To use TLS encryption in your logging infrastructure, you have to configure encryption:

  • for the log collection part of your logging pipeline (between FLuent-bit and Fluentd), and
  • for the output plugin (between Fluentd and the output backend).

For configuring the output, see the documentation of the output plugin you want to use at Outputs.

For Fluentd and Fluent-bit, you can configure encryption in the logging resource using the following parameters:

Name Type Default Description
enabled bool “Yes” Enable TLS encryption
secretName string "” Kubernetes secret that contains: tls.crt, tls.key, ca.crt
sharedKey string "” Shared secret for fluentd authentication

For example:

apiVersion: logging.banzaicloud.io/v1beta1
kind: Logging
metadata:
  name: default-logging-tls
spec:
  fluentd:
    tls:
      enabled: true
      secretName: fluentd-tls
      sharedKey: example-secret
  fluentbit:
    tls:
      enabled: true
      secretName: fluentbit-tls
      sharedKey: example-secret
  controlNamespace: logging

For other parameters of the logging resource, see LoggingSpec.