chore: use `alpine:3.21.0` as base image #82

	# Copyright 2018-2020 The OpenEBS Authors. All rights reserved.
	#
	# Licensed under the Apache License, Version 2.0 (the "License");
	# you may not use this file except in compliance with the License.
	# You may obtain a copy of the License at
	#
	# http://www.apache.org/licenses/LICENSE-2.0
	#
	# Unless required by applicable law or agreed to in writing, software
	# distributed under the License is distributed on an "AS IS" BASIS,
	# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	# See the License for the specific language governing permissions and
	# limitations under the License.

	name: ci

	on:
	pull_request:
	branches:
	# on pull requests to main and release branches
	- main
	- 'v*'

	jobs:
	linux-utils:
	runs-on: ubuntu-latest
	strategy:
	fail-fast: false
	matrix:
	include:
	- image: linux-utils
	- image: alpine-sh
	- image: alpine-bash
	steps:
	- name: Checkout
	uses: actions/checkout@v4

	- name: Set up QEMU
	uses: docker/setup-qemu-action@v3
	with:
	platforms: all

	- name: Set up Docker Buildx
	id: buildx
	uses: docker/setup-buildx-action@v3
	with:
	version: v0.13.1

	- name: Build Image
	uses: docker/build-push-action@v5
	with:
	file: ./dockerfiles/${{ matrix.image }}/Dockerfile
	push: false
	load: true
	platforms: linux/amd64
	tags: \|
	openebs/${{ matrix.image }}:ci

	- name: Run Trivy vulnerability scanner
	uses: aquasecurity/trivy-action@master
	with:
	image-ref: 'openebs/${{ matrix.image }}:ci'
	format: 'table'
	exit-code: '1'
	ignore-unfixed: true
	severity: 'CRITICAL,HIGH'

Provide feedback