Make curator path configurable

Some es curator images do not use /usr/bin/curator for the executable. This PS
makes the path configurable via values.yaml.

Change-Id: I640e0f4928683810ef0b4a6d4dbac9bdf865aa2a

elasticsearch/Chart.yaml

@@ -15,7 +15,7 @@ apiVersion: v1
 appVersion: v8.9.0
 description: OpenStack-Helm ElasticSearch
 name: elasticsearch
-version: 0.2.28
+version: 0.2.29
 home: https://www.elastic.co/
 sources:
   - https://github.com/elastic/elasticsearch

elasticsearch/templates/bin/_curator.sh.tpl

@@ -15,4 +15,4 @@ limitations under the License.
 
 set -ex
 
-exec /usr/bin/curator --config /etc/config/config.yml /etc/config/action_file.yml
+exec {{ .Values.conf.curator.executable }} --config /etc/config/config.yml /etc/config/action_file.yml

elasticsearch/values.yaml

@@ -595,6 +595,7 @@ conf:
   ceph:
     admin_keyring: null
   curator:
+    executable: /usr/bin/curator
     action_file: {}
       # Remember, leave a key empty if there is no value.  None will be a string,
       # not a Python "NoneType"

releasenotes/notes/elasticsearch.yaml

@@ -38,4 +38,5 @@ elasticsearch:
   - 0.2.26 Add 2023.1 Ubuntu Focal overrides
   - 0.2.27 Update Rook to 1.12.5 and Ceph to 18.2.0
   - 0.2.28 Utilize bucket claim CRD when using with Rook
+  - 0.2.29 Make es curator path configurable
 ...