--- prometheus_server_rules_nftables_extra: [] prometheus_server_rules_nftables: - alert: NftablesFailedToReadRuleset expr: nftables_up == 0 for: 2m labels: severity: warning annotations: summary: Unable to read nftables ruleset (instance {{ '{{' }} $labels.instance {{ '}}' }}) description: "The nftables collector failed to read the ruleset from the kernel.\n VALUE = {{ '{{' }} $value {{ '}}' }}\n LABELS = {{ '{{' }} $labels {{ '}}' }}"