When creating a monitoringStack object there's an option to enable to OTLP Http receiver, which injects the following into the object definition

spec:
  prometheusConfig:
    enableOtlpHttpReceiver: true

However, after Prometheus has come up, attempts to perform a HTTP post to the OTLP endpoint (/api/v1/otlp/v1/metrics) will result in a 404 with the response body:

otlp write receiver needs to be enabled with --web.enable-otlp-receiver

To recreate:

• Install COO (1.2.0)
• Create a new MonitoringStack Object
  • Enable the OTLP HTTP Receiver under Prometheus Config
• Create a route to the Prometheus instance
• Attempt to HTTP Post to the OLTP ingester (<prometheus-route>/api/v1/oltp/v1/metrics