feat: add prometheus credentials to helm chart #6

	# based on: https://github.com/nats-io/k8s/blob/main/.github/workflows/test.yaml and https://github.com/helm/charts-repo-actions-demo/blob/main/.github/workflows/lint-test.yaml
	name: Lint, Install, and Test Charts

	on:
	workflow_dispatch:
	pull_request:
	paths:
	- 'ingress/**'
	- 'egress/**'
	- 'livekit-server/**'
	- '.github/workflows/test.yaml'

	jobs:
	lint-test:
	runs-on: ubuntu-latest
	strategy:
	fail-fast: false
	matrix:
	k8s:
	- "1.26"
	- "1.25"
	- "1.24"
	steps:
	- name: Checkout
	uses: actions/checkout@v4
	with:
	fetch-depth: 0

	- name: Set up Helm
	uses: azure/setup-helm@v3
	with:
	version: v3.11.2

	# Python is required because `ct lint` runs Yamale (https://github.com/23andMe/Yamale) and
	# yamllint (https://github.com/adrienverge/yamllint) which require Python
	- name: Set up Python
	uses: actions/setup-python@v5
	with:
	python-version: 3.9

	- name: Set up chart-testing
	uses: helm/[email protected]

	- name: Run chart-testing (lint)
	run: \|-
	ct lint \
	--all \
	--chart-dirs egress ingress livekit-server \
	--validate-maintainers=false

	- name: Create k8s cluster
	run: \|-
	sudo snap install microk8s --channel="${{ matrix.k8s }}/stable" --classic
	sudo microk8s.enable dns hostpath-storage
	sudo microk8s.kubectl wait --for=condition=ready --timeout=60s node --all
	sudo microk8s.kubectl wait --for=condition=ready --timeout=120s --namespace=kube-system pod --all
	mkdir -p ~/.kube
	sudo microk8s.config > ~/.kube/config
	chmod 600 ~/.kube/config

	- name: Run chart-testing (install)
	run: \|-
	ct install \
	--all \
	--chart-dirs egress ingress livekit-server

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