Build Ubuntu18 Image #6

	name: Build Ubuntu18 Image
	on:
	workflow_dispatch:

	defaults:
	run:
	shell: bash

	env:
	REGISTRY: ghcr.io
	IMAGE_NAME: baconpaul/sst-dockerimages/ubuntu18_cmake

	jobs:
	build_image:
	permissions:
	id-token: write
	contents: read
	attestations: write
	runs-on: ubuntu-latest
	steps:
	- name: Checkout code
	uses: actions/checkout@v4

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

	- name: Login to GHCR.io
	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: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
	github-token: ${{ secrets.GITHUB_TOKEN }}

	- name: Build and push
	uses: docker/build-push-action@v6
	with:
	push: true
	file: ubuntu-18-upgrade-cmake/Dockerfile
	tags: ${{ steps.meta.outputs.tags }}
	labels: ${{ steps.meta.outputs.labels }}

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

Provide feedback