Milas Bowman 3f6822e196 metrics: add debug implementation ...

Refactor the metrics client slightly to add the concept of a
"reporter" that actually sends the metrics.

The primary implementation is HTTP-based as before, but a key
difference now is that there's another variant that writes to
a file for simplified debugging. This is activated by setting
the `DOCKER_METRICS_DEBUG_LOG` environment variable to a file
path to write events to as JSON lines.

Signed-off-by: Milas Bowman <milas.bowman@docker.com>

2023-02-02 09:20:32 -05:00

1.5 KiB

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