Merge pull request #1870 from squat/alert_readability

contrib/.../alerts: improve alert messages

jsonnet/kube-prometheus/alerts/alertmanager.libsonnet

@@ -21,7 +21,7 @@
           {
             alert: 'AlertmanagerDownOrMissing',
             annotations: {
-              description: 'An unexpected number of Alertmanagers are scraped or Alertmanagers disappeared from discovery.',
+              description: 'An unexpected number of Alertmanagers were scraped or disappeared from discovery.',
               summary: 'Alertmanager down or missing',
             },
             expr: |||

jsonnet/kube-prometheus/alerts/general.libsonnet

@@ -7,7 +7,7 @@
           {
             alert: 'TargetDown',
             annotations: {
-              description: '{{ $value }}% of {{ $labels.job }} targets are down.',
+              description: '{{ $value }}% of the {{ $labels.job }} targets are down.',
               summary: 'Targets are down',
             },
             expr: '100 * (count(up == 0) BY (job) / count(up) BY (job)) > 10',
@@ -19,7 +19,7 @@
           {
             alert: 'DeadMansSwitch',
             annotations: {
-              description: 'This is a DeadMansSwitch meant to ensure that the entire Alerting pipeline is functional.',
+              description: 'This is a DeadMansSwitch meant to ensure that the entire alerting pipeline is functional.',
               summary: 'Alerting DeadMansSwitch',
             },
             expr: 'vector(1)',

jsonnet/kube-prometheus/alerts/node.libsonnet

@@ -7,7 +7,7 @@
           {
             alert: 'NodeDiskRunningFull',
             annotations: {
-              message: 'Device {{ $labels.device }} of node-exporter {{ $labels.namespace }}/{{ $labels.pod }} is running full within the next 24 hours.',
+              message: 'Device {{ $labels.device }} of node-exporter {{ $labels.namespace }}/{{ $labels.pod }} will be full within the next 24 hours.',
             },
             expr: |||
               (node:node_filesystem_usage: > 0.85) and (predict_linear(node:node_filesystem_avail:[6h], 3600 * 24) < 0)
@@ -20,7 +20,7 @@
           {
             alert: 'NodeDiskRunningFull',
             annotations: {
-              message: 'Device {{ $labels.device }} of node-exporter {{ $labels.namespace }}/{{ $labels.pod }} is running full within the next 2 hours.',
+              message: 'Device {{ $labels.device }} of node-exporter {{ $labels.namespace }}/{{ $labels.pod }} will be full within the next 2 hours.',
             },
             expr: |||
               (node:node_filesystem_usage: > 0.85) and (predict_linear(node:node_filesystem_avail:[30m], 3600 * 2) < 0)