No data moving into elasticsearch

Jack,

Do you have the xpack plugin installed for logstash?
I noted the following are missing from you logstash.yml:

xpack.monitoring.elasticsearch.url: "http://es-prod-node:9200"
xpack.monitoring.elasticsearch.username: "logstash_system"
xpack.monitoring.elasticsearch.password: "changeme"

It would need these to report.

Thank you for the suggestion, I've resolved the issue already.

Thanks though!