########################################################################################################################
# ssh wrapper to continuously retry if unavailable
function ssh() {
    local opts=() end=0 host port cmds
    while [[ $1 ]]; do
        if ! ((end)); then
            case "$1" in
                -p) opts+=("$1" "$2"); port=$2; shift 2 ;;
                -*) opts+=("$1" "$2"); shift 2 ;;
                --) end=1; opts+=("$1"); shift ;;
                *) [[ ! ${host} ]] && host="$1" || cmds+=("$1"); shift ;;
            esac
        else
            opts+=("$1"); shift
        fi
    done

    [[ ${host} =~ @ ]] && { opts+=("-l" "${host%@*}"); host=${host##*@}; }

    echo "Waiting for ssh port '${port:=22}' on '${host}' to become available:"
    ( bash -c "exec {FD}<>/dev/tcp/${host}/${port}" ) &> /dev/null
    while [[ $? -ne 0 ]]; do
        sleep 2; ( bash -c "exec {FD}<>/dev/tcp/${host}/${port}" ) &> /dev/null
    done

    $(type -P ssh) "${opts[@]}" "${host}" "${cmds[@]}"
}
########################################################################################################################