make bsu volume count limit custom

Author: aniszosc

CHANGELOG-0.x.md

@@ -37,3 +37,7 @@
 # v0.0.13beta
 ## Notable changes
 * Update default Max BSU Volumes value
+
+# v0.0.14beta
+## Notable changes
+* Make Max BSU Volumes value custom

docs/README.md

@@ -46,7 +46,7 @@ Following sections are Kubernetes specific. If you are Kubernetes user, use foll
 ## Container Images:
 |OSC BSU CSI Driver Version | Image                                     |
 |---------------------------|-------------------------------------------|
-| OSC-MIGRATION branch      |outscale/osc-ebs-csi-driver:v0.0.13beta    |
+| OSC-MIGRATION branch      |outscale/osc-ebs-csi-driver:v0.0.14beta    |
 
 ## Features
 * **Static Provisioning** - create a new or migrating existing BSU volumes, then create persistence volume (PV) from the BSU volume and consume the PV from container using persistence volume claim (PVC).
@@ -89,7 +89,7 @@ Following sections are Kubernetes specific. If you are Kubernetes user, use foll
     
     ## deploy the pod
     export IMAGE_NAME=outscale/osc-ebs-csi-driver
-    export IMAGE_TAG="v0.0.13beta"
+    export IMAGE_TAG="v0.0.14beta"
     git clone git@github.com:outscale-dev/osc-bsu-csi-driver.git
     cd osc-bsu-csi-driver
     helm uninstall osc-bsu-csi-driver  --namespace kube-system

osc-bsu-csi-driver/Chart.yaml

@@ -1,8 +1,8 @@
 apiVersion: v1
-appVersion: "v0.0.13beta"
+appVersion: "v0.0.14beta"
 name: osc-bsu-csi-driver
 description: A Helm chart for Outscale BSU CSI Driver
-version: 0.5.0
+version: 0.6.0
 kubeVersion: ">=1.14.0-0"
 home: https://github.com/outscale-dev/osc-bsu-csi-driver
 sources:

osc-bsu-csi-driver/templates/controller.yaml

@@ -68,6 +68,7 @@ spec:
           env:
             - name: CSI_ENDPOINT
               value: unix:///var/lib/csi/sockets/pluginproxy/csi.sock
+
             - name: OSC_ACCESS_KEY
               valueFrom:
                 secretKeyRef:
@@ -84,6 +85,10 @@ spec:
             - name: AWS_REGION
               value: {{ .Values.region }}
             {{- end }}
+            {{- if .Values.maxBsuVolumes }}
+            - name: MAX_BSU_VOLUMES
+              value: "{{ .Values.maxBsuVolumes }}"
+            {{- end }}
             - name: BACKOFF_DURATION
               value: "{{ .Values.backoff.duration }}"
             - name: BACKOFF_FACTOR

osc-bsu-csi-driver/templates/node.yaml

@@ -68,6 +68,10 @@ spec:
               value: "{{ .Values.backoff.factor }}"
             - name: BACKOFF_STEPS
               value: "{{ .Values.backoff.steps }}"
+            {{- if .Values.maxBsuVolumes }}
+            - name: MAX_BSU_VOLUMES
+              value: "{{ .Values.maxBsuVolumes }}"
+            {{- end }}
           volumeMounts:
             - name: kubelet-dir
               mountPath: /var/lib/kubelet

osc-bsu-csi-driver/values.yaml

@@ -6,7 +6,7 @@ replicaCount: 2
 
 image:
   repository: outscale/osc-ebs-csi-driver
-  tag: v0.0.13beta
+  tag: v0.0.14beta
   pullPolicy: IfNotPresent
 
 # set the verbosity level of plugins
@@ -102,6 +102,9 @@ k8sTagClusterId: ""
 # region: us-east-1
 region: ""
 
+# Max bsu limits
+maxBsuVolumes: "25"
+
 node:
   podAnnotations: {}
   tolerateAllTaints: true

pkg/driver/node.go

@@ -638,7 +638,15 @@ func findScsiVolume(findName string) (device string, err error) {
 
 // getVolumesLimit returns the limit of volumes that the node supports
 func (d *nodeService) getVolumesLimit() int64 {
-	return defaultMaxBSUVolumes
+	value := os.Getenv("MAX_BSU_VOLUMES")
+	if value == "" {
+		return defaultMaxBSUVolumes
+	}
+	max_value, err := strconv.Atoi(value)
+	if err != nil {
+		return defaultMaxBSUVolumes
+	}
+	return int64(max_value)
 }
 
 // hasMountOption returns a boolean indicating whether the given