add dev dockerfile and dev container #9

	name: Build and public docker image

	on:
	push:
	branches: "master"

	jobs:
	build-and-push-image:
	runs-on: ubuntu-latest
	# run only when code is compiling and tests are passing
	if: "!contains(github.event.head_commit.message, '[skip ci]') && !contains(github.event.head_commit.message, '[ci skip]')"
	# steps to perform in job
	steps:
	- name: Checkout code
	uses: actions/checkout@v3
	with:
	submodules: 'recursive'

	- name: install deps
	run: \|
	sudo apt-get install -y --no-install-recommends \
	libelf1 libelf-dev zlib1g-dev libclang-13-dev \
	make git clang llvm pkg-config build-essential

	- name: build package
	run: make build

	# setup Docker buld action
	- name: Set up Docker Buildx
	id: buildx
	uses: docker/setup-buildx-action@v2

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

	- name: Build image and push to GitHub Container Registry
	uses: docker/build-push-action@v2
	with:
	# relative path to the place where source code with Dockerfile is located
	context: ./
	file: dockerfile
	platforms: linux/amd64
	# Note: tags has to be all lower-case
	tags: \|
	ghcr.io/${{ github.repository_owner }}/libbpf-template:latest
	push: true

	- name: Image digest
	run: echo ${{ steps.docker_build.outputs.digest }}

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