WIP: PVC storage stressors

du-intensive.yaml

@@ -13,8 +13,7 @@ jobs:
     errorOnVerify: true
     defaultMissingKeysWithZero: true
     objects:
-
-    # Template of Gu Pods with fedora-stress-ng
+      # Template of Gu Pods with fedora-stress-ng
       - objectTemplate: templates/common/configmap.yaml
         replicas: 2
         inputVars:
@@ -54,9 +53,9 @@ jobs:
       - objectTemplate: templates/common/configmap.yaml
         replicas: 2
       - objectTemplate: templates/common/secret.yaml
-        replicas: 4 
+        replicas: 4
 
-    # Template of burstable pods with exec probes
+      # Template of burstable pods with exec probes
       - objectTemplate: templates/webserver/webserver-deployment.yaml
         replicas: 4
         inputVars:
@@ -108,7 +107,7 @@ jobs:
               type: secret
               path: /var/secret4
 
-    # Templates of burstable pods with kubeapiserver reqs
+      # Templates of burstable pods with kubeapiserver reqs
       - objectTemplate: templates/kubectlapp/serviceaccount.yaml
         replicas: 6
       - objectTemplate: templates/kubectlapp/role.yaml
@@ -139,3 +138,14 @@ jobs:
             - name: secret-4
               type: secret
               path: /var/secret4
+
+      # Storage stress with PVC claims
+      - objectTemplate: templates/storageio/pv.yaml
+        replicas: 1
+      - objectTemplate: templates/storageio/pvc.yaml
+        replicas: 1
+      - objectTemplate: templates/storageio/deployment.yaml
+        replicas: 1
+        inputVars:
+          Image_stressng: "{{ .REGISTRY }}/fedora-stress-ng"
+          Image_nginx: "{{ .REGISTRY }}/sampleapp"

templates/storageio/deployment.yaml

@@ -0,0 +1,101 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: storage-io-{{.Replica}}
+  annotations:
+    # Disable CPU balance with CRIO
+    irq-load-balancing.crio.io: "disable"
+    cpu-load-balancing.crio.io: "disable"
+    cpu-quota.crio.io: "disable"
+  labels:
+    group: load
+    svc: storage-io-{{.Replica}}
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      name: storage-io-{{.Replica}}
+      redhat-best-practices-for-k8s.com/generic: target
+  template:
+    metadata:
+      labels:
+        group: load
+        name: storage-io-{{.Replica}}
+        redhat-best-practices-for-k8s.com/generic: target
+    spec:
+      runtimeClassName: performance-openshift-node-performance-profile
+      containers:
+        - image: "{{ .Image_stressng }}"
+          imagePullPolicy: IfNotPresent
+          name: storage-io-{{.Replica}}
+          # Request and Limits must be identical for the Pod to be assigned to the QoS Guarantee
+          resources:
+            requests:
+              cpu: 1
+              memory: 1024M
+              hugepages-1Gi: 16Gi
+            limits:
+              cpu: 1
+              memory: 1024M
+              hugepages-1Gi: 16Gi
+          env:
+            - name: stress_hdd
+              value: "1"
+          volumeMounts:
+            {{ range  $volume := .volumes }}
+            - name: {{ $volume.name }}
+              mountPath: {{ $volume.path }}
+            {{ end }}
+            - name: hugepage
+              mountPath: /hugepages
+        - name: nginx
+          image: "{{ .Image_nginx }}"
+          resources:
+            requests:
+              cpu: 1
+              memory: 256Mi
+            limits:
+              cpu: 1
+              memory: 256Mi
+          ports:
+            - containerPort: 8080
+          startupProbe:
+            httpGet:
+              path: /
+              port: 8080
+            initialDelaySeconds: 5
+            periodSeconds: 15
+          readinessProbe:
+            httpGet:
+              path: /
+              port: 8080
+            initialDelaySeconds: 5
+            periodSeconds: 60
+          livenessProbe:
+            httpGet:
+              path: /
+              port: 8080
+            initialDelaySeconds: 15
+            periodSeconds: 60
+      dnsPolicy: Default
+      terminationGracePeriodSeconds: 1
+      volumes:
+        {{ range  $volume := .volumes }}
+        - name: {{ $volume.name }}
+          {{ if eq $volume.type "configMap" }}
+          configMap:
+            name: {{ $volume.name }}
+          {{ else if eq $volume.type "secret" }}
+          secret:
+            secretName: {{ $volume.name }}
+          {{ else if eq $volume.type "persistentVolumeClaim" }}
+          persistentVolumeClaim:
+            claimName: {{ $volume.name }}
+          {{ end }}
+        {{ end }}
+        - name: hugepage
+          emptyDir:
+            medium: HugePages
+        - name: stress-storage
+          persistentVolumeClaim:
+            claimName: storage-io-pvc-{{.Replica}}

templates/storageio/pv.yaml

@@ -0,0 +1,14 @@
+apiVersion: v1
+kind: PersistentVolume
+metadata:
+  name: storage-io-pv-{{.Replica}}
+spec:
+  capacity:
+    storage: 1Gi
+  volumeMode: Filesystem
+  accessModes:
+    - ReadWriteOnce
+  persistentVolumeReclaimPolicy: Delete
+  storageClassName: standard
+  hostPath:
+    path: "/mnt/data"

templates/storageio/pvc.yaml

@@ -0,0 +1,11 @@
+apiVersion: v1
+kind: PersistentVolumeClaim
+metadata:
+  name: storage-io-pvc-{{.Replica}}
+spec:
+  accessModes:
+    - ReadWriteOnce
+  resources:
+    requests:
+      storage: 1Gi
+  storageClassName: standard