Add support to list global forwarding rules #33

	name: Docker Image CI

	on:
	- push
	- pull_request

	jobs:
	docker-image:
	name: "Push to dockerhub"
	runs-on: ubuntu-latest
	if: github.event_name != 'pull_request'
	steps:
	- uses: actions/checkout@v2
	- uses: docker/setup-buildx-action@v1
	- uses: actions/cache@v2
	with:
	path: /tmp/.buildx-cache
	key: ${{ runner.os }}-buildx-${{ github.sha }}
	restore-keys: \|
	${{ runner.os }}-buildx-
	- uses: Surgo/docker-smart-tag-action@v1
	id: smarttag
	with:
	docker_image: tsuru/gcp-state-metrics
	default_branch: main
	tag_with_sha: "true"
	- uses: docker/login-action@v1
	with:
	username: ${{ secrets.DOCKERHUB_USERNAME }}
	password: ${{ secrets.DOCKERHUB_PASSWORD }}
	- uses: docker/build-push-action@v2
	with:
	push: true
	tags: ${{ steps.smarttag.outputs.tag }}
	cache-from: type=local,src=/tmp/.buildx-cache
	cache-to: type=local,dest=/tmp/.buildx-cache

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