I have a software running inside a Docker container managed by Kubernetes.

I want to send some metrics data in the simplest possible way to a DataDog service. I only got an IP address and a UDP port 8125 from the system admins.

I have no access to the server at the given IP address. As far as I understood the documentation, if I send a UDP packet with contents like:

metric_name:1|c\n

to the given IP address and UDP port, it should show up in DataDog.

On the DataDog user interface I can see that DataDog monitors the Docker container (for example I can see a spike in the docker.net.bytes_sent chart when I send the above mentioned UDP packets), but I can't find my metric_name metric anywhere.

There's no DataDog agent inside the container. Do I need something else? Register something in DataDog?