Use KO for building and pushing images #24

	name: Create and publish a Docker image to ghcr on main and nightly with ko

	on:
	push:
	paths:
	- "**.go"
	- "**.yaml"
	pull_request:
	paths:
	- "**.go"
	- "**.yaml"
	env:
	PLATFORMS: linux/amd64,linux/arm64,linux/ppc64le

	jobs:
	build-and-push-image:
	runs-on: ubuntu-latest
	permissions:
	contents: read
	packages: write

	concurrency:
	group: ${{ github.workflow }}-${{ github.ref }}
	cancel-in-progress: true

	steps:
	- name: Checkout repository
	uses: actions/checkout@v4

	- name: Set up Go
	uses: actions/setup-go@v5
	with:
	go-version-file: "go.mod"

	- uses: ko-build/[email protected]

	- name: Build and push images
	shell: bash
	run: \|
	set -x
	releaseBranchFormat='release-v'
	if [[ ${{ github.ref_name }} == ${releaseBranchFormat}* ]]; then
	tag="${${{ github.ref_name }}#*-}"
	else
	tag=$(echo ${{ github.ref_name }}\|sed 's,/merge,,')
	fi

	for image in ./cmd/*;do
	ko build -B -t "${tag}" --platform="${{ env.PLATFORMS }}" "${image}"
	done

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