SigNoz is an open-source APM. It helps developers monitor their applications & troubleshoot problems, an open-source alternative to DataDog, NewRelic, etc.

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follow the steps in instrumentation docs for your nodejs applications hosted in 1st docker host

this shall send application data to 2nd docker host

`OTEL_EXPORTER_OTLP_SPAN_ENDPOINT="http://&lt;IP of SigNoz Backend&gt;:55681/v1/trace" LS_SERVICE_NAME=&lt;service name&gt; npm start`
the IP should be of 2nd dokcer host where signoz is installed