OCPBUGS-1316: Add missing variable reference to rules

Some of the kubeletconfig rules does not have not contains reference to variable being used in its remediation, this PR adds that reference to those rules. Related BUG: https://issues.redhat.com/browse/OCPBUGS-1316

applications/openshift/kubelet/kubelet_eviction_thresholds_set_hard_imagefs_available/rule.yml

@@ -38,8 +38,10 @@ description: |-
   <p>
   This rule pertains to the <tt>imagefs.available</tt> setting of the <tt>evictionHard</tt>
   section.
+  {{{ kubernetes_variable_instruction(field_name="imagefs.available", variable_name="var_kubelet_evictionhard_imagefs_available") }}}
   </p>
 
+
 rationale: |-
   Garbage collection is important to ensure sufficient resource availability
   and avoiding degraded performance and availability. In the worst case, the

applications/openshift/kubelet/kubelet_eviction_thresholds_set_hard_imagefs_inodesfree/rule.yml

@@ -38,6 +38,7 @@ description: |-
   <p>
   This rule pertains to the <tt>imagefs.inodesFree</tt> setting of the <tt>evictionHard</tt>
   section.
+  {{{ kubernetes_variable_instruction(field_name="imagefs.inodesFree", variable_name="var_kubelet_evictionhard_imagefs_inodesfree") }}}
   </p>
 
 rationale: |-

applications/openshift/kubelet/kubelet_eviction_thresholds_set_hard_memory_available/rule.yml

@@ -38,6 +38,7 @@ description: |-
   <p>
   This rule pertains to the <tt>memory.available</tt> setting of the <tt>evictionHard</tt>
   section.
+  {{{ kubernetes_variable_instruction(field_name="memory.available", variable_name="var_kubelet_evictionhard_memory_available") }}}
   </p>
 
 rationale: |-

applications/openshift/kubelet/kubelet_eviction_thresholds_set_hard_nodefs_available/rule.yml

@@ -38,6 +38,7 @@ description: |-
   <p>
   This rule pertains to the <tt>nodefs.available</tt> setting of the <tt>evictionHard</tt>
   section.
+  {{{ kubernetes_variable_instruction(field_name="nodefs.available", variable_name="var_kubelet_evictionhard_nodefs_available") }}}
   </p>
 
 rationale: |-

applications/openshift/kubelet/kubelet_eviction_thresholds_set_hard_nodefs_inodesfree/rule.yml

@@ -38,6 +38,7 @@ description: |-
   <p>
   This rule pertains to the <tt>nodefs.inodesFree</tt> setting of the <tt>evictionHard</tt>
   section.
+  {{{ kubernetes_variable_instruction(field_name="nodefs.inodesFree", variable_name="var_kubelet_evictionhard_nodefs_inodesfree") }}}
   </p>
 
 rationale: |-

applications/openshift/kubelet/kubelet_eviction_thresholds_set_soft_imagefs_available/rule.yml

@@ -39,6 +39,7 @@ description: |-
   <p>
   This rule pertains to the <tt>imagefs.available</tt> setting of the <tt>evictionSoft</tt>
   section.
+  {{{ kubernetes_variable_instruction(field_name="imagefs.available", variable_name="var_kubelet_evictionsoft_imagefs_available") }}}
   </p>
 
 rationale: |-

applications/openshift/kubelet/kubelet_eviction_thresholds_set_soft_imagefs_inodesfree/rule.yml

@@ -38,6 +38,7 @@ description: |-
   <p>
   This rule pertains to the <tt>imagefs.inodesFree</tt> setting of the <tt>evictionSoft</tt>
   section.
+  {{{ kubernetes_variable_instruction(field_name="imagefs.inodesFree", variable_name="var_kubelet_evictionsoft_imagefs_inodesfree") }}}
   </p>
 
 rationale: |-

applications/openshift/kubelet/kubelet_eviction_thresholds_set_soft_memory_available/rule.yml

@@ -38,6 +38,7 @@ description: |-
   <p>
   This rule pertains to the <tt>memory.available</tt> setting of the <tt>evictionSoft</tt>
   section.
+  {{{ kubernetes_variable_instruction(field_name="memory.available", variable_name="var_kubelet_evictionsoft_memory_available") }}}
   </p>
 
 rationale: |-

applications/openshift/kubelet/kubelet_eviction_thresholds_set_soft_nodefs_available/rule.yml

@@ -38,6 +38,7 @@ description: |-
   <p>
   This rule pertains to the <tt>nodefs.available</tt> setting of the <tt>evictionSoft</tt>
   section.
+  {{{ kubernetes_variable_instruction(field_name="nodefs.available", variable_name="var_kubelet_evictionsoft_nodefs_available") }}}
   </p>
 
 rationale: |-

applications/openshift/kubelet/kubelet_eviction_thresholds_set_soft_nodefs_inodesfree/rule.yml

@@ -38,6 +38,7 @@ description: |-
   <p>
   This rule pertains to the <tt>nodefs.inodesFree</tt> setting of the <tt>evictionSoft</tt>
   section.
+  {{{ kubernetes_variable_instruction(field_name="nodefs.inodesFree", variable_name="var_kubelet_evictionsoft_nodefs_inodesfree") }}}
   </p>
 
 rationale: |-

shared/macros/10-kubernetes.jinja

@@ -176,6 +176,10 @@ spec:
         overwrite: true
 {{%- endmacro -%}}
 
+{{%- macro kubernetes_variable_instruction(field_name='', variable_name='') -%}}
+Remediations for the {{{ field_name }}} field will be set to {{ .{{{ variable_name }}} }} based on variable {{{ variable_name }}}.
+{{%- endmacro -%}}
+
 
 {{#
   Macro which generates Kubernetes remediation in MachineConfig format with