Test on K8S 1.31; drop 1.26 #342

	name: Lint and Test Charts

	on:
	push:
	branches:
	- master
	pull_request:
	branches:
	- master

	env:
	GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

	jobs:
	lint-test:
	runs-on: ubuntu-latest
	strategy:
	matrix:
	k8s: # See https://hub.docker.com/r/kindest/node/tags for valid tags
	# For relevant EOLs https://endoflife.date/kubernetes / https://endoflife.date/amazon-eks / https://endoflife.date/azure-kubernetes-service / https://endoflife.date/google-kubernetes-engine
	- v1.31.0 # EOL latest 2025-10-28
	- v1.30.3 # EOL latest 2025-07-23 for EKS
	- v1.29.7 # EOL latest 2025-03-23 for EKS
	- v1.28.12 # EOL latest 2025-02-04 for GKE
	- v1.27.16 # EOL latest 2024-08-31 for GKE
	steps:
	- name: Checkout
	uses: actions/checkout@v4
	with:
	fetch-depth: 0

	- name: Set up Helm
	uses: azure/setup-helm@v4
	with:
	version: latest

	- uses: actions/setup-python@v5
	with:
	python-version: '3.12'

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

	- name: Run chart-testing (list-changed)
	id: list-changed
	run: \|
	changed=$(ct list-changed --config .github/ct.yaml)
	if [[ -n "$changed" ]]; then
	echo "changed=true" >> $GITHUB_OUTPUT
	fi

	- name: Run chart-testing (lint)
	run: ct lint --config .github/ct.yaml

	- name: Create kind cluster
	uses: helm/[email protected]
	with:
	node_image: kindest/node:${{ matrix.k8s }}
	# Only build a kind cluster if there are chart changes to test.
	if: steps.list-changed.outputs.changed == 'true'

	- name: Run chart-testing (install)
	run: ct install --config .github/ct.yaml

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