[bitnami/elasticsearch] Add support for coordinating.extraRoles (bitnami#17104)

* [bitnami/elasticsearch] Add support for coordinating.extraRoles

Signed-off-by: Miguel Ruiz <miruiz@vmware.com>

* Update README.md with readme-generator-for-helm

Signed-off-by: Bitnami Containers <bitnami-bot@vmware.com>

---------

Signed-off-by: Miguel Ruiz <miruiz@vmware.com>
Signed-off-by: Bitnami Containers <bitnami-bot@vmware.com>
Co-authored-by: Bitnami Containers <bitnami-bot@vmware.com>

Author: migruiz4

bitnami/elasticsearch/Chart.yaml

@@ -24,4 +24,4 @@ maintainers:
 name: elasticsearch
 sources:
   - https://github.com/bitnami/charts/tree/main/bitnami/elasticsearch
-version: 19.10.1
+version: 19.10.2

bitnami/elasticsearch/README.md

@@ -345,6 +345,7 @@ helm delete --purge my-release
 | Name                                                       | Description                                                                                                               | Value           |
 | ---------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------- | --------------- |
 | `coordinating.replicaCount`                                | Number of coordinating-only replicas to deploy                                                                            | `2`             |
+| `coordinating.extraRoles`                                  | Append extra roles to the node role                                                                                       | `[]`            |
 | `coordinating.pdb.create`                                  | Enable/disable a Pod Disruption Budget creation                                                                           | `false`         |
 | `coordinating.pdb.minAvailable`                            | Minimum number/percentage of pods that should remain scheduled                                                            | `1`             |
 | `coordinating.pdb.maxUnavailable`                          | Maximum number/percentage of pods that may be made unavailable                                                            | `""`            |

bitnami/elasticsearch/templates/coordinating/statefulset.yaml

@@ -146,7 +146,7 @@ spec:
             - name: ELASTICSEARCH_IS_DEDICATED_NODE
               value: "yes"
             - name: ELASTICSEARCH_NODE_ROLES
-              value: ""
+              value: {{ ternary "" (join "," .Values.coordinating.extraRoles) (empty .Values.coordinating.extraRoles) | quote }}
             - name: ELASTICSEARCH_TRANSPORT_PORT_NUMBER
               value: {{ .Values.containerPorts.transport | quote }}
             - name: ELASTICSEARCH_HTTP_PORT_NUMBER

bitnami/elasticsearch/values.yaml

@@ -1096,6 +1096,11 @@ coordinating:
   ##
   replicaCount: 2
 
+  ## @param coordinating.extraRoles Append extra roles to the node role
+  ## NOTE: In Elasticsearch, all nodes act as coordinators, coordinating-only nodes do not have any other role by default.
+  ##
+  extraRoles: []
+
   ## Pod Disruption Budget configuration
   ## ref: https://kubernetes.io/docs/tasks/run-application/configure-pdb
   ## @param coordinating.pdb.create Enable/disable a Pod Disruption Budget creation