cluster query_prometheus_db

Query Prometheus with a list of PromQueries read in a file

The metrics_file is a multi-line list, with first the name of the metric, prefixed with ‘#’ Then the definition of the metric, than can spread on multiple lines, until the next # is found.

Example:

promquery_file:
  # sutest__cluster_cpu_capacity
  sum(cluster:capacity_cpu_cores:sum)
  # sutest__cluster_memory_requests
     sum(
          kube_pod_resource_request{resource="memory"}
          *
          on(node) group_left(role) (
            max by (node) (kube_node_role{role=~".+"})
          )
        )
  # openshift-operators CPU request
  sum(kube_pod_container_resource_requests{namespace=~'openshift-operators',resource='cpu'})
  # openshift-operators CPU limit
  sum(kube_pod_container_resource_limits{namespace=~'openshift-operators',resource='cpu'})
  # openshift-operators CPU usage
  sum(rate(container_cpu_usage_seconds_total{namespace=~'openshift-operators'}[5m]))

Parameters

promquery_file

• File where the Prometheus Queries are stored. See the example above to understand the format.

dest_dir

• Directory where the metrics should be stored

namespace

• The namespace where the metrics should searched for

duration_s

• The duration of the history to query

start_ts

• The start timestamp of the history to query. Incompatible with duration_s flag.

end_ts

• The end timestamp of the history to query. Incompatible with duration_s flag.