gce_firstboot

#!/bin/sh

# KEYWORD: firstboot
# PROVIDE: gce_firstboot
# REQUIRE: NETWORKING
# BEFORE: LOGIN

: ${user=devops}

. /etc/rc.subr

name=gce_firstboot
rcvar=gce_firstboot_enable
start_cmd="${name}_run"

SSHKEYURL="http://169.254.169.254/computeMetadata/v1/project/attributes/ssh-keys"

gce_firstboot_run()
{
        eval SSHKEYFILE="~${user}/.ssh/authorized_keys"

        echo "Fetching SSH public key GCE"
        mkdir -p `dirname ${SSHKEYFILE}`
        chmod 700 `dirname ${SSHKEYFILE}`
        chown ${user} `dirname ${SSHKEYFILE}`
        /usr/local/bin/curl --connect-timeout 5 -s -H "Metadata-Flavor: Google" -f ${SSHKEYURL} -o ${SSHKEYFILE}.gce
        if [ -f ${SSHKEYFILE}.gce ]; then
                touch ${SSHKEYFILE}
                sort -u ${SSHKEYFILE} ${SSHKEYFILE}.gce > ${SSHKEYFILE}.tmp
                mv ${SSHKEYFILE}.tmp ${SSHKEYFILE}
                chown ${user} ${SSHKEYFILE}
                rm ${SSHKEYFILE}.gce
        else
                echo "Fetching SSH public key failed!"
        fi
}

load_rc_config $name
run_rc_command "$1"