Evaluate fluent-operator to deploy collector/aggregator log architecture

[ricsanfre]

Scope

Evaluate fluent-operator to deploy collector/aggregator log architecture based on fluent-bit and fluentd

Fluent Operator includes CRDs and controllers for both Fluent Bit and Fluentd which allows to control logs data pipelines in 3 modes:

1. Fluent Bit only mode: Deploy just Fluentbit as collection and distribution layer.
2. Fluent Bit + Fluentd mode: Deploy Fluentbit as collector and Fluentd as distribution layer to perform more complicated processing of logs.
3. Fluentd only mode: Deploy just Fluentd as collection and distribution layer

Moreover, Fluentd helm chart does not seem to be maintained anymore.

References

• Fluent Operator Github repo
• Fluent Operator helm chart