Cloudwatch: add support for Aurora specific RDS metrics (#6378)

pkg/api/cloudwatch/metrics.go

@@ -78,7 +78,7 @@ func init() {
 		"AWS/ML":               {"PredictCount", "PredictFailureCount"},
 		"AWS/OpsWorks":         {"cpu_idle", "cpu_nice", "cpu_system", "cpu_user", "cpu_waitio", "load_1", "load_5", "load_15", "memory_buffers", "memory_cached", "memory_free", "memory_swap", "memory_total", "memory_used", "procs"},
 		"AWS/Redshift":         {"CPUUtilization", "DatabaseConnections", "HealthStatus", "MaintenanceMode", "NetworkReceiveThroughput", "NetworkTransmitThroughput", "PercentageDiskSpaceUsed", "ReadIOPS", "ReadLatency", "ReadThroughput", "WriteIOPS", "WriteLatency", "WriteThroughput"},
-		"AWS/RDS":              {"BinLogDiskUsage", "CPUUtilization", "CPUCreditUsage", "CPUCreditBalance", "DatabaseConnections", "DiskQueueDepth", "FreeableMemory", "FreeStorageSpace", "ReplicaLag", "SwapUsage", "ReadIOPS", "WriteIOPS", "ReadLatency", "WriteLatency", "ReadThroughput", "WriteThroughput", "NetworkReceiveThroughput", "NetworkTransmitThroughput"},
+		"AWS/RDS":              {"ActiveTransactions", "AuroraBinlogReplicaLag", "AuroraReplicaLag", "AuroraReplicaLagMaximum", "AuroraReplicaLagMinimum", "BinLogDiskUsage", "BlockedTransactions", "BufferCacheHitRatio", "CommitLatency", "CommitThroughput", "CPUCreditBalance", "CPUCreditUsage", "CPUUtilization", "DatabaseConnections", "DDLLatency", "DDLThroughput", "Deadlocks", "DiskQueueDepth", "DMLLatency", "DMLThroughput", "FailedSqlStatements", "FreeableMemory", "FreeStorageSpace", "LoginFailures", "NetworkReceiveThroughput", "NetworkTransmitThroughput", "ReadIOPS", "ReadLatency", "ReadThroughput", "ReplicaLag", "ResultSetCacheHitRatio", "SelectLatency", "SelectThroughput", "SwapUsage", "TotalConnections", "VolumeReadIOPS", "VolumeWriteIOPS", "WriteIOPS", "WriteLatency", "WriteThroughput"},
 		"AWS/Route53":          {"HealthCheckStatus", "HealthCheckPercentageHealthy", "ConnectionTime", "SSLHandshakeTime", "TimeToFirstByte"},
 		"AWS/S3":               {"BucketSizeBytes", "NumberOfObjects"},
 		"AWS/SNS":              {"NumberOfMessagesPublished", "PublishSize", "NumberOfNotificationsDelivered", "NumberOfNotificationsFailed"},