title: Prometheus: grouping metrics by metric names
body: <p>Is there a way to group all metrics of an app by metric names? A portion from a query listing all metrics for an app (i.e. <code>{app="bar"}</code>) :</p>
  
  <pre><code>ch_qos_logback_core_Appender_all_total{affiliation="foo",app="bar", instance="baz-3-dasp",job="kubernetes-service-endpoints",kubernetes_name="bar",kubernetes_namespace="foobarz",kubernetes_node="mypaas-dev-node3.fud.com",updatedBy="janedoe"}   44
  ch_qos_logback_core_Appender_debug_total{affiliation="foo",app="bar", instance="baz-3-dasp",job="kubernetes-service-endpoints",kubernetes_name="bar",kubernetes_namespace="foobarz",kubernetes_node="mypaas-dev-node23.fud.com",updatedBy="deppba"} 32
  </code></pre>
  
  <p>I have also tried to use wildcard in the metric name, prometheus is complaining about that. Looking at the metrics, I can see that some of them have dynamic names, most probably delivered by dropwizard metrics. What I ultimately want is a list of all available metrics.</p>