Trivy Periodic Image Scan #56

	---
	#
	# This workflow scans the published container images
	# for new vulnerabilities daily, publishing findings.
	# Findings will be associated with the 'main' branch
	# of the repo' in the GitHub Security tab.
	#
	name: Trivy Periodic Image Scan

	on:
	schedule:
	# run daily
	- cron: "0 0 * * *"

	jobs:
	to-lower-case:
	runs-on: ubuntu-latest
	steps:
	- name: Ensure image name is lower case
	id: repo_name
	uses: vishalmamidi/lowercase-action@v1
	with:
	string: ghcr.io/${{ github.repository }}:main
	outputs:
	lowercase-repo-name: ${{ steps.repo_name.outputs.lowercase }}

	periodic-scan:
	needs: to-lower-case
	uses: "./.github/workflows/trivy.yml"
	with:
	SOURCE_TYPE: image
	# While GitHub repo's can be mixed (upper and lower) case,
	# Docker images can only be lower case
	IMAGE_NAME: ${{ needs.to-lower-case.outputs.lowercase-repo-name }}
	...

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