Update Elastic release #146

	name: Update Elastic release

	on:
	schedule:
	- cron: '0 0 * * 0' # At 00:00 every Sunday

	jobs:

	check-and-update:
	name: Check and update Elastic release
	runs-on: ubuntu-latest

	steps:
	- uses: actions/checkout@v2

	- name: Get latest release version
	uses: octokit/[email protected]
	id: get_latest_release
	with:
	route: GET /repos/:repository/releases/latest
	repository: elastic/elasticsearch
	env:
	GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

	- name: Update stack version
	run: \|
	source .env
	cur_ver="$ELK_VERSION"
	new_ver=${{ fromJson(steps.get_latest_release.outputs.data).tag_name }}

	# Escape dot characters so sed interprets them as literal dots
	cur_ver="$(echo $cur_ver \| sed 's/\./\\./g')"
	# Trim leading 'v' in semantic version
	new_ver="${new_ver:1}"

	for f in .env docker-stack.yml README.md; do
	sed -i "s/${cur_ver}/${new_ver}/g" "$f"
	done

	- name: Send pull request to update to new version
	uses: peter-evans/create-pull-request@v3
	with:
	commit-message: Update to ${{ fromJson(steps.get_latest_release.outputs.data).tag_name }}
	title: Update to ${{ fromJson(steps.get_latest_release.outputs.data).tag_name }}
	delete-branch: true

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