Add TCP port to Lighthouse CoreDNS ClusterIP service #9296

	---
	name: Prometheus Tests

	on:
	pull_request:
	types: [labeled, opened, synchronize, reopened]

	permissions: {}

	jobs:
	check:
	name: Metrics Exported
	timeout-minutes: 20
	runs-on: ubuntu-latest
	if: \|
	( github.event.action == 'labeled' && github.event.label.name == 'check-prometheus' )
	\|\| ( github.event.action != 'labeled' && contains(github.event.pull_request.labels.*.name, 'check-prometheus') )
	steps:
	- name: Check out the repository
	uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332

	- name: Reclaim free space
	run: \|
	sudo swapoff -a
	sudo rm -f /swapfile
	df -h
	free -h

	- name: Deploy clusters+Submariner using the latest image, with Prometheus
	run: make deploy using=prometheus

	- name: Expose the first cluster's Prometheus
	run: >-
	KUBECONFIG=$(find $(git rev-parse --show-toplevel)/output/kubeconfigs/ -type f -printf %p:)
	kubectl --context=cluster1 port-forward service/prometheus-operated 9090 &

	- name: Make sure the submariner_gateways metric is exported
	run: >-
	for i in {1..10};
	do sleep 5; if test "$(curl -s --data-urlencode query=submariner_gateways http://localhost:9090/api/v1/query \|
	jq -r '.data.result[0].metric.__name__')" = "submariner_gateways";
	then exit 0;
	fi;
	done;
	curl -s --data-urlencode query=submariner_gateways http://localhost:9090/api/v1/query \| jq .;
	exit 1
	- name: Post mortem
	if: failure()
	uses: submariner-io/shipyard/gh-actions/post-mortem@devel

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