Merge pull request #757 from PureStorage-OpenConnect/autopilot

rework autopilot and throttling

Author: andrewh1978

assets/autopilot/disk-filler.yml

@@ -0,0 +1,39 @@
+# pxctl volume update --max_bandwidth 10,10 <vol_id>
+# best to leverage the grafana dashboard to show IO Limits
+# https://docs.portworx.com/portworx-enterprise/operations/tune-performance/io-throttling
+apiVersion: apps/v1
+kind: StatefulSet
+metadata:
+  name: diskfiller
+spec:
+  serviceName: diskfiller
+  replicas: 1
+  selector:
+    matchLabels:
+      app: diskfiller
+  template:
+    metadata:
+      labels:
+        app: diskfiller
+    spec:
+      containers:
+      - name: diskfiller
+        image: alpine:3.23
+        command:
+          - sh
+          - -c
+          - "while :; do tr '\\0' 'X' < /dev/zero | dd of=/scratch/foo bs=8192; sleep 1; done"
+        volumeMounts:
+        - name: scratch
+          mountPath: /scratch
+      restartPolicy: Always
+  volumeClaimTemplates:
+   - metadata:
+       name: scratch
+     spec:
+       storageClassName: px-csi-db
+       accessModes:
+       - ReadWriteOnce
+       resources:
+         requests:
+           storage: 10G

assets/autopilot/expand-pvc.yml

@@ -0,0 +1,28 @@
+#kubectl get events --field-selector involvedObject.kind=AutopilotRule,involvedObject.name=volume-resize --all-namespaces --sort-by .lastTimestamp
+apiVersion: autopilot.libopenstorage.org/v1alpha1
+kind: AutopilotRule
+metadata:
+  name: volume-resize
+spec:
+  ##### selector filters the objects affected by this rule given labels
+  selector:
+    matchLabels:
+      app: diskfiller
+  ##### conditions are the symptoms to evaluate. All conditions are AND'ed
+  conditions:
+    for: 5
+    # volume usage should be less than 50%
+    expressions:
+    - key: "100 * (px_volume_usage_bytes / px_volume_capacity_bytes)"
+      operator: Gt
+      values:
+      - "50"
+  ##### action to perform when condition is true
+  actions:
+  - name: openstorage.io.action.volume/resize
+    params:
+      # resize volume by scalepercentage of current size
+      scalepercentage: "100"
+      # volume capacity should not exceed 400GiB
+      maxsize: "40Gi"
+