[stable/ndm]: add node selector and toleration to ndm exporter (#668)

* [stable/ndm]: add node selector and toleration to ndm exporter

- add toleration and node selector for NDM exporter pods
- update chart version
- update values.yaml
- update README

Signed-off-by: Akhil Mohan <akhil.mohan@datacore.com>

Author: akhilerm

deploy/helm/charts/Chart.yaml

@@ -1,7 +1,7 @@
 apiVersion: v2
 name: openebs-ndm
 description: Helm chart for OpenEBS Node Disk Manager - a Kubernetes native storage device management solution. For instructions on how to install, refer to https://openebs.github.io/node-disk-manager/.
-version: 1.8.0
+version: 1.8.1
 appVersion: 1.8.0
 icon: https://raw.githubusercontent.com/cncf/artwork/master/projects/openebs/icon/color/openebs-icon-color.png
 home: http://www.openebs.io/

deploy/helm/charts/README.md

@@ -45,4 +45,16 @@ spec:
             - name: METRICS_LISTEN_PORT
               value: :{{ .Values.ndmExporter.clusterExporter.metricsPort }}
             {{- end }}
-{{- end }}
+{{- if .Values.imagePullSecrets }}
+      imagePullSecrets:
+{{ toYaml .Values.imagePullSecrets | indent 8 }}
+{{- end }}
+{{- if .Values.ndmExporter.clusterExporter.nodeSelector }}
+      nodeSelector:
+{{ toYaml .Values.ndmExporter.clusterExporter.nodeSelector | indent 8 }}
+{{- end }}
+{{- if .Values.ndmExporter.clusterExporter.tolerations }}
+      tolerations:
+{{ toYaml .Values.ndmExporter.clusterExporter.tolerations | indent 8 }}
+{{- end }}
+{{- end }}

deploy/helm/charts/templates/cluster-exporter.yaml

@@ -159,9 +159,9 @@ spec:
       # kubectl label node <node-name> "openebs.io/nodegroup"="storage-node"
       #nodeSelector:
       #  "openebs.io/nodegroup": "storage-node"
-{{- with .Values.imagePullSecrets }}
+{{- if .Values.imagePullSecrets }}
       imagePullSecrets:
-        {{- toYaml . | nindent 6 }}
+{{ toYaml .Values.imagePullSecrets | indent 8 }}
 {{- end }}
 {{- if .Values.ndm.nodeSelector }}
       nodeSelector:

deploy/helm/charts/templates/daemonset.yaml

@@ -68,9 +68,9 @@ spec:
         - name: OPENEBS_IO_IMAGE_PULL_SECRETS
           value: "{{- range $index, $secret := .Values.imagePullSecrets}}{{if $index}},{{end}}{{ $secret.name }}{{- end}}"
 {{- end }}
-{{- with .Values.imagePullSecrets }}
+{{- if .Values.imagePullSecrets }}
       imagePullSecrets:
-        {{- toYaml . | nindent 6 }}
+{{ toYaml .Values.imagePullSecrets | indent 8 }}
 {{- end }}
 {{- if .Values.ndmOperator.nodeSelector }}
       nodeSelector:

deploy/helm/charts/templates/deployment.yaml

@@ -46,4 +46,17 @@ spec:
             - name: METRICS_LISTEN_PORT
               value: :{{ .Values.ndmExporter.nodeExporter.metricsPort }}
             {{- end }}
-{{- end }}
+{{- if .Values.imagePullSecrets }}
+      imagePullSecrets:
+{{ toYaml .Values.imagePullSecrets | indent 8 }}
+{{- end }}
+{{- if .Values.ndmExporter.nodeExporter.nodeSelector }}
+      nodeSelector:
+{{ toYaml .Values.ndmExporter.nodeExporter.nodeSelector | indent 8 }}
+{{- end }}
+{{- if .Values.ndmExporter.nodeExporter.tolerations }}
+      tolerations:
+{{ toYaml .Values.ndmExporter.nodeExporter.tolerations | indent 8 }}
+{{- end }}
+{{- end }}
+

deploy/helm/charts/templates/node-exporter.yaml

@@ -100,6 +100,8 @@ ndmExporter:
     # If not set, service will not be created to expose metrics endpoint to serviceMonitor
     # and listen-port flag will not be set and container port will be empty.
     metricsPort: 9101
+    nodeSelector: {}
+    tolerations: []
   clusterExporter:
     name: cluster-exporter
     podLabels:
@@ -108,6 +110,8 @@ ndmExporter:
     # If not set, service will not be created to expose metrics endpoint to serviceMonitor
     # and listen-port flag will not be set and container port will be empty.
     metricsPort: 9100
+    nodeSelector: {}
+    tolerations: []
 
 helperPod:
   image: