old instance still working
- Monitoring: ✅ Deployed and operational
- Caddy: ✅ Updated and working for external access
- PostgreSQL: ✅ Database running, connection issues with Vaultwarden

NEXT STEPS:
- Continue troubleshooting Vaultwarden PostgreSQL configuration
- Consider alternative approaches for Vaultwarden migration
- Validate all external service access
- Complete final migration validation

TECHNICAL NOTES:
- Used Docker Swarm for orchestration on OMV800
- Implemented proper secret management for sensitive data
- Added comprehensive logging and monitoring
- Created automated backup and validation scripts

dev_documentation/security/TRAEFIK_SECURITY_CHECKLIST.md

@@ -0,0 +1,274 @@
+# Traefik Security Deployment Checklist
+
+## Pre-Deployment Security Review
+
+### Infrastructure Security
+- [ ] **SELinux Configuration**
+  - [ ] SELinux enabled and in enforcing mode
+  - [ ] Custom policy module installed for Docker socket access
+  - [ ] No unexpected AVC denials in audit logs
+  - [ ] Policy allows only necessary container permissions
+
+- [ ] **Docker Swarm Security**
+  - [ ] Swarm cluster properly initialized with secure tokens
+  - [ ] Manager nodes secured and encrypted communication enabled
+  - [ ] Overlay networks encrypted by default
+  - [ ] Docker socket access restricted to authorized services only
+
+- [ ] **Host Security**
+  - [ ] OS packages updated to latest versions
+  - [ ] Unnecessary services disabled
+  - [ ] SSH configured with key-based authentication only
+  - [ ] Firewall configured to allow only required ports (80, 443, 8080)
+  - [ ] Fail2ban or equivalent intrusion prevention configured
+
+### Network Security
+- [ ] **External Access**
+  - [ ] Only ports 80 and 443 exposed to public internet
+  - [ ] Port 8080 (API) restricted to management network only
+  - [ ] Monitoring ports (9090, 3000) on internal network only
+  - [ ] Rate limiting enabled on all entry points
+
+- [ ] **DNS Security**
+  - [ ] DNS records properly configured for all subdomains
+  - [ ] CAA records configured to restrict certificate issuance
+  - [ ] DNSSEC enabled if supported by DNS provider
+
+## Authentication & Authorization
+
+### Traefik Dashboard Access
+- [ ] **Basic Authentication Enabled**
+  - [ ] Strong username/password combination configured
+  - [ ] Bcrypt hashed passwords (work factor ≥10)
+  - [ ] Default credentials changed from documentation examples
+  - [ ] Authentication realm properly configured
+
+- [ ] **Access Controls**
+  - [ ] Dashboard only accessible via HTTPS
+  - [ ] API endpoints protected by authentication
+  - [ ] No insecure API mode enabled in production
+  - [ ] Access restricted to authorized IP ranges if possible
+
+### Service Authentication
+- [ ] **Monitoring Services**
+  - [ ] Prometheus protected by basic authentication
+  - [ ] Grafana using strong admin credentials
+  - [ ] AlertManager access restricted
+  - [ ] Default passwords changed for all services
+
+## TLS/SSL Security
+
+### Certificate Management
+- [ ] **Let's Encrypt Configuration**
+  - [ ] Valid email address configured for certificate notifications
+  - [ ] ACME storage properly secured and backed up
+  - [ ] Certificate renewal automation verified
+  - [ ] Staging environment tested before production
+
+- [ ] **TLS Configuration**
+  - [ ] Only TLS 1.2+ protocols enabled
+  - [ ] Strong cipher suites configured
+  - [ ] Perfect Forward Secrecy enabled
+  - [ ] HSTS headers configured with appropriate max-age
+
+### Certificate Validation
+- [ ] **Certificate Health**
+  - [ ] All certificates valid and trusted
+  - [ ] Certificate expiration monitoring configured
+  - [ ] Automatic renewal working correctly
+  - [ ] Certificate chain complete and valid
+
+## Security Headers & Hardening
+
+### HTTP Security Headers
+- [ ] **Mandatory Headers**
+  - [ ] Strict-Transport-Security (HSTS) with includeSubDomains
+  - [ ] X-Frame-Options: DENY
+  - [ ] X-Content-Type-Options: nosniff
+  - [ ] X-XSS-Protection: 1; mode=block
+  - [ ] Referrer-Policy: strict-origin-when-cross-origin
+
+- [ ] **Additional Security**
+  - [ ] Content-Security-Policy configured appropriately
+  - [ ] Permissions-Policy configured if applicable
+  - [ ] Server header removed or minimized
+
+### Application Security
+- [ ] **Service Configuration**
+  - [ ] exposedbydefault=false to prevent accidental exposure
+  - [ ] Health checks enabled for all services
+  - [ ] Resource limits configured to prevent DoS
+  - [ ] Non-root container execution where possible
+
+## Monitoring & Alerting Security
+
+### Security Monitoring
+- [ ] **Authentication Monitoring**
+  - [ ] Failed login attempts tracked and alerted
+  - [ ] Brute force attack detection configured
+  - [ ] Rate limiting violations monitored
+  - [ ] Unusual access pattern detection
+
+- [ ] **Infrastructure Monitoring**
+  - [ ] Service availability monitored
+  - [ ] Certificate expiration alerts configured
+  - [ ] High error rate detection
+  - [ ] Resource utilization monitoring
+
+### Log Security
+- [ ] **Log Management**
+  - [ ] Security events logged and retained
+  - [ ] Log integrity protection enabled
+  - [ ] Log access restricted to authorized personnel
+  - [ ] Log rotation and archiving configured
+
+- [ ] **Alert Configuration**
+  - [ ] Critical security alerts to immediate notification
+  - [ ] Alert escalation procedures defined
+  - [ ] Alert fatigue prevention measures
+  - [ ] Regular testing of alert mechanisms
+
+## Backup & Recovery Security
+
+### Data Protection
+- [ ] **Configuration Backups**
+  - [ ] Traefik configuration backed up regularly
+  - [ ] Certificate data backed up securely
+  - [ ] Monitoring configuration included in backups
+  - [ ] Backup encryption enabled
+
+- [ ] **Recovery Procedures**
+  - [ ] Disaster recovery plan documented
+  - [ ] Recovery procedures tested regularly
+  - [ ] RTO/RPO requirements defined and met
+  - [ ] Backup integrity verified regularly
+
+## Operational Security
+
+### Access Management
+- [ ] **Administrative Access**
+  - [ ] Principle of least privilege applied
+  - [ ] Administrative access logged and monitored
+  - [ ] Multi-factor authentication for admin access
+  - [ ] Regular access review procedures
+
+### Change Management
+- [ ] **Configuration Changes**
+  - [ ] All changes version controlled
+  - [ ] Change approval process defined
+  - [ ] Rollback procedures documented
+  - [ ] Configuration drift detection
+
+### Security Updates
+- [ ] **Patch Management**
+  - [ ] Security update notification process
+  - [ ] Regular vulnerability scanning
+  - [ ] Update testing procedures
+  - [ ] Emergency patch procedures
+
+## Compliance & Documentation
+
+### Documentation
+- [ ] **Security Documentation**
+  - [ ] Security architecture documented
+  - [ ] Incident response procedures
+  - [ ] Security configuration guide
+  - [ ] User access procedures
+
+### Compliance Checks
+- [ ] **Regular Audits**
+  - [ ] Security configuration reviews
+  - [ ] Access audit procedures
+  - [ ] Vulnerability assessment schedule
+  - [ ] Penetration testing plan
+
+## Post-Deployment Validation
+
+### Security Testing
+- [ ] **Penetration Testing**
+  - [ ] Authentication bypass attempts
+  - [ ] SSL/TLS configuration testing
+  - [ ] Header injection testing
+  - [ ] DoS resilience testing
+
+- [ ] **Vulnerability Scanning**
+  - [ ] Network port scanning
+  - [ ] Web application scanning
+  - [ ] Container image scanning
+  - [ ] Configuration security scanning
+
+### Monitoring Validation
+- [ ] **Alert Testing**
+  - [ ] Authentication failure alerts
+  - [ ] Service down alerts
+  - [ ] Certificate expiration alerts
+  - [ ] High error rate alerts
+
+### Performance Security
+- [ ] **Load Testing**
+  - [ ] Rate limiting effectiveness
+  - [ ] Resource exhaustion prevention
+  - [ ] Graceful degradation under load
+  - [ ] DoS attack simulation
+
+## Incident Response Preparation
+
+### Response Procedures
+- [ ] **Incident Classification**
+  - [ ] Security incident categories defined
+  - [ ] Response team contact information
+  - [ ] Escalation procedures documented
+  - [ ] Communication templates prepared
+
+### Evidence Collection
+- [ ] **Forensic Readiness**
+  - [ ] Log preservation procedures
+  - [ ] System snapshot capabilities
+  - [ ] Chain of custody procedures
+  - [ ] Evidence analysis tools available
+
+## Maintenance Schedule
+
+### Regular Security Tasks
+- [ ] **Weekly**
+  - [ ] Review authentication logs
+  - [ ] Check certificate status
+  - [ ] Validate monitoring alerts
+  - [ ] Review system updates
+
+- [ ] **Monthly**
+  - [ ] Access review and cleanup
+  - [ ] Security configuration audit
+  - [ ] Backup verification
+  - [ ] Vulnerability assessment
+
+- [ ] **Quarterly**
+  - [ ] Penetration testing
+  - [ ] Disaster recovery testing
+  - [ ] Security training updates
+  - [ ] Policy review and updates
+
+---
+
+## Approval Sign-off
+
+### Pre-Production Approval
+- [ ] **Security Team Approval**
+  - [ ] Security configuration reviewed: _________________ Date: _______
+  - [ ] Penetration testing completed: _________________ Date: _______
+  - [ ] Compliance requirements met: _________________ Date: _______
+
+- [ ] **Operations Team Approval**
+  - [ ] Monitoring configured: _________________ Date: _______
+  - [ ] Backup procedures tested: _________________ Date: _______
+  - [ ] Runbook documentation complete: _________________ Date: _______
+
+### Production Deployment Approval
+- [ ] **Final Security Review**
+  - [ ] All checklist items completed: _________________ Date: _______
+  - [ ] Security exceptions documented: _________________ Date: _______
+  - [ ] Go-live approval granted: _________________ Date: _______
+
+**Security Officer Signature:** ___________________________ **Date:** ___________
+
+**Operations Manager Signature:** _______________________ **Date:** ___________