Update build workflow #38

	name: 🏗️ Build image on push
	on:
	push:
	branches: ['main']

	concurrency:
	group: ${{ github.workflow }}-${{ github.ref }}
	cancel-in-progress: true

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

	jobs:
	build:
	name: Build
	runs-on: ubuntu-latest
	permissions:
	contents: read
	packages: write
	attestations: write
	id-token: write
	steps:
	- name: 🚚 Get latest code
	uses: actions/checkout@v4

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

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

	- name: Extract metadata (tags, labels) for Docker
	id: meta
	uses: docker/metadata-action@v5
	with:
	images: ${{ env.IMAGE_NAME }}

	- name: Build and publish image
	id: push
	uses: docker/build-push-action@v6
	with:
	context: .
	push: true
	tags: ${{ steps.meta.outputs.tags }}
	labels: ${{ steps.meta.outputs.labels }}
	cache-from: type=gha
	cache-to: type=gha,mode=max

	- name: Generate artifact attestation
	uses: actions/attest-build-provenance@v1
	with:
	subject-name: ${{ env.IMAGE_NAME }}
	subject-digest: ${{ steps.push.outputs.digest }}
	push-to-registry: true

	- name: Delete old packages
	uses: actions/delete-package-versions@v5
	with:
	package-name: 'cornzz/llmlingua-demo'
	package-type: 'docker'
	min-versions-to-keep: 2

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