Update helm test for Elasticsearch

Removing the use of python during helm test script as it
is no longer in the image.

Change-Id: Id8feff1bee8c3f2dd277307d176f6a535c5f7ba6

elasticsearch/Chart.yaml

@@ -15,7 +15,7 @@ apiVersion: v1
 appVersion: v8.9.0
 description: OpenStack-Helm ElasticSearch
 name: elasticsearch
-version: 0.3.7
+version: 0.3.8
 home: https://www.elastic.co/
 sources:
   - https://github.com/elastic/elasticsearch

elasticsearch/templates/bin/_helm-tests.sh.tpl

@@ -15,11 +15,6 @@ limitations under the License.
 
 set -ex
 
-python='python'
-if [[ $(which python3) ]]; then
-    python='python3'
-fi
-
 function create_test_index () {
   index_result=$(curl ${CACERT_OPTION} -K- <<< "--user ${ELASTICSEARCH_USERNAME}:${ELASTICSEARCH_PASSWORD}" \
   -XPUT "${ELASTICSEARCH_ENDPOINT}/test_index?pretty" -H 'Content-Type: application/json' -d'
@@ -31,9 +26,9 @@ function create_test_index () {
       }
     }
   }
-  ' | $python -c "import sys, json; print(json.load(sys.stdin)['acknowledged'])")
-  if [ "$index_result" == "True" ];
-  then
+  ' | grep -o '"acknowledged" *: *true')
+
+  if [ -n "$index_result" ]; then
     echo "PASS: Test index created!";
   else
     echo "FAIL: Test index not created!";

releasenotes/notes/elasticsearch.yaml

@@ -48,4 +48,5 @@ elasticsearch:
   - 0.3.5 Remove gateway node role
   - 0.3.6 Add 2024.1 Ubuntu Jammy overrides
   - 0.3.7 Add 2024.2 overrides
+  - 0.3.8 Remove use of python in helm tests
 ...