Add processor config to telegraf (#18558)

stable/telegraf/Chart.yaml

 apiVersion: v1
 name: telegraf
-version: 1.1.8
+version: 1.1.9
 appVersion: 1.12
 deprecated: false
 description: Telegraf is an agent written in Go for collecting, processing, aggregating, and writing metrics.

stable/telegraf/templates/_helpers.tpl

@@ -189,3 +189,95 @@ Create chart name and version as used by the chart label.
     {{ end }}
 {{- end }}
 {{- end -}}
+
+{{- define "processors" -}}
+{{- range $processorIdx, $configObject := . -}}
+    {{- range $processor, $config := . -}}
+
+    [[processors.{{- $processor }}]]
+    {{- if $config -}}
+    {{- $tp := typeOf $config -}}
+    {{- if eq $tp "map[string]interface {}" -}}
+        {{- range $key, $value := $config -}}
+          {{- $tp := typeOf $value -}}
+          {{- if eq $tp "string" }}
+      {{ $key }} = {{ $value | quote }}
+          {{- end }}
+          {{- if eq $tp "float64" }}
+      {{ $key }} = {{ $value | int64 }}
+          {{- end }}
+          {{- if eq $tp "int" }}
+      {{ $key }} = {{ $value | int64 }}
+          {{- end }}
+          {{- if eq $tp "bool" }}
+      {{ $key }} = {{ $value }}
+          {{- end }}
+          {{- if eq $tp "[]interface {}" }}
+      {{ $key }} = [
+              {{- $numOut := len $value }}
+              {{- $numOut := sub $numOut 1 }}
+              {{- range $b, $val := $value }}
+                {{- $i := int64 $b }}
+                {{- $tp := typeOf $val }}
+                {{- if eq $i $numOut }}
+                  {{- if eq $tp "string" }}
+        {{ $val | quote }}
+                  {{- end }}
+                  {{- if eq $tp "float64" }}
+        {{ $val | int64 }}
+                  {{- end }}
+                {{- else }}
+                  {{- if eq $tp "string" }}
+        {{ $val | quote }},
+                  {{- end}}
+                  {{- if eq $tp "float64" }}
+        {{ $val | int64 }},
+                  {{- end }}
+                {{- end }}
+              {{- end }}
+      ]
+          {{- end }}
+          {{- if eq $tp "map[string]interface {}" }}
+      [[processors.{{ $processor }}.{{ $key }}]]
+            {{- range $k, $v := $value }}
+              {{- $tps := typeOf $v }}
+              {{- if eq $tps "string" }}
+        {{ $k }} = {{ $v | quote }}
+              {{- end }}
+              {{- if eq $tps "[]interface {}"}}
+        {{ $k }} = [
+                {{- $numOut := len $value }}
+                {{- $numOut := sub $numOut 1 }}
+                {{- range $b, $val := $v }}
+                  {{- $i := int64 $b }}
+                  {{- if eq $i $numOut }}
+            {{ $val | quote }}
+                  {{- else }}
+            {{ $val | quote }},
+                  {{- end }}
+                {{- end }}
+        ]
+              {{- end }}
+              {{- if eq $tps "map[string]interface {}"}}
+        [processors.{{ $processor }}.{{ $key }}.{{ $k }}]
+                {{- range $foo, $bar := $v }}
+                {{- $tp := typeOf $bar -}}
+                {{- if eq $tp "string" }}
+            {{ $foo }} = {{ $bar | quote }}
+                {{- end }}
+                {{- if eq $tp "int" }}
+            {{ $foo }} = {{ $bar }}
+                {{- end }}
+                {{- if eq $tp "float64" }}
+            {{ $foo }} = {{ int64 $bar }}
+                {{- end }}
+                {{- end }}
+              {{- end }}
+            {{- end }}
+          {{- end }}
+          {{- end }}
+    {{- end }}
+    {{- end }}
+    {{ end }}
+{{- end }}
+{{- end -}}

stable/telegraf/templates/configmap.yaml

@@ -11,5 +11,6 @@ data:
   telegraf.conf: |+
     {{ template "global_tags" .Values.config.global_tags }}
     {{ template "agent" .Values.config.agent }}
+    {{ template "processors" .Values.config.processors }}
     {{ template "outputs" .Values.config.outputs }}
     {{ template "inputs" .Values.config.inputs -}}

stable/telegraf/values.yaml

@@ -48,6 +48,15 @@ config:
     logfile: ""
     hostname: "$HOSTNAME"
     omit_hostname: false
+  processors:
+    - enum:
+        mapping:
+          field: "status"
+          dest: "status_code"
+          value_mappings:
+            healthy: 1
+            problem: 2
+            critical: 3
   outputs:
     - influxdb:
         urls: