Support configuration of multiple replicas for Rancher-logging chart components such as fluentd

[petertang2012]

What kind of request is this (question/bug/enhancement/feature request):
enhancement

Steps to reproduce (least amount of steps as possible):
Install Rancher-logging chart and look at its values.yaml template.

Result:
Values.yaml from Rancher-logging chart does not provide option to configure multiple replicas for logging sub components such as fluentd.

Expected Result:
It would be great if we can adjust number of replicas for fluentd so that we can bring more resiliency.

Other details that may be helpful:
Neither the released stable version of Rancher logging nor the latest version on dev-v2.5 branch support this config.

Environment information

• Rancher version (rancher/rancher/rancher/server image tag or shown bottom left in the UI): 2.5.8 with logging chart at 3.9.400 from dev-v2.5 branch
• Installation option (single install/HA): HA

[paynejacob]

This is already possible with fluentd.replicas

[maxisam]

@paynejacob It doesn't work

fluentd:
  livenessProbe:
    initialDelaySeconds: 30
    periodSeconds: 15
    tcpSocket:
      port: 24240
  resources: {}
  replicas: 2

rancher-logging:3.9.400
rancher 2.5.8
k8s: v1.19.9

[paynejacob]

@maxisam my mistake this option will be added with v2.6.0 I will advocate for getting this back ported to v2.5.x

[maxisam]

@paynejacob Thank you! It has been a while someone response to my issues.