Update Dockerfile to use alpine + ca-certificates #19

	name: Build Docker image

	on:
	push:
	branches:
	- master
	tags:
	- v*

	jobs:
	build:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v3

	- name: Get all git tags
	run: git fetch --prune --unshallow --tags

	- uses: actions/setup-go@v3
	with:
	go-version: '>=1.17.0'

	- name: Run tests
	run: make test

	- uses: sonarsource/sonarqube-scan-action@master
	env:
	SONAR_TOKEN: ${{ secrets.SONAR_TOKEN }}
	SONAR_HOST_URL: ${{ secrets.SONAR_HOST_URL }}

	- uses: sonarsource/sonarqube-quality-gate-action@master
	timeout-minutes: 5
	env:
	SONAR_TOKEN: ${{ secrets.SONAR_TOKEN }}

	- name: Build image
	run: make image

	- name: Sign in to Docker Hub
	run: echo -n ${{secrets.DOCKER_HUB_PASSWORD}} \| docker login -u ${{secrets.DOCKER_HUB_USERNAME}} --password-stdin

	- name: Push image to registry
	run: make publish

	- name: Sign out from Docker Hub
	if: always()
	run: docker logout

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