Output rate of increase for the SLO queries

This commit:
- Also switches the rate queries severity to critical as 5%
  threshold is high for low scale/density clusters and needs to be flagged.
- Adds rate queries to openshift alerts file
Signed-off-by: Naga Ravi Chaitanya Elluri <nelluri@redhat.com>

config/alerts.yaml

@@ -91,39 +91,39 @@
 
 # etcd CPU and usage increase
 - expr: sum(rate(container_cpu_usage_seconds_total{image!='', namespace='openshift-etcd', container='etcd'}[1m])) * 100 / sum(machine_cpu_cores)  > 5
-  description: Etcd CPU usage increased significantly
-  severity: warning
+  description: Etcd CPU usage increased significantly by {{$value}}%
+  severity: critical
 
 # etcd memory usage increase
 - expr: sum(deriv(container_memory_usage_bytes{image!='', namespace='openshift-etcd', container='etcd'}[5m])) * 100 / sum(node_memory_MemTotal_bytes) > 5
-  description: Etcd memory usage increased significantly
-  severity: warning
+  description: Etcd memory usage increased significantly by {{$value}}%
+  severity: critical
 
 # Openshift API server CPU and memory usage increase
 - expr: sum(rate(container_cpu_usage_seconds_total{image!='', namespace='openshift-apiserver', container='openshift-apiserver'}[1m])) * 100 / sum(machine_cpu_cores) > 5
-  description: openshift apiserver cpu usage increased significantly
-  severity: warning
+  description: openshift apiserver cpu usage increased significantly by {{$value}}%
+  severity: critical
 
 - expr: (sum(deriv(container_memory_usage_bytes{namespace='openshift-apiserver', container='openshift-apiserver'}[5m]))) * 100 / sum(node_memory_MemTotal_bytes) > 5
-  description: openshift apiserver memory usage increased significantly
-  severity: warning
+  description: openshift apiserver memory usage increased significantly by {{$value}}%
+  severity: critical
 
 # Openshift kube API server CPU and memory usage increase
 - expr: sum(rate(container_cpu_usage_seconds_total{image!='', namespace='openshift-kube-apiserver', container='kube-apiserver'}[1m])) * 100 / sum(machine_cpu_cores) > 5
-  description: openshift apiserver cpu usage increased significantly
-  severity: warning
+  description: openshift apiserver cpu usage increased significantly by {{$value}}%
+  severity: critical
 
 - expr: (sum(deriv(container_memory_usage_bytes{namespace='openshift-kube-apiserver', container='kube-apiserver'}[5m]))) * 100 / sum(node_memory_MemTotal_bytes) > 5
-  description: openshift apiserver memory usage increased significantly
-  severity: warning
+  description: openshift apiserver memory usage increased significantly by {{$value}}%
+  severity: critical
 
 # Master node CPU usage increase
 - expr: (sum((sum(deriv(pod:container_cpu_usage:sum{container="",pod!=""}[5m])) BY (namespace, pod) * on(pod, namespace) group_left(node) (node_namespace_pod:kube_pod_info:)  )  *  on(node) group_left(role) (max by (node) (kube_node_role{role="master"})))) * 100 / sum(machine_cpu_cores) > 5
-  description: master nodes cpu usage increased significantly
-  severity: warning
+  description: master nodes cpu usage increased significantly by {{$value}}%
+  severity: critical
 
 # Master nodes memory usage increase
 - expr: (sum((sum(deriv(container_memory_usage_bytes{container="",pod!=""}[5m])) BY (namespace, pod) * on(pod, namespace) group_left(node) (node_namespace_pod:kube_pod_info:)  )  *  on(node) group_left(role) (max by (node) (kube_node_role{role="master"})))) * 100 / sum(node_memory_MemTotal_bytes) > 5
-  description: master nodes memory usage increased significantly
-  severity: warning
+  description: master nodes memory usage increased significantly by {{$value}}%
+  severity: critical
 

config/alerts_openshift.yaml

@@ -99,3 +99,41 @@
 - expr: ALERTS{severity="critical", alertstate="firing"} > 0
   description: Critical prometheus alert. {{$labels.alertname}}
   severity: warning
+
+# etcd CPU and usage increase
+- expr: sum(rate(container_cpu_usage_seconds_total{image!='', namespace='openshift-etcd', container='etcd'}[1m])) * 100 / sum(machine_cpu_cores)  > 5
+  description: Etcd CPU usage increased significantly by {{$value}}%
+  severity: critical
+
+# etcd memory usage increase
+- expr: sum(deriv(container_memory_usage_bytes{image!='', namespace='openshift-etcd', container='etcd'}[5m])) * 100 / sum(node_memory_MemTotal_bytes) > 5
+  description: Etcd memory usage increased significantly by {{$value}}%
+  severity: critical
+
+# Openshift API server CPU and memory usage increase
+- expr: sum(rate(container_cpu_usage_seconds_total{image!='', namespace='openshift-apiserver', container='openshift-apiserver'}[1m])) * 100 / sum(machine_cpu_cores) > 5
+  description: openshift apiserver cpu usage increased significantly by {{$value}}%
+  severity: critical
+
+- expr: (sum(deriv(container_memory_usage_bytes{namespace='openshift-apiserver', container='openshift-apiserver'}[5m]))) * 100 / sum(node_memory_MemTotal_bytes) > 5
+  description: openshift apiserver memory usage increased significantly by {{$value}}%
+  severity: critical
+
+# Openshift kube API server CPU and memory usage increase
+- expr: sum(rate(container_cpu_usage_seconds_total{image!='', namespace='openshift-kube-apiserver', container='kube-apiserver'}[1m])) * 100 / sum(machine_cpu_cores) > 5
+  description: openshift apiserver cpu usage increased significantly by {{$value}}%
+  severity: critical
+
+- expr: (sum(deriv(container_memory_usage_bytes{namespace='openshift-kube-apiserver', container='kube-apiserver'}[5m]))) * 100 / sum(node_memory_MemTotal_bytes) > 5
+  description: openshift apiserver memory usage increased significantly by {{$value}}%
+  severity: critical
+
+# Master node CPU usage increase
+- expr: (sum((sum(deriv(pod:container_cpu_usage:sum{container="",pod!=""}[5m])) BY (namespace, pod) * on(pod, namespace) group_left(node) (node_namespace_pod:kube_pod_info:)  )  *  on(node) group_left(role) (max by (node) (kube_node_role{role="master"})))) * 100 / sum(machine_cpu_cores) > 5
+  description: master nodes cpu usage increased significantly by {{$value}}%
+  severity: critical
+
+# Master nodes memory usage increase
+- expr: (sum((sum(deriv(container_memory_usage_bytes{container="",pod!=""}[5m])) BY (namespace, pod) * on(pod, namespace) group_left(node) (node_namespace_pod:kube_pod_info:)  )  *  on(node) group_left(role) (max by (node) (kube_node_role{role="master"})))) * 100 / sum(node_memory_MemTotal_bytes) > 5
+  description: master nodes memory usage increased significantly by {{$value}}%
+  severity: critical