Kubernetes control plane status dashboard

dashboards/control-plane-status.libsonnet

@@ -0,0 +1,119 @@
+local grafana = import 'grafonnet/grafana.libsonnet';
+local dashboard = grafana.dashboard;
+local graphPanel = grafana.graphPanel;
+local prometheus = grafana.prometheus;
+local promgrafonnet = import '../lib/promgrafonnet/promgrafonnet.libsonnet';
+local row = grafana.row;
+local numbersinglestat = promgrafonnet.numbersinglestat;
+{
+  grafanaDashboards+:: {
+    'control-plane-status.json':
+      local apiserversStat =
+        numbersinglestat.new(
+          'API Servers UP',
+          '(sum(up{%(kubeApiserverSelector)s} == 1) / sum(up{%(kubeApiserverSelector)s}))' % $._config,
+        )
+        .withTextNullValue('N/A')
+        .withFormat('percentunit');
+
+      local controllerManagersStat =
+        numbersinglestat.new(
+          'Controller Mangers UP',
+          '(sum(up{%(kubeControllerManagerSelector)s} == 1) / sum(up{%(kubeControllerManagerSelector)s}))' % $._config,
+        )
+        .withTextNullValue('N/A')
+        .withFormat('percentunit');
+
+      local schedulersStat =
+        numbersinglestat.new(
+          'Schedulers UP',
+          '(sum(up{%(kubeSchedulerSelector)s} == 1) / sum(up{%(kubeSchedulerSelector)s}))' % $._config,
+        )
+        .withTextNullValue('N/A')
+        .withFormat('percentunit');
+
+      local apiErrorRateStat =
+        numbersinglestat.new(
+          'API Request Error Rate',
+          'max(sum by(instance) (rate(apiserver_request_count{%(kubeApiserverSelector)s, code=~"5.."}[5m])) / sum by(instance) (rate(apiserver_request_count{%(kubeApiserverSelector)s}[5m])))' % $._config,
+        )
+        .withTextNullValue('N/A')
+        .withFormat('percentunit');
+
+      local apiRequestLatency =
+        graphPanel.new(
+          'API Request Latency',
+          datasource='$datasource',
+          span=12,
+        )
+        .addTarget(prometheus.target(
+          'sum by(verb) (rate(cluster_quantile:apiserver_request_latencies:histogram_quantile[5m]) >= 0)',
+          legendFormat='{{verb}}',
+        ));
+
+      local apiRequestRate =
+        graphPanel.new(
+          'API Request Rate',
+          datasource='$datasource',
+          span=12,
+        )
+        .addTarget(prometheus.target(
+          'sum by(instance) (rate(apiserver_request_count{%(kubeApiserverSelector)s, code!~"2.."}[5m]))' % $._config,
+          legendFormat='{{instance}} Error Rate',
+        ))
+        .addTarget(prometheus.target(
+          'sum by(instance) (rate(apiserver_request_count{%(kubeApiserverSelector)s}[5m]))' % $._config,
+          legendFormat='{{instance}} Request Rate',
+        ));
+
+      local e2eSchedulingLatency =
+        graphPanel.new(
+          'End to End Scheduling Latency',
+          datasource='$datasource',
+          span=12,
+        )
+        .addTarget(prometheus.target(
+          'cluster_quantile:scheduler_e2e_scheduling_latency:histogram_quantile',
+          legendFormat='{{quantile}}',
+        ));
+
+      dashboard.new(
+        'Kubernetes Control Plane Status',
+        time_from='now-1h',
+      ).addTemplate(
+        {
+          current: {
+            text: 'Prometheus',
+            value: 'Prometheus',
+          },
+          hide: 0,
+          label: null,
+          name: 'datasource',
+          options: [],
+          query: 'prometheus',
+          refresh: 1,
+          regex: '',
+          type: 'datasource',
+        },
+      )
+      .addRow(
+        row.new(height='100px')
+        .addPanel(apiserversStat)
+        .addPanel(controllerManagersStat)
+        .addPanel(schedulersStat)
+        .addPanel(apiErrorRateStat)
+      )
+      .addRow(
+        row.new()
+        .addPanel(apiRequestLatency)
+      )
+      .addRow(
+        row.new()
+        .addPanel(apiRequestRate)
+      )
+      .addRow(
+        row.new()
+        .addPanel(e2eSchedulingLatency)
+      ),
+  },
+}

dashboards/dashboards.libsonnet

@@ -1,3 +1,4 @@
+(import 'control-plane-status.libsonnet') +
 (import 'node.libsonnet') +
 (import 'pods.libsonnet') +
 (import 'resources.libsonnet') +

lib/promgrafonnet/numbersinglestat.libsonnet

@@ -44,5 +44,8 @@ local prometheus = grafana.prometheus;
           fillColor: 'rgba(31, 118, 189, 0.18)',
         },
       },
+      withFormat(format):: self {
+        format: format,
+      },
     },
 }