create a dedicated disk testing pod

README.md

@@ -27,6 +27,7 @@ kubectl exec -it $(kubectl get pod --selector=app=temp --output=jsonpath={.items
 ## Disk
 
 ```bash
-dd if=/dev/zero of=/tmp/nfs/output bs=16k count=100k; dd if=/tmp/nfs/output of=/dev/null; rm -f /tmp/nfs/output
+dd if=/dev/zero of=/tmp/hdd/output bs=16k count=100k; dd if=/tmp/hdd/output of=/dev/null; rm -f /tmp/hdd/output
+dd if=/dev/zero of=/tmp/extssd/output bs=16k count=100k; dd if=/tmp/extssd/output of=/dev/null; rm -f /tmp/extssd/output
 dd if=/dev/zero of=/tmp/nvme/output bs=16k count=100k; dd if=/tmp/nvme/output of=/dev/null; rm -f /tmp/nvme/output
 ```

helm/templates/deploy.yaml

@@ -24,11 +24,6 @@ spec:
           limits:
             memory: 512Mi
             cpu: "48"
-        volumeMounts:
-          - mountPath: /tmp/nfs
-            name: {{ .Release.Name }}-nfs
-          - mountPath: /tmp/nvme
-            name: {{ .Release.Name }}-nvme
       - name: iperf
         image: hub.ducoterra.net/ducoterra/iperf:latest
         tty: true
@@ -42,6 +37,23 @@ spec:
           limits:
             memory: 512Mi
             cpu: 500m
+      - name: disk
+        image: debian:latest
+        command: ["sleep", "infinity"]
+        resources:
+          requests:
+            memory: 128Mi
+            cpu: 250m
+          limits:
+            memory: 512Mi
+            cpu: 500m
+        volumeMounts:
+          - mountPath: /tmp/hdd
+            name: {{ .Release.Name }}-hdd
+          - mountPath: /tmp/nvme
+            name: {{ .Release.Name }}-nvme
+          - mountPath: /tmp/extssd
+            name: {{ .Release.Name }}-extssd
       - name: exporter
         image: hub.ducoterra.net/ducoterra/glances:latest
         command: ["glances", "-q", "--export", "statsd"]
@@ -53,9 +65,12 @@ spec:
             memory: 512Mi
             cpu: 250m
       volumes:
-        - name: {{ .Release.Name }}-nfs
+        - name: {{ .Release.Name }}-hdd
           persistentVolumeClaim:
-            claimName: {{ .Release.Name }}-nfs
+            claimName: {{ .Release.Name }}-hdd
+        - name: {{ .Release.Name }}-extssd
+          persistentVolumeClaim:
+            claimName: {{ .Release.Name }}-extssd
         - name: {{ .Release.Name }}-nvme
           persistentVolumeClaim:
             claimName: {{ .Release.Name }}-nvme

helm/templates/pvc.yaml

@@ -1,7 +1,7 @@
 apiVersion: v1
 kind: PersistentVolumeClaim
 metadata:
-  name: {{ .Release.Name }}-nfs
+  name: {{ .Release.Name }}-hdd
 spec:
   storageClassName: hdd
   accessModes:
@@ -16,6 +16,18 @@ metadata:
   name: {{ .Release.Name }}-nvme
 spec:
   storageClassName: nvme
+  accessModes:
+    - ReadWriteOnce
+  resources:
+    requests:
+      storage: 16Gi
+---
+apiVersion: v1
+kind: PersistentVolumeClaim
+metadata:
+  name: {{ .Release.Name }}-extssd
+spec:
+  storageClassName: hdd
   accessModes:
     - ReadWriteOnce
   resources: