I was curious if Stackdriver metrics are only available via the API or is there a way to send them through Pub/Sub? I'm currently not seeing any of the metrics listed here for Compute Engine in my Pub/Sub output.
I did create a sink for all gce vm instances to export from Stackdriver logging in Pub/Sub and I'm not seeing any of them.
There are a few different types of signals that Stackdriver organizes--metrics, logs, traces, errors, plus derived signals like incidents or error groups. Logs can be exported via Pub/Sub using sinks. Metrics, traces, and errors can only be pulled via the API today.