Title #5

	# GitHub Actions workflow for building and pushing Docker image to GitHub Container Registry
	name: Build and Push Docker image

	on:
	push:
	branches: [ main, master ]
	pull_request:
	branches: [ main, master ]

	jobs:
	build:
	runs-on: ubuntu-latest
	permissions:
	contents: read
	packages: write

	steps:
	- name: Checkout repository
	uses: actions/checkout@v4

	- name: Set up Docker Buildx
	uses: docker/setup-buildx-action@v3

	- name: Log in to GitHub Container Registry
	uses: docker/login-action@v3
	with:
	registry: ghcr.io
	username: ${{ github.actor }}
	password: ${{ secrets.GITHUB_TOKEN }}

	- name: Set lower case owner name
	id: set_owner_lc
	run: echo "owner_lc=${OWNER,,}" >> $GITHUB_OUTPUT
	env:
	OWNER: ${{ github.repository_owner }}

	- name: Build and push Docker image
	uses: docker/build-push-action@v5
	with:
	context: .
	file: ./Dockerfile
	push: true
	tags: ghcr.io/${{ steps.set_owner_lc.outputs.owner_lc }}/jekyll-modified:latest

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