* chore: reverse the order of stopping services
* chore: reverse the order of stopping services
* chore: reorg imports, format code
* chore: format code, and refactor
* feat: change MaxRetries default to 0, disable retry
* implement k8s service discovery
* simplify code
* use default namespace if not provided
* disable codecov bot comment
* ignore adhoc dir
* simplify building target in NewClient
* reformat code
* Fix filepath (#990)
* format code, and reorg imports (#991)
* add more unit test
Co-authored-by: anqiansong <anqiansong@gmail.com>