fix: replace datetime.UTC with timezone.utc for Python 3.12+ compatibility

infra/scripts/chaos_orchestrator.py

@@ -11,7 +11,7 @@ import logging
 import subprocess
 import sys
 import time
-from datetime import datetime, UTC, timedelta
+from datetime import datetime, timezone, timedelta
 from pathlib import Path
 from typing import Dict, List, Optional
 
@@ -108,7 +108,7 @@ class ChaosOrchestrator:
     def generate_report(self, output_file: Optional[str] = None):
         """Generate a comprehensive chaos test report"""
         report = {
-            "report_generated": datetime.now(datetime.UTC).isoformat(),
+            "report_generated": datetime.now(timezone.utc).isoformat(),
             "namespace": self.namespace,
             "orchestration": self.results,
             "recommendations": []
@@ -204,7 +204,7 @@ class ChaosOrchestrator:
     async def run_all_scenarios(self, scenarios: List[str], scenario_args: Dict[str, List[str]]):
         """Run all specified chaos test scenarios"""
         logger.info("Starting chaos testing orchestration")
-        self.results["orchestration_start"] = datetime.now(datetime.UTC).isoformat()
+        self.results["orchestration_start"] = datetime.now(timezone.utc).isoformat()
         
         for scenario in scenarios:
             args = scenario_args.get(scenario, [])
@@ -215,7 +215,7 @@ class ChaosOrchestrator:
             if result:
                 self.results["scenarios"].append(result)
         
-        self.results["orchestration_end"] = datetime.now(datetime.UTC).isoformat()
+        self.results["orchestration_end"] = datetime.now(timezone.utc).isoformat()
         
         # Calculate summary metrics
         self.calculate_summary_metrics()

infra/scripts/chaos_test_coordinator.py

@@ -12,7 +12,7 @@ import time
 import logging
 import subprocess
 import sys
-from datetime import datetime, UTC
+from datetime import datetime, timezone
 from typing import Dict, List, Optional
 
 logging.basicConfig(level=logging.INFO, format='%(asctime)s - %(levelname)s - %(message)s')
@@ -192,7 +192,7 @@ class ChaosTestCoordinator:
     async def run_test(self, outage_duration: int = 60, load_duration: int = 120):
         """Run the complete chaos test"""
         logger.info("Starting coordinator outage chaos test")
-        self.metrics["test_start"] = datetime.now(datetime.UTC).isoformat()
+        self.metrics["test_start"] = datetime.now(timezone.utc).isoformat()
         
         # Phase 1: Generate initial load
         logger.info("Phase 1: Generating initial load")
@@ -200,7 +200,7 @@ class ChaosTestCoordinator:
         
         # Phase 2: Induce outage
         logger.info("Phase 2: Inducing coordinator outage")
-        self.metrics["outage_start"] = datetime.now(datetime.UTC).isoformat()
+        self.metrics["outage_start"] = datetime.now(timezone.utc).isoformat()
         
         if not self.delete_coordinator_pods():
             logger.error("Failed to induce outage")
@@ -216,7 +216,7 @@ class ChaosTestCoordinator:
         
         # Phase 3: Monitor recovery
         logger.info("Phase 3: Monitoring service recovery")
-        self.metrics["outage_end"] = datetime.now(datetime.UTC).isoformat()
+        self.metrics["outage_end"] = datetime.now(timezone.utc).isoformat()
         
         if not await self.wait_for_recovery():
             logger.error("Service did not recover")
@@ -227,7 +227,7 @@ class ChaosTestCoordinator:
         await self.generate_load(load_duration)
         
         # Calculate metrics
-        self.metrics["test_end"] = datetime.now(datetime.UTC).isoformat()
+        self.metrics["test_end"] = datetime.now(timezone.utc).isoformat()
         self.metrics["mttr"] = self.metrics["recovery_time"]
         
         # Save results

infra/scripts/chaos_test_database.py

@@ -12,7 +12,7 @@ import time
 import logging
 import subprocess
 import sys
-from datetime import datetime, UTC
+from datetime import datetime, timezone
 from typing import Dict, List, Optional
 
 logging.basicConfig(level=logging.INFO, format='%(asctime)s - %(levelname)s - %(message)s')
@@ -263,7 +263,7 @@ class ChaosTestDatabase:
     async def run_test(self, failure_type: str = "connection", failure_duration: int = 60):
         """Run the complete database chaos test"""
         logger.info(f"Starting database chaos test - failure type: {failure_type}")
-        self.metrics["test_start"] = datetime.now(datetime.UTC).isoformat()
+        self.metrics["test_start"] = datetime.now(timezone.utc).isoformat()
         
         # Phase 1: Baseline test
         logger.info("Phase 1: Baseline connectivity test")
@@ -282,7 +282,7 @@ class ChaosTestDatabase:
         
         # Phase 3: Induce database failure
         logger.info("Phase 3: Inducing database failure")
-        self.metrics["failure_start"] = datetime.now(datetime.UTC).isoformat()
+        self.metrics["failure_start"] = datetime.now(timezone.utc).isoformat()
         
         if failure_type == "connection":
             if not self.simulate_database_connection_failure():
@@ -311,7 +311,7 @@ class ChaosTestDatabase:
         
         # Phase 5: Restore database and monitor recovery
         logger.info("Phase 5: Restoring database")
-        self.metrics["failure_end"] = datetime.now(datetime.UTC).isoformat()
+        self.metrics["failure_end"] = datetime.now(timezone.utc).isoformat()
         
         if not self.restore_database():
             logger.error("Failed to restore database")
@@ -327,7 +327,7 @@ class ChaosTestDatabase:
         await self.generate_load(60)
         
         # Final metrics
-        self.metrics["test_end"] = datetime.now(datetime.UTC).isoformat()
+        self.metrics["test_end"] = datetime.now(timezone.utc).isoformat()
         self.metrics["mttr"] = self.metrics["recovery_time"]
         
         # Save results

infra/scripts/chaos_test_network.py

@@ -12,7 +12,7 @@ import time
 import logging
 import subprocess
 import sys
-from datetime import datetime, UTC
+from datetime import datetime, timezone
 from typing import Dict, List, Optional
 
 logging.basicConfig(level=logging.INFO, format='%(asctime)s - %(levelname)s - %(message)s')
@@ -244,7 +244,7 @@ class ChaosTestNetwork:
     async def run_test(self, partition_duration: int = 60, partition_ratio: float = 0.5):
         """Run the complete network partition chaos test"""
         logger.info("Starting network partition chaos test")
-        self.metrics["test_start"] = datetime.now(datetime.UTC).isoformat()
+        self.metrics["test_start"] = datetime.now(timezone.utc).isoformat()
         
         # Get all blockchain pods
         all_pods = self.get_blockchain_pods()
@@ -270,7 +270,7 @@ class ChaosTestNetwork:
         
         # Phase 3: Apply network partition
         logger.info("Phase 3: Applying network partition")
-        self.metrics["partition_start"] = datetime.now(datetime.UTC).isoformat()
+        self.metrics["partition_start"] = datetime.now(timezone.utc).isoformat()
         
         if not self.apply_network_partition(remaining_pods, partition_pods):
             logger.error("Failed to apply network partition")
@@ -287,7 +287,7 @@ class ChaosTestNetwork:
         
         # Phase 5: Remove partition and monitor recovery
         logger.info("Phase 5: Removing network partition")
-        self.metrics["partition_end"] = datetime.now(datetime.UTC).isoformat()
+        self.metrics["partition_end"] = datetime.now(timezone.utc).isoformat()
         
         if not self.remove_network_partition(all_pods):
             logger.error("Failed to remove network partition")
@@ -312,7 +312,7 @@ class ChaosTestNetwork:
         await self.generate_load(60)
         
         # Final metrics
-        self.metrics["test_end"] = datetime.now(datetime.UTC).isoformat()
+        self.metrics["test_end"] = datetime.now(timezone.utc).isoformat()
         self.metrics["mttr"] = self.metrics["recovery_time"]
         
         # Save results