Add workflow to build a image for each push on all branches except main #1

	name: Check pull request
	on:
	push:
	branches-ignore:
	- main

	env:
	NAME: nais-api-reconcilers
	IMAGE_REPOSITORY: oci://europe-north1-docker.pkg.dev/nais-io/nais
	jobs:
	build_push:
	permissions:
	contents: read
	id-token: write
	name: Build and push
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- id: go_version
	run: echo "go_version=$(cat .tool-versions \| grep golang \| awk '{print $2}')" >> $GITHUB_OUTPUT
	- uses: nais/platform-build-push-sign@main
	id: build-push-sign
	with:
	name: ${{ env.NAME }}
	build_args: GO_VERSION=${{ steps.go_version.outputs.go_version }}-
	google_service_account: gh-api-reconcilers
	workload_identity_provider: ${{ secrets.NAIS_IO_WORKLOAD_IDENTITY_PROVIDER }}
	push: true
	- name: Build Chart
	run: \|-
	sed -i "s/^version: .*/version: ${{ steps.build-push-sign.outputs.version }}/g" charts/Chart.yaml
	cat charts/Chart.yaml
	helm package charts
	- name: Push Chart
	run: \|-
	helm push ${{ env.NAME }}*.tgz ${{ env.IMAGE_REPOSITORY }}

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