fix: Add parameters for tuning revisionHistory and securityContext

Signed-off-by: Matt Dainty <[email protected]>

Author: bodgit

charts/cni-metrics-helper/README.md

@@ -59,6 +59,9 @@ The following table lists the configurable parameters for this chart and their d
 | serviceAccount.name          | The name of the ServiceAccount to use                         | nil                |
 | serviceAccount.create        | Specifies whether a ServiceAccount should be created          | true               |
 | serviceAccount.annotations   | Specifies the annotations for ServiceAccount                  | {}                 |
+| revisionHistoryLimit         | The number of revisions to keep                               | 10                 |
+| podSecurityContext           | SecurityContext to set on the pod                             | {}                 |
+| containerSecurityContext     | SecurityContext to set on the container                       | {}                 |
 
 Specify each parameter using the `--set key=value[,key=value]` argument to `helm install` or provide a YAML file containing the values for the above parameters:
 

charts/cni-metrics-helper/templates/deployment.yaml

@@ -6,6 +6,7 @@ metadata:
   labels:
     k8s-app: cni-metrics-helper
 spec:
+  revisionHistoryLimit: {{ .Values.revisionHistoryLimit }}
   selector:
     matchLabels:
       k8s-app: cni-metrics-helper
@@ -22,7 +23,13 @@ spec:
 {{- end }}
 {{- if .Values.resources }}
         resources: {{ toYaml .Values.resources | nindent 10 }}
+{{- end }}
+{{- if .Values.containerSecurityContext }}
+        securityContext: {{ toYaml .Values.containerSecurityContext | nindent 10 }}
 {{- end }}
         name: cni-metrics-helper
         image: "{{- if .Values.image.override }}{{- .Values.image.override }}{{- else }}{{- .Values.image.account }}.dkr.ecr.{{- .Values.image.region }}.{{- .Values.image.domain }}/cni-metrics-helper:{{- .Values.image.tag }}{{- end}}"
       serviceAccountName: {{ template "cni-metrics-helper.serviceAccountName" . }}
+{{- if .Values.podSecurityContext }}
+      securityContext: {{ toYaml .Values.podSecurityContext | nindent 8 }}
+{{- end }}

charts/cni-metrics-helper/values.yaml

@@ -28,3 +28,9 @@ serviceAccount:
     # eks.amazonaws.com/role-arn: arn:aws:iam::AWS_ACCOUNT_ID:role/IAM_ROLE_NAME  
 
 resources: {}
+
+revisionHistoryLimit: 10
+
+podSecurityContext: {}
+
+containerSecurityContext: {}