fix: build/Dockerfile to reduce vulnerabilities #490

	---
	## This worflow will build the litmus-e2e image for every new commit.
	name: LitmusE2E-CI
	on: [push, pull_request]

	jobs:
	build:
	runs-on: ubuntu-latest
	steps:
	- name: Checkout
	uses: actions/checkout@v2

	- name: Set Tag
	run: \|
	BRANCH="${GITHUB_REF##*/}"
	CI_TAG="ci"
	echo "TAG=${CI_TAG}" >> $GITHUB_ENV
	echo "BRANCH=${BRANCH}" >> $GITHUB_ENV

	- name: Print Tag info
	run: \|
	echo "BRANCH: ${BRANCH}"
	echo "TAG: ${TAG}"
	echo "${TAG}" > ${{ github.workspace }}/tag.txt
	shell: bash

	- name: Build Image
	env:
	DOCKER_REPO: litmuschaos
	DOCKER_IMAGE: litmus-e2e
	DOCKER_TAG: ${TAG}
	SAVE_PATH: ${{ github.workspace }}
	run: \|
	make docker-build
	make save
	chmod +x ${{ github.workspace }}/image.tar
	shell: bash

	- name: Upload artifact
	uses: actions/upload-artifact@v2
	with:
	name: myimage
	path: \|
	${{ github.workspace }}/image.tar
	${{ github.workspace }}/tag.txt

	push:
	runs-on: ubuntu-latest
	needs: build
	if: github.event_name == 'push'
	steps:
	- name: Checkout
	uses: actions/checkout@v2

	- name: Download artifact
	uses: actions/download-artifact@v2
	with:
	name: myimage
	path: ${{ github.workspace }}

	- name: Load Docker image
	run: \|
	docker load --input ${{ github.workspace }}/image.tar
	TAG=`cat ${{ github.workspace }}/tag.txt`
	echo "TAG=${TAG}" >> $GITHUB_ENV
	shell: bash

	- name: Push Image
	env:
	DOCKER_REPO: litmuschaos
	DOCKER_IMAGE: litmus-e2e
	DOCKER_TAG: ${TAG}
	DNAME: ${{ secrets.DNAME }}
	DPASS: ${{ secrets.DPASS }}
	run: \|
	make push
	shell: bash

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