Add some monitoring components forn deployer (#104)

Author: maroroman

jupyterhub/jupyterhub/base/jupyterhub-db-probe-svc.yaml

@@ -0,0 +1,17 @@
+apiVersion: v1
+kind: Service
+metadata:
+  annotations:
+    prometheus.io/scheme: http
+    prometheus.io/scrape: 'true'
+  labels:
+    app: jupyterhub-db-probe
+  name: jupyterhub-db-probe
+  namespace: redhat-ods-applications
+spec:
+  ports:
+  - name: metrics
+    port: 8080
+    targetPort: metrics
+  selector:
+    deployment: jupyterhub-db-probe

jupyterhub/jupyterhub/base/jupyterhub-db-probe.yaml

@@ -0,0 +1,40 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  annotations:
+  labels:
+    app: jupyterhub-db-probe
+  name: jupyterhub-db-probe
+  namespace: redhat-ods-applications
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      deployment: jupyterhub-db-probe
+  template:
+    metadata:
+      labels:
+        deployment: jupyterhub-db-probe
+    spec:
+      containers:
+      - env:
+        - name: JUPYTERHUB_DB_USER
+          value: jupyterhub
+        - name: JUPYTERHUB_DB_PASSWORD
+          valueFrom:
+            secretKeyRef:
+              name: jupyterhub-database-password
+              key: POSTGRESQL_PASSWORD
+        name: db-probe
+        image: quay.io/modh/jupyterhub-db-probe:v0.2
+        imagePullPolicy: Always
+        ports:
+        - containerPort: 8080
+          name: metrics
+        resources:
+          limits:
+            cpu: 300m
+            memory: 50Mi
+          requests:
+            cpu: 300m
+            memory: 50Mi

jupyterhub/jupyterhub/base/kustomization.yaml

@@ -4,6 +4,8 @@ resources:
 - jupyterhub-configmap.yaml
 - jupyterhub-secret.yaml
 - jupyterhub-db-pvc.yaml
+- jupyterhub-db-probe.yaml
+- jupyterhub-db-probe-svc.yaml
 - jupyterhub-db-dc.yaml
 - jupyterhub-db-service.yaml
 - jupyterhub-img-imagestream.yaml

monitoring/base/cluster-monitor-rbac.yaml

@@ -0,0 +1,11 @@
+apiVersion: authorization.openshift.io/v1
+kind: RoleBinding
+metadata:
+  name: cluster-monitor-rhods-reader
+  namespace: redhat-ods-monitoring
+roleRef:
+  name: cluster-reader
+subjects:
+- kind: ServiceAccount
+  name: prometheus-k8s
+  namespace: openshift-monitoring

monitoring/base/kustomization.yaml

@@ -0,0 +1,5 @@
+apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+resources:
+- rhods-rules.yaml
+- cluster-monitor-rbac.yaml

monitoring/base/rhods-rules.yaml

@@ -0,0 +1,14 @@
+apiVersion: monitoring.coreos.com/v1
+kind: PrometheusRule
+metadata:
+  labels:
+    prometheus: k8s
+    role: recording-rules
+    app: rhods
+  name: rhods-rules
+spec:
+  groups:
+  - name: rhods-usage.rules
+    rules:
+    - record: cluster:usage:consumption:rhods:cpu:seconds:rate5m
+      expr: sum(rate(container_cpu_usage_seconds_total{container="",pod=~"jupyterhub-nb.*",namespace="redhat-ods-applications"}[5m]))