optimize default action of route envoyfilter #985
Merged
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Ⅰ. Describe what this PR did
Per-route EnvoyFilters can significantly impact the speed at which the control plane pushes RDS updates.
Ⅱ. Does this pull request fix one issue?
Ⅲ. Why don't you add test cases (unit test/integration test)?
Ⅳ. Describe how to verify it
Ⅴ. Special notes for reviews