Only alert for nodes that currently exist (#1661)

helm/exporter-node/Chart.yaml

@@ -1,7 +1,7 @@
 apiVersion: v1
 description: A Helm chart for Kubernetes node exporter
 name: exporter-node
-version: 0.4.3
+version: 0.4.4
 maintainers:
   - name: Giancarlo Rubio
     email: gianrubio@gmail.com

helm/exporter-node/templates/node.rules.yaml

@@ -29,7 +29,7 @@ groups:
         or node-exporters have disappeared from discovery
       summary: Prometheus could not scrape a node-exporter
   - alert: NodeDiskRunningFull
-    expr: predict_linear(node_filesystem_free{job="node-exporter",mountpoint!~"^/etc/(?:resolv.conf|hosts|hostname)$"}[6h], 3600 * 24)
+    expr: predict_linear(node_filesystem_free{job="node-exporter",mountpoint!~"^/etc/(?:resolv.conf|hosts|hostname)$"}[6h], 3600 * 24) and on(instance) up{job="node-exporter"}
     for: 30m
     labels:
       severity: warning
@@ -38,7 +38,7 @@ groups:
         full within the next 24 hours (mounted at {{`{{$labels.mountpoint}}`}})
       summary: Node disk is running full within 24 hours
   - alert: NodeDiskRunningFull
-    expr: predict_linear(node_filesystem_free{job="node-exporter",mountpoint!~"^/etc/(?:resolv.conf|hosts|hostname)$"}[30m], 3600 * 2) < 0
+    expr: predict_linear(node_filesystem_free{job="node-exporter",mountpoint!~"^/etc/(?:resolv.conf|hosts|hostname)$"}[30m], 3600 * 2) < 0 and on(instance) up{job="node-exporter"}
     for: 10m
     labels:
       severity: critical

helm/kube-prometheus/Chart.yaml

@@ -7,4 +7,4 @@ maintainers:
 name: kube-prometheus
 sources:
   - https://github.com/coreos/prometheus-operator
-version: 0.0.100
+version: 0.0.101

helm/kube-prometheus/requirements.yaml

@@ -58,7 +58,7 @@ dependencies:
     repository: https://s3-eu-west-1.amazonaws.com/coreos-charts/stable/
 
   - name: exporter-node
-    version: 0.4.3
+    version: 0.4.4
     #e2e-repository: file://../exporter-node
     repository: https://s3-eu-west-1.amazonaws.com/coreos-charts/stable/
     condition: deployExporterNode