smom-dbis-138/docs/operations/status-reports/INFRASTRUCTURE_STATUS_ANALYSIS.md

Infrastructure Status Analysis

Current Cluster Status Breakdown

Summary

• Total Clusters: 25 (24 deployment regions + 1 admin region)
• Ready (Succeeded): 1/25 (4%)
• Creating: 0
• Failed: 7/25 (28%)
• Canceled: 16/25 (64%)
• Missing: 1/25 (4%)

Status Breakdown

✅ Ready Clusters (1)

• az-p-we-aks-main (West Europe - Admin region)
  • Status: Succeeded
  • Power State: Running
  • Purpose: Administrative cluster (no validators/sentries)

❌ Failed Clusters (7)

Failed clusters are in a terminal error state and cannot be updated:

1. az-p-bc-aks-main (Belgium Central) - Power: Deallocated
2. az-p-cc-aks-main (Canada Central) - Power: Deallocated
3. az-p-fc-aks-main (France Central) - Power: Deallocated
4. az-p-gwc-aks-main (Germany West Central) - Power: Deallocated
5. az-p-noe-aks-main (Norway East) - Power: Deallocated
6. az-p-sc-aks-main (Spain Central) - Power: Deallocated
7. az-p-ukw-aks-main (UK West) - Power: Deallocated

Common Issues:

• Clusters stopped during creation/update
• Terraform errors: "Managed Cluster is in stopped state, no operations except for start are allowed"
• Resource allocation failures
• Quota limitations

⚠️ Canceled Clusters (16)

Canceled clusters were interrupted during deployment:

1. az-p-ae-aks-main (Australia East)
2. az-p-ase-aks-main (Australia Southeast)
3. az-p-ci-aks-main (Central India)
4. az-p-ea-aks-main (East Asia)
5. az-p-in-aks-main (Italy North)
6. az-p-je-aks-main (Japan East)
7. az-p-jw-aks-main (Japan West)
8. az-p-kc-aks-main (Korea Central)
9. az-p-ks-aks-main (Korea South)
10. az-p-mc-aks-main (Mexico Central)
11. az-p-ne-aks-main (North Europe)
12. az-p-pc-aks-main (Poland Central)
13. az-p-si-aks-main (South India)
14. az-p-sea-aks-main (Southeast Asia)
15. az-p-sn-aks-main (Switzerland North)
16. az-p-uks-aks-main (UK South)

Common Issues:

• Deployment was canceled/interrupted
• Terraform process was stopped
• User cancellation
• Timeout during creation

Root Cause Analysis

Primary Issues:

1. Stopped State Problem:

   • Clusters were stopped during Terraform updates
   • Error: "Managed Cluster is in stopped state, no operations except for start are allowed"
   • Terraform cannot update stopped clusters
   • Clusters need to be started before updates

2. Deployment Interruption:

   • Terraform deployment was interrupted/canceled
   • Multiple deployment attempts left clusters in inconsistent states
   • State lock issues prevented proper reconciliation

3. Quota/Limit Issues:

   • vCPU quota constraints
   • Resource allocation failures
   • AKS surge node consumption

4. State Mismatch:

   • Clusters exist in Azure but not in Terraform state
   • Import issues prevented proper state management
   • Deleted clusters not properly removed from state

Solutions Needed

Immediate Actions:

1. Clean Up Failed Clusters:

   # Delete failed clusters so they can be recreated
   ./scripts/deployment/delete-bad-clusters.sh
   

2. Start Stopped Clusters (if any):

   # Start any stopped clusters
   ./scripts/deployment/start-stopped-clusters.sh
   

3. Re-run Terraform:

   cd terraform/well-architected/cloud-sovereignty
   terraform apply -parallelism=128 -auto-approve
   

4. Clean Up Canceled Clusters:

   • Canceled clusters may need manual deletion
   • Or wait for automatic cleanup

Long-term Solutions:

1. Fix Terraform Configuration:

   • Prevent cluster stopping during updates
   • Add lifecycle rules to prevent accidental stops
   • Improve error handling

2. Improve Deployment Process:

   • Use blue/green deployment for node pool updates
   • Implement proper state management
   • Add rollback capabilities

3. Quota Management:

   • Request quota increases if needed
   • Optimize resource allocation
   • Monitor quota usage

Current Workarounds

1. West Europe Cluster Ready: Can proceed with deployment to this cluster
2. Scripts Ready: All deployment scripts are ready to use when clusters are available
3. Infrastructure Foundation: Resource groups and networking are mostly created

Next Steps

1. Delete failed/canceled clusters
2. Re-run Terraform deployment
3. Wait for clusters to become ready
4. Re-execute next steps once more clusters are ready

Monitoring

• Terraform Log: /tmp/terraform-apply-unlocked.log
• Cluster Status: az aks list --query '[?contains(name, "az-p-")].{name:name, state:provisioningState}' -o table
• Dashboard: ./scripts/deployment/deployment-dashboard.sh