[stable/fluent-bit] add support for affinity (#10942)

Signed-off-by: David J. M. Karlsen <david@davidkarlsen.com>

stable/fluent-bit/Chart.yaml

@@ -1,5 +1,5 @@
 name: fluent-bit
-version: 1.3.3
+version: 1.4.0
 appVersion: 1.0.3
 description: Fast and Lightweight Log/Data Forwarder for Linux, BSD and OSX
 keywords:

stable/fluent-bit/README.md

@@ -113,6 +113,7 @@ The following table lists the configurable parameters of the Fluent-Bit chart an
 | `dnsPolicy`                        | Specifies the dnsPolicy to use             | `ClusterFirst`                                    |
 | `tolerations`                      | Optional daemonset tolerations             | `NULL`                                            |
 | `nodeSelector`                     | Node labels for fluent-bit pod assignment  | `NULL`                                            |
+| `affinity`                         | Expressions for affinity                   | `NULL`                                            |
 | `metrics.enabled`                  | Specifies whether a service for metrics should be exposed | `false`                            |
 | `metrics.service.annotations`      | Optional metrics service annotations       | `NULL`                                            |
 | `metrics.service.port`             | Port on where metrics should be exposed    | `2020`                                            |

stable/fluent-bit/templates/daemonset.yaml

@@ -64,7 +64,7 @@ spec:
 {{- else }}
         - name: config
           mountPath: /fluent-bit/etc/fluent-bit.conf
-          subPath: fluent-bit.conf     
+          subPath: fluent-bit.conf
         - name: config
           mountPath: /fluent-bit/etc/fluent-bit-service.conf
           subPath: fluent-bit-service.conf
@@ -77,7 +77,7 @@ spec:
         - name: config
           mountPath: /fluent-bit/etc/fluent-bit-output.conf
           subPath: fluent-bit-output.conf
-          
+
 {{- if .Values.parsers.enabled }}
         - name: config
           mountPath: /fluent-bit/etc/parsers_custom.conf
@@ -106,6 +106,10 @@ spec:
       nodeSelector:
 {{ toYaml .Values.nodeSelector | indent 8 }}
     {{- end }}
+      {{ if .Values.affinity }}
+      affinity:
+{{ toYaml .Values.affinity | indent 8 }}
+      {{- end }}
     {{- if .Values.tolerations }}
       tolerations:
 {{ toYaml .Values.tolerations | indent 8 }}

stable/fluent-bit/values.yaml

@@ -176,6 +176,7 @@ tolerations: []
 ## Ref: https://kubernetes.io/docs/user-guide/node-selection/
 ##
 nodeSelector: {}
+affinity: {}
 
 input:
   tail: