Ironic deployment guide documentation

Author: assumptionsandg

doc/source/configuration/ironic.rst

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+======
+Ironic
+======
+
+Ironic networking
+=================
+
+Ironic will require the workload provisioning and cleaning networks to be
+configured in ``networks.yml``
+
+The workload provisioning network will require an allocation pool for
+Ironic inspection and for Neutron, an example configuration is shown
+below.
+
+.. code-block:: yaml
+
+  # Workload provisioning network IP information.
+  provision_wl_net_cidr: "172.0.0.0/16"
+  provision_wl_net_allocation_pool_start: "172.0.0.4"
+  provision_wl_net_allocation_pool_end: "172.0.0.6"
+  provision_wl_net_inspection_allocation_pool_start: "172.0.1.4"
+  provision_wl_net_inspection_allocation_pool_end: "172.0.1.250"
+  provision_wl_net_neutron_allocation_pool_start: "172.0.2.4"
+  provision_wl_net_neutron_allocation_pool_end: "172.0.2.250"
+  provision_wl_net_neutron_gateway: "172.0.1.1"
+
+The cleaning network will also require a Neutron allocation pool.
+
+.. code-block:: yaml
+
+  # Cleaning network IP information.
+  cleaning_net_cidr: "172.1.0.0/16"
+  cleaning_net_allocation_pool_start: "172.1.0.4"
+  cleaning_net_allocation_pool_end: "172.1.0.6"
+  cleaning_net_neutron_allocation_pool_start: "172.1.2.4"
+  cleaning_net_neutron_allocation_pool_end: "172.1.2.250"
+  cleaning_net_neutron_gateway: "172.1.0.1"
+
+OpenStack Config
+================
+
+Overcloud Ironic will require a router to exist between the internal API
+network and the provision workload network, a way to achieve this is by
+using `OpenStack Config <https://github.com/stackhpc/openstack-config>`
+to define the internal API network in Neutron and set up a router with
+a gateway.
+
+It not necessary to define the provision and cleaning networks in this
+configuration as they will be generated during
+
+.. code-block:: console
+
+  kayobe overcloud post configure
+
+The openstack config file could resemble the network, subnet and router
+configuration shown below:
+
+.. code-block:: yaml
+
+  networks:
+    - "{{ openstack_network_intenral }}"
+  openstack_network_internal:
+    name: "internal-net"
+    project: "admin"
+    provider_network_type: "vlan"
+    provider_physical_network: "physnet1"
+    provider_segmentation_id: 458
+    shared: false
+    external: true
+
+  subnets:
+    - "{{ openstack_subnet_internal }}"
+  openstack_subnet_internal:
+    name: "internal-net"
+    project: "admin"
+    cidr: "10.10.3.0/24"
+    enable_dhcp: true
+    allocation_pool_start: "10.10.3.3"
+    allocation_pool_end: "10.10.3.3"
+
+  openstack_routers:
+    - "{{ openstack_router_ironic }}"
+
+  openstack_router_ironic:
+    - name: ironic
+      project: admin
+      interfaces:
+        - net: "provision-net"
+          subnet: "provision-net"
+          portip: "172.0.1.1"
+        - net: "cleaning-net"
+          subnet: "cleaning-net"
+          portip: "172.1.0.1"
+          network: internal-net
+
+To provision baremetal nodes in Nova you will also require setting a flavour
+speciifc to that type of baremetal host. You will need to replace the custom
+resource ``resources:CUSTOM_<YOUR_BAREMETAL_RESOURCE_CLASS>`` placeholder with
+the resource class of your baremetal hosts, you will also need this later when
+configuring the baremetal-compute inventory.
+
+.. code-block:: yaml
+
+  openstack_flavors:
+    - "{{ openstack_flavor_baremetal_A }}"
+    # Bare metal compute node.
+    openstack_flavor_baremetal_A:
+    name: "baremetal-A"
+    ram: 1048576
+    disk: 480
+    vcpus: 256
+    extra_specs:
+    "resources:CUSTOM_<YOUR_BAREMETAL_RESOURCE_CLASS>": 1
+    "resources:VCPU": 0
+    "resources:MEMORY_MB": 0
+    "resources:DISK_GB": 0
+
+Enabling conntrack
+==================
+
+UEFI booting requires conntrack_helper to be configured on the Ironic neutron
+router, this is due to TFTP traffic being dropped due to being UDP. You will
+need to define some extension drivers in ``neutron.yml`` to ensure conntrack is
+enabled in neutron server.
+
+.. code-block:: yaml
+
+  kolla_neutron_ml2_extension_drivers:
+    port_security
+    conntrack_helper
+    dns_domain_ports
+
+The neutron l3 agent also requires conntrack to be set as an extension in
+``kolla/config/neutron/l3_agent.ini``
+
+.. code-block:: ini
+
+  [agent]
+  extensions = conntrack_helper
+
+It is also required to load the conntrack kernel module ``nf_nat_tftp``,
+``nf_conntrack`` and ``nf_conntrack_tftp`` on network nodes. You can load these
+modules using modprobe or define these in /etc/module-load.
+
+The Ironic neutron router will also need to be configured to use
+conntrack_helper.
+
+.. code-block:: json
+
+  "conntrack_helpers": {
+    "protocol": "udp",
+    "port": 69,
+    "helper": "tftp"
+  }
+
+Currently it's not possible to add this helper via the OpenStack CLI, to add
+this to the Ironic router you will need to make a request to the API directly,
+for example via cURL.
+
+.. code-block:: console
+
+  curl -g -i -X POST \
+  http://<internal_api_vip>:9696/v2.0/routers/<ironic_router_uuid>/conntrack_helpers \
+  -H "Accept: application/json" \
+  -H "User-Agent: openstacksdk/2.0.0 keystoneauth1/5.4.0 python-requests/2.31.0 CPython/3.9.18" \
+  -H "X-Auth-Token: <issued_token>" \
+  -d '{ "conntrack_helper": {"helper": "tftp", "protocol": "udp", "port": 69 } }'
+
+TFTP server
+===========
+
+By default the Ironic TFTP server (ironic_pxe container) will call the UEFI
+boot file ``ipxe-x86_64.efi`` instead of ``ipxe.efi`` meaning no boot file will
+be sent during the PXE boot process in the default configuration.
+
+As of now this is solved by using a hack workaround by changing the boot file
+in the ``ironic_pxe`` container. To do this you will need to enter the
+container and rename the file manually.
+
+.. code-block:: console
+
+  docker exec ironic_pxe “mv /tftpboot/ipxe-x86_64.efi /tftpboot/ipxe.efi”
+
+Baremetal inventory
+===================
+
+To begin enrolling nodes you will need to define them in the hosts file.
+
+.. code-block:: ini
+
+  [r1]
+  hv1 ipmi_address=10.1.28.16
+  hv2 ipmi_address=10.1.28.17
+  …
+
+  [r1:vars]
+  ironic_driver=redfish
+  resource_class=<your_resource_class>
+  redfish_system_id=<your_redfish_systen_id>
+  redfish_verify_ca=<your_redfish_verify_ca>
+  redfish_username=<your_redfish_username>
+  redfish_password=<your_redfish_password>
+
+  [baremetal-compute:children]
+  r1
+
+The typical layout for baremetal nodes are separated by racks, for instance
+in rack 1 we have the following configuration set up where the BMC addresses
+are defined for all nodes, and Redfish information such as username, passwords
+and the system ID are defined for the rack as a whole.
+
+You can add more racks to the deployment by replicating the rack 1 example and
+adding that as an entry to the baremetal-compute group.
+
+Node enrollment
+===============
+
+When nodes are defined in the inventory you can begin enrolling them by
+invoking the Kayobe commmand (Note that only the Redfish driver is supported
+by this command)
+
+.. code-block:: console
+
+  kayobe baremetal compute register
+
+Following registration, the baremetal nodes can be inspected and made
+available for provisioning by Nova via the Kayobe commands
+
+.. code-block:: console
+
+  kayobe baremetal compute inspect
+  kayobe baremetal compute provide