* Add apdex function to OAL

* Add empty line

* Setup config watcher

* Add identifier type to function parameter

* Add config test

* Update score algorithm

* Replace responseCode with status

* Add comments about apdex score algorithm

* Add docs

* Add e2e test case

* Update test case

* Fix disptch class generating error

* Update value name of apdex metric

* Tuning threshold

* Fix single tolerated point bug

* Support namespace in Nacos cluster/configuration

* Give Nacos default namespace as per config/registry

* Support dynamically configure alarm settings

* Update documentation

* Provide Consul dynamic configuration center implementation

* Add more unit tests

* Fix unit test

* Add more unit tests and remove unused file

* Remove redundant doc

* Support Gateway without agent

* configration-zookeeper

* Provide Apollo dynamic configuration center implementation. fixes #2825

* Provide Nacos dynamic configuration center implementation. fixes #2816

* Add unit tests

* Sync

* Replace pull-mode with watch-mode

* Fix ci

* Unify dependency management

* Add integration tests

* Revert unexpected changes

* Add more test cases

* Revert unexpected changes

* Suppress IDE warning

* Correctify volumes position

* Add license header

* Remove Chinese comments

* Sync

* Sync

* Sync

* Sync

* Revert unexpected changes

* Rebase on refactored code and add missing config to docker

* Fix unit test

* Revert unnecessary changes

* Implement the base of config API module.

* Finish configuration module codebases w/o tests, revert some changes.

* Finish mock tests.

* Add new gRPC service for configuration.

* Make gRPC configuration sync provider works.

* Add database slow statement dynamic setting.

* Finish the dynamic configuration service.

* Fix version.