[stable/elastalert]: improve templates - add variables for override fullname of chart (#21800)

* bump chart

Signed-off-by: Anatoly Bezgubov <bezgubov@sports.ru>

Co-authored-by: Anatoly Bezgubov <bezgubov@sports.ru>

stable/elastalert/Chart.yaml

@@ -1,7 +1,7 @@
 apiVersion: v1
 description: ElastAlert is a simple framework for alerting on anomalies, spikes, or other patterns of interest from data in Elasticsearch.
 name: elastalert
-version: 1.2.3
+version: 1.2.4
 appVersion: 0.2.1
 home: https://github.com/Yelp/elastalert
 icon: https://static-www.elastic.co/assets/blteb1c97719574938d/logo-elastic-elasticsearch-lt.svg

stable/elastalert/templates/_helpers.tpl

@@ -9,8 +9,17 @@ Expand the name of the chart.
 {{/*
 Create a default fully qualified app name.
 We truncate at 63 chars because some Kubernetes name fields are limited to this (by the DNS naming spec).
+If release name contains chart name it will be used as a full name.
 */}}
 {{- define "elastalert.fullname" -}}
+{{- if .Values.fullnameOverride -}}
+{{- .Values.fullnameOverride | trunc 63 | trimSuffix "-" -}}
+{{- else -}}
 {{- $name := default .Chart.Name .Values.nameOverride -}}
+{{- if contains $name .Release.Name -}}
+{{- .Release.Name | trunc 63 | trimSuffix "-" -}}
+{{- else -}}
 {{- printf "%s-%s" .Release.Name $name | trunc 63 | trimSuffix "-" -}}
 {{- end -}}
+{{- end -}}
+{{- end -}}