update the CI (#21) #5

	name: Publish Docker image

	on:
	push:
	tags:
	- '*'

	jobs:
	push_to_registry:
	name: Push Docker image to Docker Hub
	runs-on: ubuntu-latest
	steps:
	- name: checkout
	uses: actions/checkout@v4
	- name: setup the environment
	run: \|
	TAG=${GITHUB_REF#refs/*/}
	REPO="docker.io/ohiosupercomputer"
	echo "LATEST_IMG=$REPO/ood-doc-build:latest" >> $GITHUB_ENV
	echo "VERSIONED_IMG=$REPO/ood-doc-build:$TAG" >> $GITHUB_ENV
	- name: docker build and tag
	run: \|
	docker build -t $LATEST_IMG .
	docker tag $LATEST_IMG $VERSIONED_IMG
	- name: login to dockerhub
	run: docker login -u ${{ secrets.OSC_ROBOT_DOCKERHUB_USER }} -p ${{ secrets.OSC_ROBOT_DOCKERHUB_TOKEN }}
	- name: push images to dockerhub
	run: \|
	docker push $LATEST_IMG
	docker push $VERSIONED_IMG

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