Increase (or decrease) the number of indexes that are generated

If Elasticsearch indexes (by default 1 logstash-XX index per day) are too large, one can follow this linux string time formatting logic to increase (or decrease) the number of indexes that are generated: strftime

For example, inside the outputs configuration values section you will need to define Logstash_DateFormat. For example to generate a new index for each hour of the day the configuration would be Logstash_DateFormat %Y.%m.%d-%k while 2 indexes per day would be Logstash_DateFormat %Y.%m.%d-%P.

Below is the elasticsearch output specific information for fluentbit: es output plugin

Example

  config:
    outputs: |
        [OUTPUT]
            Name es
            Match kube.*
            # -- Pointing to Elasticsearch service installed by ECK, based off EK name "logging-ek", update elasticsearch.name above to update.
            Host {{ .Values.elasticsearch.name }}-es-http
            HTTP_User elastic
            HTTP_Passwd ${FLUENT_ELASTICSEARCH_PASSWORD}
            Logstash_Format On
    # generate a new index for each hour of the day the configuration
            Logstash_DateFormat %Y.%m.%d-%k  
            Retry_Limit False
            Replace_Dots On
            tls On
            tls.verify On
            tls.ca_file /etc/elasticsearch/certs/ca.crt
            storage.total_limit_size {{ .Values.storage.total_limit_size }}