feat: graceful shutdown when leader lost #18

	name: lint
	on: [pull_request]

	jobs:
	golint:
	runs-on: ubuntu-20.04
	steps:
	- uses: actions/checkout@v3

	- name: setup golang from container image
	run: \|
	rm -rf /usr/local/go
	docker run --rm -v /usr/local:/sys_usr_local golang:1.20 cp -r /usr/local/go /sys_usr_local/
	echo "PATH=/usr/local/go/bin:${PATH}" >> $GITHUB_ENV

	- uses: golangci/golangci-lint-action@v3
	with:
	version: v1.56
	skip-pkg-cache: true
	skip-build-cache: true # skip cache because of flaky behaviors

	generate-check:
	runs-on: ubuntu-20.04
	steps:
	- uses: actions/checkout@v3

	- name: make docker-generate
	run: sudo make docker-generate

	- name: check if code changes
	run: sudo sh -c "git add -A && git diff HEAD --exit-code"

	- name: show message if failed
	if: ${{ failure() }}
	run: echo "::error::Please run \"make generate\" or \"make docker-generate\" before commit."

	commitlint:
	runs-on: ubuntu-20.04
	steps:
	- uses: actions/checkout@v3
	with:
	fetch-depth: 0
	- uses: wagoid/commitlint-github-action@v4
	with:
	configFile: .commitlintrc.json

Provide feedback