MLE-14114: Fix bug for Helm upgrade when fullnameOverride is set (#228)

* MLE-14114: fix bug for fullnameOverride with upgrade

* fix typo

---------

Co-authored-by: Peng Zhou <[email protected]>

Author: pengzhouml

charts/templates/_helpers.tpl

@@ -38,8 +38,18 @@ oldFullname is the name used before 1.1.x release
 {{- true }}
 {{- else }}
 {{- if .Values.fullnameOverride  -}}
+{{- $overridenName := trim .Values.fullnameOverride -}}
+{{- $labels := (lookup "apps/v1" "StatefulSet" .Release.Namespace $overridenName).metadata.labels  -}}
+{{- $chartVersionFull := get $labels "helm.sh/chart" -}}
+{{- $chartVersionString := trimPrefix "marklogic-" $chartVersionFull -}}
+{{- $chartVersionString := $chartVersionString | replace "." "" -}}
+{{- $chartVersionDigit := int $chartVersionString}}
+{{- if lt $chartVersionDigit 110  -}}
 {{- false }}
 {{- else }}
+{{- true }}
+{{- end }}
+{{- else }}
 {{- $newCm := (lookup "apps/v1" "StatefulSet" .Release.Namespace (include "marklogic.newFullname" .)) }}
 {{- if $newCm  }}
 {{- true }}