75 lines
1.7 KiB
Bash
Executable file
75 lines
1.7 KiB
Bash
Executable file
#!/bin/bash
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COLOR_RED="\033[0;31m"
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COLOR_GREEN="\033[0;32m"
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COLOR_CYAN="\033[0;36m"
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COLOR_PLAIN="\033[0m"
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function error {
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echo -e "${COLOR_RED}$@${COLOR_PLAIN}"
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}
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function success {
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echo -e "${COLOR_GREEN}$@${COLOR_PLAIN}"
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}
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function info {
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echo -e "${COLOR_CYAN}$@${COLOR_PLAIN}"
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}
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if ! ( which vault > /dev/null ); then
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error "vault is required."
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exit 2
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fi
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# Require something to be passed to this command
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if [ $# -eq 0 ]; then
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error "You need to specify a key name."
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exit 2
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fi
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# Create a helper script to send STDIN data to ssh-add
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HELPER=$(mktemp)
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chmod 0700 ${HELPER}
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trap "rm ${HELPER}" EXIT
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cat -s <<EOF > ${HELPER}
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#!/bin/bash
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vault read -field=private "/secret/ssh-key/\$1" | exec ssh-add -t 3600 -
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EOF
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for KEY_NAME in $@; do
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fingerprint=$(vault read -field=public "/secret/ssh-key/$1" | ssh-keygen -l -f -)
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# If this key is already in the agent we don't need to do anything
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if ( ssh-add -l | grep -q "${fingerprint}" ); then
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info "[${KEY_NAME}] Key already present."
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continue
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fi
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# Retrieve key from LastPass
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PWD=$(vault read -field=passphrase "/secret/ssh-key/${KEY_NAME}")
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# In case LastPass exitted non-zero we have no password
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if ! [ $? -eq 0 ]; then
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error "[${KEY_NAME}] Unable to get password. Not trying to unlock."
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continue
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fi
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# Fill password to ssh-add utility
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expect <<EOF >/dev/null
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spawn ${HELPER} ${KEY_NAME}
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expect "Enter passphrase"
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send "$PWD\n"
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expect "added:" {exit 0} timeout {exit 1}
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EOF
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if [ $? -eq 0 ]; then
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info "[${KEY_NAME}] Should be loaded by now."
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vault-patch --log-level=warn secret/ssh-key/${KEY_NAME} last_used=$(date +%Y-%m-%dT%H:%M:%S%z)
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else
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error "[${KEY_NAME}] Was not added successfully."
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fi
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done
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