PromQL expression to exclude multiple labels

promql.md

Sample scenario :

How to exclude a specific mount-point value of a specific host in a metric node_filesystem_free_bytes ?

node_filesystem_free_bytes{} unless node_filesystem_free_bytes{instance="10.10.0.1",mountpoint="/dir"}

The above query will show available bytes of all hosts & mountpoints except mountpoint /dir on 10.10.0.1

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Stackoverflow answer : Link