Trivy Periodic Image Scan #99

	---
	#
	# 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:
	lower-case:
	runs-on: ubuntu-latest
	steps:
	- name: Ensure image name is lower case
	id: image_name
	uses: vishalmamidi/lowercase-action@v1
	with:
	string: ghcr.io/${{ github.repository }}:main # if rebuilding for a new tag does not also rebuild 'main', then change this to scan the latest tag
	outputs:
	lowercase: ${{ steps.image_name.outputs.lowercase }}

	periodic-scan:
	needs: lower-case
	uses: "./.github/workflows/trivy.yml"
	with:
	SOURCE_TYPE: image
	IMAGE_NAME: ${{ needs.lower-case.outputs.lowercase }}

	# If scan failed, rebuild the image
	update-image:
	needs: periodic-scan
	runs-on: ubuntu-latest
	if: ${{needs.periodic-scan.outputs.trivy_conclusion == 'failure' }}
	# tag the repo to trigger a new build
	steps:
	- name: Bump version and push tag
	id: tag_version
	uses: mathieudutour/[email protected]
	with:
	github_token: ${{ secrets.GITHUB_TOKEN }}

	...

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