refactor: use goroutine on send mail function. #14

	name: cd

	on:
	push:
	branches:
	- main

	concurrency:
	group: cd
	cancel-in-progress: true

	jobs:
	deploy_api_server:
	name: Push Docker image to Docker Hub, Deploy API Server.
	runs-on: ubuntu-latest

	steps:
	- name: Check out the repo
	uses: actions/checkout@v3
	with:
	ref: ${{ github.ref_name }}

	- name: Set short git commit SHA
	id: vars
	run: \|
	calculatedSha=$(git rev-parse --short ${{ github.sha }})
	echo "::set-output name=short_sha::$calculatedSha"

	- name: Confirm git commit SHA output
	run: echo ${{ steps.vars.outputs.short_sha }}

	- name: Login to Docker Hub
	uses: docker/login-action@v2
	with:
	username: ${{ secrets.DOCKERHUB_USERNAME }}
	password: ${{ secrets.DOCKERHUB_TOKEN }}

	- name: Build and push
	uses: docker/build-push-action@v4
	with:
	context: .
	file: ./Dockerfile
	push: true
	tags: ${{ secrets.DOCKERHUB_USERNAME }}/send-server:${{ steps.vars.outputs.short_sha }}

	- name: Deploy to K8S
	uses: appleboy/[email protected]
	with:
	host: ${{ secrets.HOST }}
	username: ${{ secrets.USERNAME }}
	password: ${{ secrets.PASSWORD }}
	port: ${{ secrets.PORT }}
	script: kubectl -n ${{ secrets.NAMESPACE }} set image deploy/send-server send-server=${{ secrets.DOCKERHUB_USERNAME }}/send-server:${{ steps.vars.outputs.short_sha }}

Provide feedback