check #305

	# `name` value will appear "as is" in the badge.
	# See https://docs.github.com/en/actions/configuring-and-managing-workflows/configuring-a-workflow#adding-a-workflow-status-badge-to-your-repository
	# yamllint --format github .github/workflows/release.yaml
	---
	name: "check"

	on:
	schedule:
	- cron: '0 0 * * ' # https://crontab.guru/#0_0___

	# Allows triggering the workflow manually in github actions page.
	workflow_dispatch:

	defaults:
	run: # use bash for all operating systems unless overridden
	shell: bash

	jobs:
	check:
	name: "Check Envoy® Releases"
	runs-on: ubuntu-20.04 # Hard-coding an LTS means maintenance, but only once each 2 years!
	steps:
	- name: "Checkout"
	uses: actions/checkout@v3
	- name: "Check Envoy releases"
	run: \| # we set 1.18.1 as the lowest version to check because before that, some of the versions did not have published images.
	lowest_version_to_check=1.18.1
	./bin/check_releases.sh envoyproxy/envoy tetratelabs/archive-envoy ${lowest_version_to_check}
	env: # Set the gh's GH_TOKEN. See: https://cli.github.com/manual/gh_help_environment.
	GH_TOKEN: ${{ secrets.GH_TOKEN }}

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