From 3eda3f122859bc5ce8e95b1d279addc742727161 Mon Sep 17 00:00:00 2001
From: Jonas Wielage <jonas.wielage@sonarsource.com>
Date: Thu, 5 Dec 2024 17:33:34 +0100
Subject: [PATCH] Modify rule S117: Add exception to kubernetes language

---
 rules/S117/kubernetes/rule.adoc | 21 +++++++++++++++++++--
 1 file changed, 19 insertions(+), 2 deletions(-)

diff --git a/rules/S117/kubernetes/rule.adoc b/rules/S117/kubernetes/rule.adoc
index ef29d9a8dbe..4e8ae2db268 100644
--- a/rules/S117/kubernetes/rule.adoc
+++ b/rules/S117/kubernetes/rule.adoc
@@ -2,12 +2,24 @@
 :identifier: local variable and function parameter
 :identifier_plural: local variables and function parameters
 :identifier_or: local variable or function parameter
-:regex: ^[a-z][a-zA-Z0-9]*$
+:regex: ^\$[a-z][a-zA-Z0-9]*$
 
-include::../rule.adoc[]
+
+include::../introduction.adoc[]
+
+include::../why-is-this-an-issue.adoc[]
+
+=== Exceptions
+
+The rule does not raise an issue on the usages of the blank identifier `$_` or the root context `$`.
+
+include::../what-is-the-potential-impact.adoc[]
+
+include::../how-to-fix-it.adoc[]
 
 As a default, we suggest using the camelCase naming convention, as this is widely adopted for variables in Helm.
 
+
 === Code examples
 
 ==== Noncompliant code example
@@ -51,6 +63,11 @@ data:
   {{ $keyC }}: {{ $valC | quote }}
   {{- end }}
 ----
+
+[source,text]
+----
+{{- $_ := set .Values.ingress.annotations "kubernetes.io/ingress.class" .Values.ingress.className -}}
+----
 == Resources
 
 === Documentation