add internal end-to-end docs #2506

	---
	name: "docker"

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

	# Cancel already running jobs
	concurrency:
	group: docker_${{ github.head_ref }}
	cancel-in-progress: true

	jobs:
	publish-image:
	name: "Build docker image and run smoke test"
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- name: Push image
	run: \|
	# build image
	docker build -t shotover:test .

	# run image for 5 seconds and then send it SIGTERM, if it returns a nonzero exit code fail CI
	timeout --preserve-status 5 docker run --mount type=bind,source="$(pwd)"/shotover-proxy/config,target=/config shotover:test

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