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util: expose otel metrics through grpc and prometheus #4460

Merged
merged 1 commit into from
Dec 12, 2023
Merged

util: expose otel metrics through grpc and prometheus #4460

merged 1 commit into from
Dec 12, 2023

Commits on Dec 12, 2023

  1. util: expose otel metrics through grpc and prometheus 

    This exposes the otel metrics through the environment variables for the
otel collector or through the prometheus `/metrics` endpoint through the
debug address.

This also adds metrics for the grpc endpoints from the opentelemetry
libraries.

For the opentelemetry collector, the metric temporality is delta which
reduces the amount of data that goes over the wire overall. Prometheus
metrics are cumulative because prometheus metrics require that.

Signed-off-by: Jonathan A. Sternberg <jonathan.sternberg@docker.com>
    @jsternberg
    jsternberg committed Dec 12, 2023
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