Image update check #201

	# FILE LOCATION IN REPOSITORY:
	#
	# .github/workflows/auto-build-on-base-image-change.yml
	#

	name: Regular base image update check
	on:
	schedule:
	- cron: "0 23 * * *"
	workflow_dispatch:
	inputs:
	force_build:
	description: 'Force docker image build.'
	default: false
	required: false
	type: boolean

	jobs:
	build:
	runs-on: ubuntu-latest
	steps:

	# Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
	- uses: actions/checkout@v3

	- name: Docker Image Update Checker
	id: baseupdatecheck
	uses: lucacome/[email protected]
	with:
	base-image: pihole/pihole:latest
	image: phynias/pihole-regex # update for your image

	# only execute subsequent steps if an update is actually NEEDED.
	# unfortunately we need to add an if-condition to all steps now
	# because a clean exit can't be triggered within a job it seems
	# (a cancellation is NOT the same and triggers a failure email)
	# see also https://github.com/actions/runner/issues/662
	- name: Login to DockerHub
	uses: docker/login-action@v3
	with:
	username: ${{ secrets.DOCKERHUB_USERNAME }}
	password: ${{ secrets.DOCKERHUB_TOKEN }}
	if: ${{ steps.baseupdatecheck.outputs.needs-updating == 'true' \|\| github.event.inputs.force_build == 'true' }}

	- name: Build and push Docker images
	uses: docker/build-push-action@v5
	with:
	context: "${{ github.workspace }}"
	push: true
	tags: phynias/pihole-regex:latest # update for your image
	if: ${{ steps.baseupdatecheck.outputs.needs-updating == 'true' \|\| github.event.inputs.force_build == 'true' }}

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