96 lines
2.1 KiB
ReStructuredText
96 lines
2.1 KiB
ReStructuredText
.. only:: comment
|
|
|
|
© Crown-owned copyright 2025, Defence Science and Technology Laboratory UK
|
|
|
|
.. _NTPClient:
|
|
|
|
NTPClient
|
|
#########
|
|
|
|
The NTPClient provides a client interface for connecting to the ``NTPServer``.
|
|
|
|
Key features
|
|
============
|
|
|
|
- Connects to the ``NTPServer`` via the ``SoftwareManager``.
|
|
|
|
Usage
|
|
=====
|
|
|
|
- Install on a Node via the ``SoftwareManager`` to start the database service.
|
|
- Service runs on UDP port 123 by default.
|
|
|
|
Implementation
|
|
==============
|
|
|
|
- Leverages ``SoftwareManager`` for sending payloads over the network.
|
|
- Provides easy interface for Nodes to find IP addresses via domain names.
|
|
- Extends base Service class.
|
|
|
|
|
|
Examples
|
|
========
|
|
|
|
Python
|
|
""""""
|
|
|
|
.. code-block:: python
|
|
|
|
from ipaddress import IPv4Address
|
|
|
|
from primaite.simulator.network.hardware.nodes.host.server import Server
|
|
from primaite.simulator.system.services.ntp.ntp_client import NTPClient
|
|
|
|
# Create Server
|
|
server = Server(
|
|
hostname="server",
|
|
ip_address="192.168.2.2",
|
|
subnet_mask="255.255.255.0",
|
|
default_gateway="192.168.1.1",
|
|
start_up_duration=0,
|
|
)
|
|
server.power_on()
|
|
|
|
# Install NTPClient on server
|
|
server.software_manager.install(NTPClient)
|
|
ntp_client: NTPClient = server.software_manager.software.get("NTPClient")
|
|
ntp_client.start()
|
|
|
|
ntp_client.configure(ntp_server_ip_address=IPv4Address("192.168.0.10"))
|
|
|
|
|
|
Via Configuration
|
|
"""""""""""""""""
|
|
|
|
.. code-block:: yaml
|
|
|
|
simulation:
|
|
network:
|
|
nodes:
|
|
- ref: example_server
|
|
hostname: example_server
|
|
type: server
|
|
...
|
|
services:
|
|
- ref: ntp_client
|
|
type: NTPClient
|
|
options:
|
|
ntp_server_ip: 192.168.0.10
|
|
|
|
Configuration
|
|
=============
|
|
|
|
``ntp_server_ip``
|
|
"""""""""""""""""
|
|
|
|
Optional. Default value is ``None``.
|
|
|
|
The IP address of an NTP Server which provides a time that the ``NTPClient`` can synchronise to.
|
|
|
|
This must be a valid octet i.e. in the range of ``0.0.0.0`` and ``255.255.255.255``.
|
|
|
|
``Common Attributes``
|
|
^^^^^^^^^^^^^^^^^^^^^
|
|
|
|
See :ref:`Common Configuration`
|