Add github-action PR open/closer #5072

	name: CI
	on:
	push: {}
	pull_request: {}
	schedule:
	- cron: "0 12 * * 1" # Every Monday at 12:00 UTC

	env:
	AWS_ACCESS_KEY_ID: AKIA46X5W6CZEAQSMRH7

	jobs:
	rustfmt:
	name: Rustfmt
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@master
	- name: Install Rust
	run: rustup update stable && rustup default stable && rustup component add rustfmt
	- run: cargo fmt --all --check

	ci:
	name: CI
	runs-on: ubuntu-latest
	steps:
	- name: Checkout the source code
	uses: actions/checkout@v2
	with:
	fetch-depth: 1

	- name: Test and build
	run: docker build -t triagebot .

	- name: Deploy to production
	uses: rust-lang/simpleinfra/github-actions/upload-docker-image@master
	with:
	image: triagebot
	repository: rust-triagebot
	region: us-west-1
	redeploy_ecs_cluster: rust-ecs-prod
	redeploy_ecs_service: triagebot
	aws_access_key_id: "${{ env.AWS_ACCESS_KEY_ID }}"
	aws_secret_access_key: "${{ secrets.AWS_SECRET_ACCESS_KEY }}"
	if: github.ref == 'refs/heads/master'

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