Add new dashboard

monitoring/dashboards/os_metrics.jsonnet

@@ -0,0 +1,58 @@
+local grafana = import "grafana.libsonnet";
+
+local labels = {
+  labels: 'instance=~"$instance", job=~"$job"',
+};
+
+grafana.dashboard({
+  name: "OS Metrics",
+  path: std.thisFile,
+  uid: "aqxitqs1",
+  refresh: "30s",
+
+  templates: [
+    {
+      name: "instance",
+      query: 'label_values(process_cpu_seconds_total, instance)',
+    },
+    {
+      name: "job",
+      query: 'label_values(process_cpu_seconds_total{instance=~"$instance"}, job)',
+    },
+  ],
+
+  rows: [{
+    panels: [
+      [{
+        name: "CPU usage",
+        axis: {min: 0, format: grafana.formats.percent, label: "cores"},
+        expressions: {
+          "{{instance}} {{job}}": |||
+            sum by (instance, job) (
+              rate(process_cpu_seconds_total{%(labels)s}[2m])
+            )
+          ||| % labels,
+        },
+      }],
+      [{
+        name: "Memory (RSS)",
+        axis: {min: 0, format: grafana.formats.bytes},
+        expressions: {
+          "{{instance}} {{job}}": |||
+            process_resident_memory_bytes{%(labels)s}
+          ||| % labels,
+        },
+      }],
+      [{
+        name: "Open file descriptors",
+        axis: {min: 0, labels: "File descriptors"},
+        expressions: {
+          "{{instance}} {{job}}": |||
+            process_open_fds{%(labels)s}
+          ||| % labels,
+        },
+      }],
+    ],
+  }],
+
+})

monitoring/dashboards/overview.jsonnet

@@ -105,6 +105,7 @@ local service_status_table = {
 grafana.dashboard({
   name: "Overview",
   uid: "rjd405mn",
+  refresh: "30s",
 
   rows: [