added new workflow for releasing the mq-exporter container image #1

	name: Build/Release IBM MQ Exporter

	# on:
	# push:
	# branches:
	# - main
	# paths:
	# - "container/**"
	# - ".github/workflows/container.yaml"

	jobs:
	push-images:
	runs-on: ubuntu-latest
	strategy:
	fail-fast: false
	matrix:
	app:
	- "mq-metric-samples"
	steps:
	- name: Get Tag From Environment
	id: get-tag
	run: printf '::set-output name=tag::%s' "$(git rev-parse --short HEAD)"

	- name: Set up Docker Buildx
	id: buildx
	uses: docker/setup-buildx-action@v1

	- name: Set up QEMU
	uses: docker/setup-qemu-action@v1

	- name: Login to Github Container Registry
	uses: docker/login-action@v2
	with:
	registry: ghcr.io
	username: ${{ github.actor }}
	password: ${{ secrets.GITHUB_TOKEN }}

	- name: Build and push
	uses: docker/build-push-action@v2
	with:
	context: submodules/${{ matrix.app }}
	file: submodules/${{ matrix.app }}/Dockerfile
	platforms: linux/amd64,linux/arm64
	push: true
	tags: ghcr.io/observiq/${{ matrix.app }}:${{ steps.get-tag.outputs.tag }}

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