cfg/bin/vault-rotate-sshkey-passphrase
Knut Ahlers c7f3356a71
Adjust to work only with vault hosted keys
Signed-off-by: Knut Ahlers <knut@ahlers.me>
2018-10-29 12:11:18 +01:00

34 lines
958 B
Bash
Executable File

#!/bin/bash
set -euo pipefail
source "${HOME}/bin/script_framework.sh"
keyname=${1:-}
[ -z "${keyname}" ] && fail "Key name not provided"
if [ ! -e "/tmp/${keyname}" ]; then
vault read -field=private "/secret/ssh-key/${keyname}" >"/tmp/${keyname}"
chmod 0600 \
"/tmp/${keyname}"
fi
function cleanup() {
rm -f \
"/tmp/${keyname}"
}
trap cleanup EXIT
OLDPASS=$(vault read -field=passphrase "/secret/ssh-key/${keyname}") || fail "Unable to retrieve old passphrase"
NEWPASS=$(password get -l 64) || fail "Unable to generate a new passphrase"
[ -z "${NEWPASS}" ] && fail "Unable to generate a new passphrase"
ssh-keygen -p -P "${OLDPASS}" -N "${NEWPASS}" -f "/tmp/${keyname}" || fail "Was not able to modify key with new passphrase"
vault-patch --log-level=warn "/secret/ssh-key/${keyname}" \
passphrase="${NEWPASS}" \
private=@/tmp/${keyname} \
passphrase_changed=$(date +%Y-%m-%dT%H:%M:%S%z)
echo "Everything was fine, key has been changed."