add dockerfile for dsnexec and documentation #402

	name: Build and push :main image

	on:
	push:
	branches: [ main ]
	pull_request:
	branches: [ main ]

	env:
	SLACK_WEBHOOK_URL: ${{ secrets.SLACK_WEBHOOK_URL }}

	jobs:

	build:

	runs-on: ubuntu-latest

	steps:
	- uses: actions/checkout@v3
	with:
	fetch-depth: 0
	- name: Log in to GHCR
	uses: docker/login-action@v1
	with:
	registry: ghcr.io
	username: ${{ github.actor }}
	password: ${{ secrets.GITHUB_TOKEN }}
	- name: Build Image
	env:
	REGISTRY: ghcr.io/${{ github.repository_owner }}
	run: \|
	echo 'db-controller-namespace' > .id
	make docker-build
	make docker-build-dbproxy

	- name: Push to GHCR
	env:
	REGISTRY: ghcr.io/${{ github.repository_owner }}
	run: \|
	make docker-push
	make docker-push-dbproxy
	- uses: act10ns/slack@v1
	with:
	status: ${{ job.status }}
	steps: ${{ toJson(steps) }}
	channel: '#db-controller'
	if: failure()

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