Add go build caching #5

	name: CI
	on:
	workflow_dispatch:
	push:
	branches:
	- main
	jobs:
	build-n-deploy:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4

	- name: Setup Go
	uses: actions/setup-go@v4
	with:
	go-version: 1.21.x
	cache: false

	- name: Get Go cached paths
	run: \|
	echo "cache=$(go env GOCACHE)" >> $GITHUB_ENV
	echo "modcache=$(go env GOMODCACHE)" >> $GITHUB_ENV

	- name: Set up dependencies cache
	uses: actions/cache@v3
	with:
	path: \|
	${{ env.cache }}
	key: setup-go-deps-${{ runner.os }}-go-${{ hashFiles('go.sum go.mod') }}

	- name: Set up intermediate built files cache
	uses: actions/cache@v3
	with:
	path: \|
	${{ env.modcache }}
	key: setup-go-build-${{ env.GOOS }}-${{ env.GOARCH }}-${{ runner.os }}-go-${{ hashFiles('*/.go /tmp/env') }}
	restore-keys: \|
	setup-go-build-${{ env.GOOS }}-${{ env.GOARCH }}

	- name: Build Linux binary
	run: GOOS=linux GOARCH=amd64 go build

	- name: Build Docker image
	run: docker build -t ${{ secrets.DOCKER_USERNAME }}/az-appservice .

	- name: Login to Docker Hub
	run: docker login -u ${{ secrets.DOCKER_USERNAME }} -p ${{ secrets.DOCKERHUB_TOKEN }}

	- name: Docker push
	run: docker push ${{ secrets.DOCKER_USERNAME }}/az-appservice

	- name: Login to Azure with Publishing Profile
	run: \|
	mkdir ~/.azure
	echo "${{ secrets.AZ_PROFILE }}" > ~/.azure/azure.pubxml

	- name: Deploy to Azure Web App
	run: az webapp restart --name akv-demo-go --resource-group akv-demo-1

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