*: bump Prometheus to v2.0.0-rc.1

assets/prometheus/rules/node.rules.yaml

@@ -0,0 +1,37 @@
+groups:
+- name: ./node.rules
+  rules:
+  - alert: NodeExporterDown
+    expr: absent(up{job="node-exporter"} == 1)
+    for: 10m
+    labels:
+      severity: warning
+    annotations:
+      description: Prometheus could not scrape a node-exporter for more than 10m,
+        or node-exporters have disappeared from discovery.
+      summary: node-exporter cannot be scraped
+  - alert: K8SNodeOutOfDisk
+    expr: kube_node_status_condition{condition="OutOfDisk",status="true"} == 1
+    labels:
+      service: k8s
+      severity: critical
+    annotations:
+      description: '{{ $labels.node }} has run out of disk space.'
+      summary: Node ran out of disk space.
+  - alert: K8SNodeMemoryPressure
+    expr: kube_node_status_condition{condition="MemoryPressure",status="true"} ==
+      1
+    labels:
+      service: k8s
+      severity: warning
+    annotations:
+      description: '{{ $labels.node }} is under memory pressure.'
+      summary: Node is under memory pressure.
+  - alert: K8SNodeDiskPressure
+    expr: kube_node_status_condition{condition="DiskPressure",status="true"} == 1
+    labels:
+      service: k8s
+      severity: warning
+    annotations:
+      description: '{{ $labels.node }} is under disk pressure.'
+      summary: Node is under disk pressure.