feat: add some templates from bitnami/common

templates/_errors.tpl

@@ -0,0 +1,23 @@
+{{/* vim: set filetype=mustache: */}}
+{{/*
+Through error when upgrading using empty passwords values that must not be empty.
+
+Usage:
+{{- $validationError00 := include "common.validations.values.single.empty" (dict "valueKey" "path.to.password00" "secret" "secretName" "field" "password-00") -}}
+{{- $validationError01 := include "common.validations.values.single.empty" (dict "valueKey" "path.to.password01" "secret" "secretName" "field" "password-01") -}}
+{{ include "common.errors.upgrade.passwords.empty" (dict "validationErrors" (list $validationError00 $validationError01) "context" $) }}
+
+Required password params:
+  - validationErrors - String - Required. List of validation strings to be return, if it is empty it won't throw error.
+  - context - Context - Required. Parent context.
+*/}}
+{{- define "common.errors.upgrade.passwords.empty" -}}
+  {{- $validationErrors := join "" .validationErrors -}}
+  {{- if and $validationErrors .context.Release.IsUpgrade -}}
+    {{- $errorString := "\nPASSWORDS ERROR: You must provide your current passwords when upgrading the release." -}}
+    {{- $errorString = print $errorString "\n                 Note that even after reinstallation, old credentials may be needed as they may be kept in persistent volume claims." -}}
+    {{- $errorString = print $errorString "\n                 Further information can be obtained at https://docs.bitnami.com/general/how-to/troubleshoot-helm-chart-issues/#credential-errors-while-upgrading-chart-releases" -}}
+    {{- $errorString = print $errorString "\n%s" -}}
+    {{- printf $errorString $validationErrors | fail -}}
+  {{- end -}}
+{{- end -}}