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===========
SNMP driver
===========
The SNMP hardware type enables control of power distribution units of the type
frequently found in data centre racks. PDUs frequently have a management
ethernet interface and SNMP support enabling control of the power outlets.
The SNMP power interface works with the :ref:`pxe-boot` interface for network
deployment and network-configured boot.
.. note::
Unlike most of the other power interfaces, the SNMP power interface does
not have a corresponding management interface. The SNMP hardware type uses
the ``noop`` management interface instead.
List of supported devices
=========================
This is a non-exhaustive list of supported devices. Any device not listed in
this table could possibly work using a similar driver.
Please report any device status.
============== ============== ========== =====================
Manufacturer Model Supported? Driver name
============== ============== ========== =====================
APC AP7920 Yes apc_masterswitch
APC AP9606 Yes apc_masterswitch
APC AP9225 Yes apc_masterswitchplus
APC AP7155 Yes apc_rackpdu
APC AP7900 Yes apc_rackpdu
APC AP7901 Yes apc_rackpdu
APC AP7902 Yes apc_rackpdu
APC AP7911a Yes apc_rackpdu
APC AP7921 Yes apc_rackpdu
APC AP7922 Yes apc_rackpdu
APC AP7930 Yes apc_rackpdu
APC AP7931 Yes apc_rackpdu
APC AP7932 Yes apc_rackpdu
APC AP7940 Yes apc_rackpdu
APC AP7941 Yes apc_rackpdu
APC AP7951 Yes apc_rackpdu
APC AP7960 Yes apc_rackpdu
APC AP7990 Yes apc_rackpdu
APC AP7998 Yes apc_rackpdu
APC AP8941 Yes apc_rackpdu
APC AP8953 Yes apc_rackpdu
APC AP8959 Yes apc_rackpdu
APC AP8961 Yes apc_rackpdu
APC AP8965 Yes apc_rackpdu
Aten all? Yes aten
CyberPower all? Untested cyberpower
EatonPower all? Untested eatonpower
Teltronix all? Yes teltronix
BayTech MRP27 Yes baytech_mrp27
Raritan PX3-5547V-V2 Yes raritan_pdu2
Raritan PX3-5726V Yes raritan_pdu2
Raritan PX3-5776U-N2 Yes raritan_pdu2
Raritan PX3-5969U-V2 Yes raritan_pdu2
Raritan PX3-5961I2U-V2 Yes raritan_pdu2
Vertiv NU30212 Yes vertivgeist_pdu
ServerTech CW-16VE-P32M Yes servertech_sentry3
ServerTech C2WG24SN Yes servertech_sentry4
============== ============== ========== =====================
Software Requirements
=====================
- The PySNMP package must be installed, variously referred to as ``pysnmp``
or ``python-pysnmp``
Enabling the SNMP Hardware Type
===============================
#. Add ``snmp`` to the list of ``enabled_hardware_types`` in ``ironic.conf``.
Also update ``enabled_management_interfaces`` and
``enabled_power_interfaces`` in ``ironic.conf`` as shown below:
.. code-block:: ini
[DEFAULT]
enabled_hardware_types = snmp
enabled_management_interfaces = noop
enabled_power_interfaces = snmp
#. To enable the network boot fallback, update ``enable_netboot_fallback`` in
``ironic.conf``:
.. code-block:: ini
[pxe]
enable_netboot_fallback = True
.. note::
It is important to enable the fallback as SNMP hardware type does not
support setting of boot devices. When booting in legacy (BIOS) mode,
the generated network booting artifact will force booting from local
disk. In UEFI mode, Ironic will configure the boot order using UEFI
variables.
#. Restart the Ironic conductor service.
.. code-block:: bash
service ironic-conductor restart
Ironic Node Configuration
=========================
Nodes configured to use the SNMP hardware type should have the ``driver`` field
set to the hardware type ``snmp``.
The following property values have to be added to the node's
``driver_info`` field:
- ``snmp_driver``: PDU manufacturer driver name or ``auto`` to automatically
choose ironic snmp driver based on ``SNMPv2-MIB::sysObjectID`` value as
reported by PDU.
- ``snmp_address``: the IPv4 address of the PDU controlling this node.
- ``snmp_port``: (optional) A non-standard UDP port to use for SNMP operations.
If not specified, the default port (161) is used.
- ``snmp_outlet``: The power outlet on the PDU (1-based indexing).
- ``snmp_version``: (optional) SNMP protocol version
(permitted values ``1``, ``2c`` or ``3``). If not specified, SNMPv1
is chosen.
- ``snmp_community``: (Required for SNMPv1/SNMPv2c unless
``snmp_community_read`` and/or ``snmp_community_write`` properties are
present in which case the latter take over) SNMP community
name parameter for reads and writes to the PDU.
- ``snmp_community_read``: SNMP community name parameter for reads
to the PDU. Takes precedence over the ``snmp_community`` property.
- ``snmp_community_write``: SNMP community name parameter for writes
to the PDU. Takes precedence over the ``snmp_community`` property.
- ``snmp_user``: (Required for SNMPv3) SNMPv3 User-based Security Model
(USM) user name. Synonym for now obsolete ``snmp_security`` parameter.
- ``snmp_auth_protocol``: SNMPv3 message authentication protocol ID.
Valid values include: ``none``, ``md5``, ``sha`` for all pysnmp versions
and additionally ``sha224``, ``sha256``, ``sha384``, ``sha512`` for
pysnmp versions 4.4.1 and later. Default is ``none`` unless ``snmp_auth_key``
is provided. In the latter case ``md5`` is the default.
- ``snmp_auth_key``: SNMPv3 message authentication key. Must be 8+
characters long. Required when message authentication is used.
- ``snmp_priv_protocol``: SNMPv3 message privacy (encryption) protocol ID.
Valid values include: ``none``, ``des``, ``3des``, ``aes``, ``aes192``,
``aes256`` for all pysnmp version and additionally ``aes192blmt``,
``aes256blmt`` for pysnmp versions 4.4.3+. Note that message privacy
requires using message authentication. Default is ``none`` unless
``snmp_priv_key`` is provided. In the latter case ``des`` is the default.
- ``snmp_priv_key``: SNMPv3 message privacy (encryption) key. Must be 8+
characters long. Required when message encryption is used.
- ``snmp_context_engine_id``: SNMPv3 context engine ID. Default is
the value of authoritative engine ID.
- ``snmp_context_name``: SNMPv3 context name. Default is an empty string.
The following command can be used to enroll a node with the ``snmp`` hardware
type:
.. code-block:: bash
baremetal node create \
--driver snmp --driver-info snmp_driver=<pdu_manufacturer> \
--driver-info snmp_address=<ip_address> \
--driver-info snmp_outlet=<outlet_index> \
--driver-info snmp_community=<community_string>
|
