Vitaliy Filyuchkov

Try using Prometheus function "[absent()](https://prometheus.io/docs/prometheus/latest/querying/functions/#absent)", for example: ``` ALERT nginx_absent IF absent(container_cpu_usage_seconds_total{com_docker_compose_service="nginx"}) FOR 5s LABELS { severity="critical" } ANNOTATIONS { SUMMARY= "Instance {{$labels.instance}} down", DESCRIPTION= "Instance {{$labels.instance}}, Service/Job ={{$labels.job}} is...

or another option: ``` ALERT ContainerKilled EXPR: time() - container_last_seen > 60 FOR: 0m LABELS: severity="critical" ANNOTATIONS: SUMMARY= "Container killed (instance {{ $labels.instance }})" DESCRIPTION= "A container has disappeared\n VALUE...

@vnngoanhtuan @kerneltravel Take a look please [https://wiki.openssl.org/index.php/Compilation_and_Installation](https://wiki.openssl.org/index.php/Compilation_and_Installation) - maybe there is information you need here.