[grafana-sampling] upgrade to grafana alloy #3273
Merged
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This PR upgrades the tail sampling helm chart to use Grafana Alloy. This introduces breaking changes. See the README.md file.
In addition, it introduces a
metricsGeneration.legacy
configuration option set totrue
by default. In future releases, this will default tofalse
. Using legacy metric names will align the spanmetrics generated by theotelcol.spanmetrics.connector
component to match the metric names generated by the Tempo metrics generator. SettingmetricsGeneration.legacy
set tofalse
will use the default metric names. See https://grafana.com/docs/agent/latest/flow/reference/components/otelcol.connector.spanmetrics/#otelcolconnectorspanmetrics for more info.