Merge pull request #12 from BristolComputing/kreczko-rocky9 #47

	name: CI to Docker Hub
	on:
	push:
	branches: [ main ]
	tags: ["v..*"]

	jobs:
	build:
	runs-on: ubuntu-latest
	steps:
	- name: Cache Docker layers
	uses: actions/cache@v2
	with:
	path: /tmp/.buildx-cache
	key: ${{ runner.os }}-buildx-${{ github.sha }}
	restore-keys: \|
	${{ runner.os }}-buildx-

	- name: Check Out Repo
	uses: actions/checkout@v2

	- name: Login to Docker Hub
	uses: docker/login-action@v1
	with:
	username: ${{ secrets.DOCKER_HUB_USERNAME }}
	password: ${{ secrets.DOCKER_HUB_ACCESS_TOKEN }}

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

	- name: Extract version from branch name
	id: extract-version
	run: \|
	VERSION=latest
	if [[ "${{ github.ref }}" =~ ^refs/tags/v([0-9]+\.[0-9]+\.[0-9]+)(-.*)?$ ]]; then
	VERSION=${BASH_REMATCH[1]}
	fi
	echo "RELEASE_VERSION=$VERSION" >> $GITHUB_ENV

	- name: Build and push
	id: docker_build
	uses: docker/build-push-action@v2
	with:
	context: ./
	file: ./Dockerfile
	builder: ${{ steps.buildx.outputs.name }}
	push: true
	tags: ${{ secrets.DOCKER_HUB_USERNAME }}/xrootdse:${{ env.RELEASE_VERSION }}
	cache-from: type=local,src=/tmp/.buildx-cache
	cache-to: type=local,dest=/tmp/.buildx-cache

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

Provide feedback