rsync_cmd() {
    rsync -e "ssh -F ${SSH_CONFIG_DIR}/config" ${@}
}

ssh_cmd() {
    if [[ "x${PROMENADE_DEBUG}" = "x1" ]]; then
        EXTRA_ARGS=-v
    else
        EXTRA_ARGS=
    fi
    ssh -F ${SSH_CONFIG_DIR}/config ${EXTRA_ARGS} ${@}
}

ssh_config_declare() {
    log Validating SSH config exists
    if [ ! -s ${SSH_CONFIG_DIR}/config ]; then
        log Creating SSH config
        env -i \
            SSH_CONFIG_DIR=${SSH_CONFIG_DIR} \
            envsubst < ${TEMPLATE_DIR}/ssh-config.sub > ${SSH_CONFIG_DIR}/config
    fi
}

ssh_keypair_declare() {
    log Validating SSH keypair exists
    if [ ! -s ${SSH_CONFIG_DIR}/id_rsa ]; then
        log Generating SSH keypair
        ssh-keygen -N '' -f ${SSH_CONFIG_DIR}/id_rsa &>> ${LOG_FILE}
    fi
}

ssh_load_pubkey() {
    cat ${SSH_CONFIG_DIR}/id_rsa.pub
}

ssh_setup_declare() {
    mkdir -p ${SSH_CONFIG_DIR}
    ssh_keypair_declare
    ssh_config_declare
}

ssh_wait() {
    NAME=${1}
    while ! ssh_cmd ${NAME} /bin/true; do
        sleep 0.5
    done
}