[DPE-3350] Add first changes for trivy #1

	name: Build ROCK
	concurrency:
	group: ${{ github.workflow }}-${{ github.ref }}
	cancel-in-progress: true
	on:
	pull_request:
	workflow_call:
	outputs:
	rock:
	description: "The rock output of build process."
	value: ${{ jobs.build.outputs.rock }}

	jobs:
	build:
	name: Build Rock
	runs-on: ubuntu-latest
	timeout-minutes: 30
	steps:
	- name: Checkout repository
	uses: actions/checkout@v3

	- name: Setup LXD
	uses: canonical/setup-lxd@main

	- name: Install dependencies
	run: \|
	# docker
	sudo snap install docker
	sudo addgroup --system docker; sudo adduser $USER docker
	newgrp docker
	sudo snap disable docker; sudo snap enable docker

	# skopeo
	sudo snap install --devmode --channel edge skopeo

	# rockcraft
	sudo snap install rockcraft --classic --edge

	# jq and yq
	sudo snap install jq yq

	- name: Build ROCK
	id: build
	run: \|
	rockcraft pack --verbose
	VERSION=$(yq '.version' rockcraft.yaml)
	echo "rock=charmed-opensearch_${VERSION}_amd64.rock" >> $GITHUB_OUTPUT

	- name: Upload locally built ROCK artifact
	uses: actions/upload-artifact@v3
	with:
	name: charmed-opensearch
	path: ${{ steps.build.outputs.rock }}

	outputs:
	rock: ${{ steps.build.outputs.rock }}

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