Kubernetes Version Compatibility Tests #1448

	name: Kubernetes Version Compatibility Tests
	on:
	push:
	pull_request:
	branches:
	- main
	workflow_dispatch:
	schedule:
	- cron: 0 0 * * *

	env:
	setupEnvtestCmd: "go run sigs.k8s.io/controller-runtime/tools/setup-envtest@latest"

	jobs:
	buildMatrix:
	name: Generate Matrix
	runs-on: ubuntu-latest
	outputs:
	matrix: ${{ steps.build.outputs.matrix }}
	steps:
	- name: Set up Go
	uses: actions/setup-go@v5
	with:
	go-version: '1.22'

	- name: Generate test matrix using setup-envtest
	id: build
	run: \|
	echo "matrix=$($setupEnvtestCmd -p env list \| awk '/)/ {print $2}' \| awk -F'.' '{print $2}' \| jq -c --slurp 'map(tostring) \| unique')" >> $GITHUB_OUTPUT

	test:
	name: Kubernetes 1.${{ matrix.downstreamApiserverMinorVersion }}
	needs: buildMatrix
	runs-on: ubuntu-latest
	env:
	upstreamApiserverVersion: 1.28.x
	strategy:
	fail-fast: false
	matrix:
	downstreamApiserverMinorVersion: ${{ fromJson(needs.buildMatrix.outputs.matrix) }}
	steps:
	- uses: actions/checkout@v4

	- name: Set up Go
	uses: actions/setup-go@v5
	with:
	go-version: '1.22'

	- name: Download kubebuilder assets
	run: \|
	echo "UPSTREAM_KUBEBUILDER_ASSETS=$($setupEnvtestCmd use -p path ${{ env.upstreamApiserverVersion }})" >> $GITHUB_ENV
	echo "DOWNSTREAM_KUBEBUILDER_ASSETS=$($setupEnvtestCmd use -p path 1.${{ matrix.downstreamApiserverMinorVersion }}.x)" >> $GITHUB_ENV

	- name: Run tests
	run: go test -v ./internal/controllers/reconciliation
	env:
	DOWNSTREAM_VERSION_MINOR: "${{ matrix.downstreamApiserverMinorVersion }}"

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