lua: Add counter tracking number of executions #41772
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Commit Message: lua: Add counter tracking number of executions
Additional Description:
This PR adds a new counter stat (
executions) to the Lua filter. This is helpful in the case of multiple distributed envoy instances (e.g. a service mesh like Istio) where users (and even mesh owners) can use this metric to identify whether the intent was correctly propagated to the proxy as well as correctly configured in the filter chain by tracking changes with each traffic passing through the proxy. Also, this, when coupled with the existingerrorscounter, can provide the number of successful executions as well.Risk Level: Low
Testing: Unit tests, integration tests and manual tests
Docs Changes: Updated
lua_filter.rstRelease Notes: Added to
changelogs/current.yamlPlatform Specific Features: N/A