disk usage graphs

bundles/telegraf/metadata.py

@@ -46,7 +46,12 @@ defaults = {
                         'memory_rss',
                     ],
                 }],
-                'diskio': [{}],
+                'diskio': [{
+                    'fieldpass': [
+                        'read_bytes',
+                        'write_bytes',
+                    ],
+                }],
                 'kernel': [{}],
                 'mem': [{}],
                 'processes': [{}],
@@ -60,6 +65,7 @@ defaults = {
         'cpu',
         'mem',
         'disk_io',
+        'disk_usage',
         'net_io',
         'proc_cpu',
         'proc_ram',

data/grafana/flux.mako

@@ -5,7 +5,7 @@ from(bucket: "${bucket}")
   |> filter(fn: (r) => ${' or '.join(f'r["{key}"] == "{value}"' for value in values)})
 % endfor
 % if function == 'derivative':
-  |> derivative()
+  |> derivative(nonNegative: true)
 % endif
 % if negative:
   |> map(fn: (r) => ({r with _value: r._value * - 1.0}))

data/grafana/rows/disk_usage.py

@@ -0,0 +1,37 @@
+{
+    'root_usage': {
+        'stacked': True,
+        'queries': {
+            'usage': {
+                'filters': {
+                    '_measurement': 'disk',
+                    'path': '/',
+                    '_field': [
+                        'used',
+                        'free',
+                    ],
+                },
+                'function': 'mean',
+            },
+        },
+        'min': 0,
+        'unit': 'bytes',
+    },
+    'root_inodes': {
+        'stacked': True,
+        'queries': {
+            'inodes': {
+                'filters': {
+                    '_measurement': 'disk',
+                    'path': '/',
+                    '_field': [
+                        'inodes_used',
+                        'inodes_free',
+                    ],
+                },
+                'function': 'mean',
+            },
+        },
+        'min': 0,
+    },
+}