github.com/cilium/cilium@v1.16.2/images/scripts/get-image-digest.sh (about) 1 #!/usr/bin/env bash 2 3 # Copyright Authors of Cilium 4 # SPDX-License-Identifier: Apache-2.0 5 6 set -o errexit 7 set -o pipefail 8 set -o nounset 9 10 if [ "$#" -ne 1 ] ; then 11 echo "$0 supports exactly 1 argument" 12 exit 1 13 fi 14 15 function getSHA() { 16 if command -v sha256sum &> /dev/null; then 17 sha256sum | cut -d " " -f 1 18 elif command -v openssl &> /dev/null; then 19 openssl sha256 | cut -d " " -f 2 20 else 21 echo "$0 requires sha256sum or openssl to be installed." 22 exit 1 23 fi 24 } 25 26 inspect=$(docker buildx imagetools inspect "${1}" --raw 2>/dev/null | awk 'NR>1 { print p } { p = $0 } END { printf("%s", $0) }' | getSHA ) 27 # shellcheck disable=SC2181 28 if [ $? -eq 0 ]; then 29 echo "sha256:${inspect}" 30 else 31 echo "" 32 fi