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

assets/prometheus/rules/general.rules.yaml

@@ -0,0 +1,48 @@
+groups:
+- name: ./general.rules
+  rules:
+  - alert: TargetDown
+    expr: 100 * (count(up == 0) BY (job) / count(up) BY (job)) > 10
+    for: 10m
+    labels:
+      severity: warning
+    annotations:
+      description: '{{ $value }}% or more of {{ $labels.job }} targets are down.'
+      summary: Targets are down
+  - alert: DeadMansSwitch
+    expr: vector(1)
+    labels:
+      severity: none
+    annotations:
+      description: This is a DeadMansSwitch meant to ensure that the entire Alerting
+        pipeline is functional.
+      summary: Alerting DeadMansSwitch
+  - alert: TooManyOpenFileDescriptors
+    expr: 100 * (process_open_fds / process_max_fds) > 95
+    for: 10m
+    labels:
+      severity: critical
+    annotations:
+      description: '{{ $labels.job }}: {{ $labels.namespace }}/{{ $labels.pod }} ({{
+        $labels.instance }}) is using {{ $value }}% of the available file/socket descriptors.'
+      summary: too many open file descriptors
+  - record: instance:fd_utilization
+    expr: process_open_fds / process_max_fds
+  - alert: FdExhaustionClose
+    expr: predict_linear(instance:fd_utilization[1h], 3600 * 4) > 1
+    for: 10m
+    labels:
+      severity: warning
+    annotations:
+      description: '{{ $labels.job }}: {{ $labels.namespace }}/{{ $labels.pod }} ({{
+        $labels.instance }}) instance will exhaust in file/socket descriptors soon'
+      summary: file descriptors soon exhausted
+  - alert: FdExhaustionClose
+    expr: predict_linear(instance:fd_utilization[10m], 3600) > 1
+    for: 10m
+    labels:
+      severity: critical
+    annotations:
+      description: '{{ $labels.job }}: {{ $labels.namespace }}/{{ $labels.pod }} ({{
+        $labels.instance }}) instance will exhaust in file/socket descriptors soon'
+      summary: file descriptors soon exhausted