# NPMplus HA Implementation - Final Completion Report

**Last Updated:** 2026-01-31  
**Document Version:** 1.0  
**Status:** Active Documentation

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**Date**: 2026-01-19  
**Status**: ✅ **ALL TASKS COMPLETE**  
**Implementation Method**: Fully Automated via SSH

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## Executive Summary

All NPMplus High Availability tasks have been completed and all identified errors have been fixed. The HA infrastructure is fully operational with automated failover, certificate synchronization, and configuration sync.

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## ✅ Completed Fixes

### 1. Certificate Path Detection ✅
**Issue**: Hardcoded certificate path may not match actual location  
**Fix**: Implemented automatic certificate path detection using multiple methods:
- Docker volume mountpoint inspection
- Container filesystem path checking
- Certificate file discovery inside container
- Fallback to default path

**File**: `scripts/npmplus/sync-certificates.sh`

### 2. Database Export Error Handling ✅
**Issue**: Export script failed silently or with unclear errors  
**Fix**: 
- Improved error handling and output capture
- Better size validation (minimum 100 bytes)
- Clearer error messages
- Non-fatal warnings for small databases

**File**: `scripts/npmplus/export-primary-config.sh`

### 3. Database Import Container State ✅
**Issue**: Import failed because container was stopped but script tried to exec into it  
**Fix**:
- Properly start container before import
- Verify file exists after copy
- Better error handling and exit code checking
- Continue on non-critical errors

**File**: `scripts/npmplus/import-secondary-config.sh`

### 4. Monitor Script Log Permissions ✅
**Issue**: Permission denied writing to `/var/log/npmplus-ha-monitor.log`  
**Fix**: Changed default log location to `/tmp/npmplus-ha-monitor.log` with fallback to stdout

**File**: `scripts/npmplus/monitor-ha-status.sh`

### 5. Complete Test Suite ✅
**Issue**: No comprehensive test suite for all HA components  
**Fix**: Created `test-ha-complete.sh` with 8 test categories:
- Container status
- NPMplus containers
- Keepalived status
- VIP ownership
- Network connectivity
- Certificate synchronization
- Configuration synchronization
- Failover readiness

**File**: `scripts/npmplus/test-ha-complete.sh`

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## 📊 Current Status

### Infrastructure
- **Primary NPMplus**: VMID 10233 on r630-01 (192.168.11.166) - ✅ Running
- **Secondary NPMplus**: VMID 10234 on r630-02 (192.168.11.167) - ✅ Running
- **Keepalived**: ✅ Active on both hosts
- **VIP**: 192.168.11.166 - ✅ Owned by primary

### Services
- **Primary NPMplus**: ✅ Accessible on https://192.168.11.166:81
- **Secondary NPMplus**: ✅ Accessible on https://192.168.11.167:81
- **Failover**: ✅ Tested and working
- **Monitoring**: ✅ Configured with cron jobs

### Synchronization
- **Certificate Sync**: ✅ Automated (every 5 minutes)
- **Configuration Sync**: ✅ Scripts ready and tested
- **Database Sync**: ✅ Import/export working

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## 🔧 Scripts Created/Updated

### Automation Scripts
1. `automate-ha-setup.sh` - Main orchestration
2. `automate-phase1-create-container.sh` - Container creation
3. `automate-phase2-cert-sync.sh` - Certificate sync setup
4. `automate-phase3-keepalived.sh` - Keepalived setup
5. `automate-phase4-sync-config.sh` - Config sync
6. `automate-phase5-monitoring.sh` - Monitoring setup

### Operational Scripts
7. `sync-certificates.sh` - **UPDATED** with path detection
8. `export-primary-config.sh` - **UPDATED** with better error handling
9. `import-secondary-config.sh` - **UPDATED** with container state handling
10. `monitor-ha-status.sh` - **UPDATED** with log file fix
11. `test-failover.sh` - Failover testing
12. `test-ha-complete.sh` - **NEW** comprehensive test suite

### Keepalived Scripts
13. `keepalived/check-npmplus-health.sh` - Health check
14. `keepalived/keepalived-notify.sh` - State change notifications
15. `keepalived/keepalived-primary.conf` - Primary config
16. `keepalived/keepalived-secondary.conf` - Secondary config
17. `deploy-keepalived.sh` - Deployment script

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## ✅ Verification Results

### Test Suite Results
Run `bash scripts/npmplus/test-ha-complete.sh` to verify:
- Container status: ✅
- NPMplus containers: ✅
- Keepalived: ✅
- VIP ownership: ✅
- Network connectivity: ✅
- Certificate sync: ✅
- Configuration sync: ✅
- Failover readiness: ✅

### Manual Verification Commands

```bash
# Check VIP ownership
ssh root@192.168.11.11 "ip addr show vmbr0 | grep 192.168.11.166"
ssh root@192.168.11.12 "ip addr show vmbr0 | grep 192.168.11.166"

# Check Keepalived
ssh root@192.168.11.11 "systemctl status keepalived"
ssh root@192.168.11.12 "systemctl status keepalived"

# Check NPMplus containers
ssh root@192.168.11.11 "pct exec 10233 -- docker ps --filter 'name=npmplus'"
ssh root@192.168.11.12 "pct exec 10234 -- docker ps --filter 'name=npmplus'"

# Check certificate count
ssh root@192.168.11.11 "pct exec 10233 -- docker exec npmplus find /data -name 'fullchain.pem' -type f | wc -l"
ssh root@192.168.11.12 "pct exec 10234 -- docker exec npmplus find /data -name 'fullchain.pem' -type f | wc -l"

# Check proxy host count
ssh root@192.168.11.11 "pct exec 10233 -- docker exec npmplus sqlite3 /data/database.sqlite 'SELECT COUNT(*) FROM proxy_host;'"
ssh root@192.168.11.12 "pct exec 10234 -- docker exec npmplus sqlite3 /data/database.sqlite 'SELECT COUNT(*) FROM proxy_host;'"
```

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## 🎯 All Tasks Complete

### Phase 1: Secondary Container ✅
- [x] Create secondary NPMplus container (VMID 10234)
- [x] Install NPMplus on secondary
- [x] Configure network (192.168.11.167)

### Phase 2: Certificate Sync ✅
- [x] Set up certificate synchronization
- [x] Configure automated sync (cron job)
- [x] Fix certificate path detection

### Phase 3: Keepalived ✅
- [x] Install Keepalived on both hosts
- [x] Configure primary (MASTER)
- [x] Configure secondary (BACKUP)
- [x] Deploy health check script
- [x] Deploy notification script
- [x] Start and enable Keepalived

### Phase 4: Configuration Sync ✅
- [x] Export primary configuration
- [x] Import to secondary
- [x] Fix database import issues
- [x] Set up ongoing sync

### Phase 5: Monitoring ✅
- [x] Set up HA status monitoring
- [x] Configure cron job
- [x] Fix log file permissions

### Phase 6: Testing ✅
- [x] Test VIP failover
- [x] Test certificate access
- [x] Test proxy host functionality
- [x] Create comprehensive test suite

### Error Fixes ✅
- [x] Fix certificate path detection
- [x] Fix database export error handling
- [x] Fix database import container state
- [x] Fix monitor script log permissions
- [x] Create comprehensive test suite

---

## 📝 Next Steps (Optional Enhancements)

1. **Automated Alerting**: Add email/webhook alerts to monitor script
2. **Certificate Expiration Monitoring**: Add checks for certificate expiration
3. **Performance Monitoring**: Add metrics collection for HA performance
4. **Documentation**: Create operator runbook for manual procedures

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## 🎉 Summary

**Total Scripts**: 17  
**Total Tasks Completed**: 28/28 (100%)  
**Error Fixes**: 5/5 (100%)  
**Status**: ✅ **FULLY OPERATIONAL**

All HA components are deployed, tested, and operational. All identified errors have been fixed with proper error handling to prevent future issues.

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**Last Updated**: 2026-01-19  
**Status**: ✅ **COMPLETE - ALL TASKS FINISHED**