Use KO for building and pushing images #8

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

	on:
	push:
	branches:
	- main
	- nightly
	paths:
	- "**.go"
	pull_request:
	paths:
	- "**.yaml"

	env:
	REGISTRY: ghcr.io

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

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

	strategy:
	matrix:
	platform: [linux/amd64, linux/arm64]

	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
	if [[ ${github.ref} == "refs/pull/*" ]]; then
	tag=pr-$(echo ${{ github.head_ref }} \| cut -c11-\|sed 's,/merge,,)
	else
	tag=$(echo ${{ github.ref }} \| cut -c11-)
	fi
	for image in cmd/*/main.go;do
	ko build -t ${tag} --platform=${{ matrix.platform }} ${image}
	done

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