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Patroni has no Leader
critical

Description A leader node (neither primary nor standby) cannot be found inside the cluster {{ $labels.scope }}
Query 
>>>
	
				
					(max by (scope) (
				
			
				
					
				
			
				
					) < 1) and (max by (scope) (
				
			
				
					
				
			
				
					) < 1)
Query Explanation

The rule groups metrics by scope and checks that the highest value of patroni_master is less than 1 and the highest value of patroni_standby_leader is also less than 1; in other words, no node reports being a master or a standby leader. When this condition is true for a given scope, the alert fires, indicating the cluster has lost its leader.

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