# Authentication Error Fix - "invalid PVE ticket"

**Date**: 2025-12-13  
**Status**: 🔧 **FIXING**

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## Issue

### Symptom
- **Error**: "401 permission denied - invalid PVE ticket"
- **Frequency**: Intermittent to continuous
- **Impact**: **BLOCKS ALL VM CREATION**
- **Affected**: Both ML110-01 and R630-01 nodes

### Error Details
```
GET /nodes/r630-01/status failed: 401 permission denied - invalid PVE ticket
node r630-01 is not reachable or unhealthy
```

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## Root Cause Analysis

### Previous Fix Applied
- Changed from `req.AddCookie()` to `req.Header.Set("Cookie", ...)`
- Reason: `AddCookie()` automatically URL-encodes values, breaking token format

### Current Status
- Code fix is in place ✅
- Provider rebuilt and restarted ✅
- But errors still occurring ⚠️

### Possible Causes
1. **Provider not using latest code** - Pod may be using old image
2. **Token format issue** - Token may not be in correct format
3. **Token validity** - Token may be expired or invalid
4. **Cookie header format** - May need different format

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## Investigation Steps

### 1. Verify Token Validity
- Test token manually with curl
- Verify token works with both endpoints
- Check token format matches Proxmox expectations

### 2. Verify Code Fix
- Check if Cookie header fix is in code
- Verify provider is using latest image
- Ensure provider pod restarted with new image

### 3. Test Authentication
- Test token with exact format from controller
- Verify Cookie header is set correctly
- Check HTTP request format

---

## Fix Applied

### Code Changes
- **File**: `crossplane-provider-proxmox/pkg/proxmox/http_client.go`
- **Change**: `req.AddCookie()` → `req.Header.Set("Cookie", fmt.Sprintf("PVEAuthCookie=%s", c.token))`

### Provider Rebuild
- Rebuilt provider image
- Loaded into kind cluster
- Restarted provider pod

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## Verification

### After Fix
- Check authentication errors (should be 0)
- Verify node health checks pass
- Monitor VM creation progress

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## Next Steps

1. ✅ Verify token is valid
2. ✅ Test token manually
3. ✅ Rebuild provider with latest code
4. ✅ Restart provider pod
5. ⏳ Monitor for resolution

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**Last Updated**: 2025-12-13  
**Status**: 🔧 **FIXING - VERIFYING RESULTS**