add samples_last_modified to instance; use it in worker; #20

	name: tagged release

	on:
	push:
	tags:
	- "v..*"

	env:
	IMAGE_NAME_TF: "koi-core-tf"

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

	- name: Set up Python 3.8
	uses: actions/setup-python@v4
	with:
	python-version: 3.8

	- name: "install dependencies"
	run: pip install build

	- name: "build wheel and source distribution"
	run: python -m build

	- name: "build docker image"
	run: docker build . --file cpu-tf.Dockerfile --tag $IMAGE_NAME_TF --label "runnumber=${GITHUB_RUN_ID}"

	- name: publish the package as Release v..*
	uses: softprops/action-gh-release@v1
	with:
	name: "Release ${{ github.ref_name }}"
	body_path: CHANGELOG.md
	generate_release_notes: false
	files: \|
	dist/koi_core-*.whl
	dist/koi-core-*.tar.gz

	- name: Log in to registry
	run: echo "${{ secrets.GITHUB_TOKEN }}" \| docker login ghcr.io -u $ --password-stdin

	- name: "publish docker image"
	run: \|
	IMAGE_ID=ghcr.io/${{ github.repository_owner }}/$IMAGE_NAME_TF

	# Change all uppercase to lowercase
	IMAGE_ID=$(echo $IMAGE_ID \| tr '[A-Z]' '[a-z]')

	# Strip git ref prefix from version
	VERSION=$(echo "${{ github.ref }}" \| sed -e 's,./$.$,\1,')

	# Strip "v" prefix from tag name
	[[ "${{ github.ref }}" == "refs/tags/"* ]] && VERSION=$(echo $VERSION \| sed -e 's/^v//')

	echo IMAGE_ID=$IMAGE_ID
	echo VERSION=$VERSION
	docker tag $IMAGE_NAME_TF $IMAGE_ID:$VERSION
	docker push $IMAGE_ID:$VERSION

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