[stable/graylog] Adding option to define environment variables in raw yaml format (#22007)

Signed-off-by: Rodrigo Valerio <rsvalerio@gmail.com>

stable/graylog/Chart.yaml

@@ -1,7 +1,7 @@
 apiVersion: v1
 name: graylog
 home: https://www.graylog.org
-version: 1.6.2
+version: 1.6.3
 appVersion: 3.1
 description: Graylog is the centralized log management solution built to open standards for capturing, storing, and enabling real-time analysis of terabytes of machine data.
 keywords:

stable/graylog/README.md

@@ -109,6 +109,7 @@ The following table lists the configurable parameters of the Graylog chart and t
 | `graylog.tolerations`                   | Graylog server tolerations                                                                                                                            | `[]`                                  |
 | `graylog.nodeSelector`                  | Graylog server node selector                                                                                                                          | `{}`                                  |
 | `graylog.env`                           | Graylog server env variables                                                                                                                          | `{}`                                  |
+| `graylog.envRaw`                        | Graylog server env variables in raw yaml format                                                                                                       | `{}`                                  |
 | `graylog.privileged`                    | Run as a privileged container                                                                                                        | `false`                                                |
 | `graylog.additionalJavaOpts`            | Graylog service additional `JAVA_OPTS`                                                                                                                | ``                                    |
 | `graylog.service.type`                  | Kubernetes Service type                                                                                                                               | `ClusterIP`                           |

stable/graylog/templates/statefulset.yaml

@@ -120,6 +120,11 @@ spec:
             - name: {{ $key }}
               value: {{ $value | quote }}
             {{- end }}
+            {{- if .Values.graylog.envRaw }}
+            {{- with .Values.graylog.envRaw }}
+                {{- toYaml . | nindent 12 }}
+            {{- end }}
+            {{- end }}
           securityContext:
             privileged: {{ .Values.graylog.privileged }}
           ports:

stable/graylog/values.yaml

@@ -55,6 +55,15 @@ graylog:
   ##
   env: {}
 
+  ## Additional environment variables in raw yaml format
+  ## - name: POD_IP
+  ##   valueFrom:
+  ##     fieldRef:
+  ##       fieldPath: status.podIP
+  ## - name: SERVICE_8000_NAME
+  ##   value: servicename
+  envRaw: {}
+
   ## Run as privileged container
   ##
   privileged: false