[Q&A] Apply fluentd configuration depending on environment variable

[straurob]

What is a problem?

Given the following example configuration for fluentd, how could I enable or disable the configuration for Elasticsearch based on an environment variable ENABLE_ELASTICSEARCH?

fluentd will be started in a Docker container, so maybe a custom script could help? Or are there any mechanisms built into fluentd which I could use? The documentation mentions "Embedding Ruby Code" but this seems to work only for configuration values?

<match mytag>
    @type copy
    copy_mode deep
    <store>
        @type relabel
        @label @OPENSEARCH 
    </store>
    <store>
        @type relabel
        @label @ELASTICSEARCH 
    </store>
</match>

<label @OPENSEARCH>
   @include outputs/fluent-opensearch.conf 
</label>

<label @ELASTICSEARCH>
   @include outputs/fluent-elasticsearch.conf 
</label>

Describe the configuration of Fluentd

No response

Describe the logs of Fluentd

No response

Environment

No response