Be able to adjust mem_buf_limit (#8976)

* Be able to adjust mem_buf_limit

Signed-off-by: Naseem Ullah <naseemkullah@gmail.com>

* Update Chart.yaml

Signed-off-by: Reinhard Nägele <unguiculus@gmail.com>

stable/fluent-bit/Chart.yaml

@@ -1,5 +1,5 @@
 name: fluent-bit
-version: 0.15.1
+version: 0.16.0
 appVersion: 0.14.4
 description: Fast and Lightweight Log/Data Forwarder for Linux, BSD and OSX
 keywords:

stable/fluent-bit/README.md

@@ -91,6 +91,7 @@ The following table lists the configurable parameters of the Fluent-Bit chart an
 | `image.fluent_bit.tag`             | Image tag                                  | `0.14.4`                                          |
 | `image.pullPolicy`                 | Image pull policy                          | `Always`                                          |
 | `image.pullSecrets`                | Specify image pull secrets                 | `nil`                                             |
+| `input.tail.memBufLimit`           | Specify Mem_Buf_Limit in tail input        | `5MB`                                             |
 | `rbac.create`                      | Specifies whether RBAC resources should be created.   | `true`                                 |
 | `serviceAccount.create`            | Specifies whether a ServiceAccount should be created. | `true`                                 |
 | `serviceAccount.name`              | The name of the ServiceAccount to use.     | `NULL`                                            |

stable/fluent-bit/templates/config.yaml

@@ -30,7 +30,7 @@ data:
         Parser           docker
         Tag              {{ .Values.filter.kubeTag }}.*
         Refresh_Interval 5
-        Mem_Buf_Limit    5MB
+        Mem_Buf_Limit    {{ .Values.input.tail.memBufLimit }}
         Skip_Long_Lines  On
 {{- if .Values.trackOffsets }}
         DB               /tail-db/tail-containers-state.db

stable/fluent-bit/values.yaml

@@ -135,6 +135,10 @@ tolerations: []
 ##
 nodeSelector: {}
 
+input:
+  tail:
+    memBufLimit: 5MB
+
 filter:
   kubeURL: https://kubernetes.default.svc:443
   kubeCAFile: /var/run/secrets/kubernetes.io/serviceaccount/ca.crt