fix: explicit permission in github workflow #113

	name: Build and Publish

	on:
	# run it on push to the default repository branch
	push:
	branches: [master, develop]
	# run it during pull request
	pull_request:
	# Allows you to run this workflow manually from the Actions tab
	workflow_dispatch:

	env:
	REGISTRY: ghcr.io
	IMAGE_NAME: ${{ github.repository }}

	jobs:
	docker:
	name: Build Docker image and push to repositories
	# run only when code is compiling and tests are passing
	runs-on: ubuntu-latest
	permissions:
	contents: read
	packages: write

	# steps to perform in job
	steps:
	- name: Checkout code
	uses: actions/checkout@v2

	# setup Docker buld action
	- name: Set up Docker Buildx
	id: buildx
	uses: docker/setup-buildx-action@v1

	- name: Login to Github Packages
	uses: docker/login-action@v1
	with:
	registry: ${{ env.REGISTRY }}
	username: ${{ github.actor }}
	password: ${{ secrets.GHCR_PAT }}

	- name: Extract metadata (tags, labels) for Docker
	id: meta
	uses: docker/metadata-action@v2
	with:
	images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}

	- name: Build image and push to GitHub Container Registry
	uses: docker/build-push-action@v2
	with:
	# Note: tags has to be all lower-case
	tags: ${{ steps.meta.outputs.tags }}
	# build on feature branches, push only on master
	push: true

	- name: Image digest
	run: echo ${{ steps.docker_build.outputs.digest }}

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