scheduled build & push of latest version #120

	name: scheduled build & push of latest version

	on:
	schedule:
	- cron: '0 3 * * 0'

	jobs:
	build:
	runs-on: ubuntu-latest
	name: build and publish Docker image
	steps:
	- name: checkout code to list tags
	uses: actions/checkout@v3
	with:
	fetch-depth: 0
	- name: Set up QEMU
	uses: docker/setup-qemu-action@v3
	with:
	platforms: '386,amd64,arm64,arm'
	- name: Set up Docker Buildx
	uses: docker/setup-buildx-action@v2
	- name: set latest tag var
	id: latestTag
	run: echo ::set-output name=tag::$(git tag -l 'v*' --sort=taggerdate \| tail -n 1)
	- name: checkout latest tag
	uses: actions/checkout@v3
	with:
	ref: ${{ steps.latestTag.outputs.tag }}
	- name: Login to DockerHub
	uses: docker/login-action@v2
	with:
	username: ${{ secrets.DOCKER_USERNAME }}
	password: ${{ secrets.DOCKER_PASSWORD }}
	- name: build and push docker images
	uses: docker/build-push-action@v5
	with:
	push: true
	tags: whefter/cron:latest,whefter/cron:${{ steps.latestTag.outputs.tag }}
	platforms: linux/amd64,linux/arm64/v8,linux/arm/v6,linux/arm/v7,linux/386

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