Add revision history limit for master replica and for garbage collector

Signed-off-by: Omer Aplatony <omerap12@gmail.com>

deployment/helm/node-feature-discovery/templates/master.yaml

@@ -13,6 +13,7 @@ metadata:
   {{- end }}
 spec:
   replicas: {{ .Values.master.replicaCount }}
+  revisionHistoryLimit: {{ .Values.master.revisionHistoryLimit }}
   selector:
     matchLabels:
       {{- include "node-feature-discovery.selectorLabels" . | nindent 6 }}

deployment/helm/node-feature-discovery/templates/nfd-gc.yaml

@@ -13,6 +13,7 @@ metadata:
   {{- end }}
 spec:
   replicas: {{ .Values.gc.replicaCount | default 1 }}
+  revisionHistoryLimit: {{ .Values.gc.revisionHistoryLimit }}
   selector:
     matchLabels:
       {{- include "node-feature-discovery.selectorLabels" . | nindent 6 }}

deployment/helm/node-feature-discovery/values.yaml

@@ -91,6 +91,9 @@ master:
     # If not set and create is true, a name is generated using the fullname template
     name:
   
+  # specify how many old ReplicaSets for the Deployment to retain.
+  revisionHistoryLimit: 
+
   rbac:
     create: true
 
@@ -544,6 +547,9 @@ gc:
   deploymentAnnotations: {}
   affinity: {}
 
+  # specify how many old ReplicaSets for the Deployment to retain.
+  revisionHistoryLimit: 
+
 # Optionally use encryption for worker <--> master comms
 # TODO: verify hostname is not yet supported
 #

docs/deployment/helm.md

@@ -144,6 +144,7 @@ API's you need to install the prometheus operator in your cluster.
 | `master.nfdApiParallelism` | integer | 10                                      | Specifies the maximum number of concurrent node updates. |
 | `master.config`            | dict    |                                         | NFD master [configuration](../reference/master-configuration-reference) |
 | `master.args`              | array   | []                                      | Additional [command line arguments](../reference/master-commandline-reference.md) to pass to nfd-master |
+| `master.revisionHistoryLimit` | integer |                                      | Specify how many old ReplicaSets for this Deployment you want to retain. [revisionHistoryLimit](https://kubernetes.io/docs/concepts/workloads/controllers/deployment/#revision-history-limit) |
 
 ### Worker pod parameters
 
@@ -220,6 +221,7 @@ API's you need to install the prometheus operator in your cluster.
 | `gc.deploymentAnnotations`            | dict   | {}      | Garbage collector deployment [annotations](https://kubernetes.io/docs/concepts/overview/working-with-objects/annotations/)           |
 | `gc.affinity`                         | dict   | {}      | Garbage collector pod [affinity](https://kubernetes.io/docs/tasks/configure-pod-container/assign-pods-nodes-using-node-affinity/)    |
 | `gc.args`                             | array  | []      | Additional [command line arguments](../reference/gc-commandline-reference.md) to pass to nfd-gc |
+| `gc.revisionHistoryLimit`             | integer |        | Specify how many old ReplicaSets for this Deployment you want to retain. [revisionHistoryLimit](https://kubernetes.io/docs/concepts/workloads/controllers/deployment/#revision-history-limit) |
 
 <!-- Links -->
 [rbac]: https://kubernetes.io/docs/reference/access-authn-authz/rbac/