Ironic deployment guide documentation

assumptionsandg · assumptionsandg · commit d7e920a13ac1 · 2024-06-27T12:17:43.000+01:00
diff --git a/doc/source/configuration/index.rst b/doc/source/configuration/index.rst
@@ -11,6 +11,7 @@ the various features provided.
    walled-garden
    release-train
    host-images
+   ironic
    lvm
    swap
    cephadm
diff --git a/doc/source/configuration/ironic.rst b/doc/source/configuration/ironic.rst
@@ -0,0 +1,322 @@
+======
+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. The Inspector allocation pool will be
+used to define static addresses for baremetal nodes during inspection and
+the Neutron allocation pool is used to assign addresses dynamically during
+baremetal provisioning.
+
+.. 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 be deployed with a listening TFTP server on the
+control plane which will provide baremetal nodes that PXE boot with the
+Ironic Python Agent (IPA) kernel and ramdisk. Since the TFTP server is
+listening exclusively on the internal API network it's neccessary for a
+route to exist between the provisoning/cleaning networks and the internal
+API network, we can achieve this is by defining a Neutron router using
+`OpenStack Config <https://github.com/stackhpc/openstack-config>`.
+
+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_internal }}"
+
+  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
+specific 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
+==================
+
+Conntrack_helper will be required when UEFI booting on a cloud with ML2/OVS
+and using the iptables firewall_driver, otherwise TFTP traffic is dropped due
+to it 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"
+  }
+
+To add the conntrack_helper to the neutron router, you can use the openstack
+CLI
+
+.. code-block:: console
+
+  openstack network l3 conntrack helper create \
+  --helper tftp \
+  --protocol udp \
+  --port 69 \
+  <ironic_router_uuid>
+
+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
+  …
+
+  [baremetal-compute:children]
+  r1
+
+The baremetal nodes will also require some extra variables to be defined
+in the group_vars for your rack, these should include the BMC credentials
+and the Ironic driver you wish to use.
+
+.. code-block:: yaml
+
+    ironic_driver: redfish
+
+    ironic_driver_info:
+        redfish_system_id: "{{ ironic_redfish_system_id }}"
+        redfish_address: "{{ ironic_redfish_address }}"
+        redfish_username: "{{ ironic_redfish_username }}"
+        redfish_password: "{{ ironic_redfish_password }}"
+        redfish_verify_ca: "{{ ironic_redfish_verify_ca }}"
+        ipmi_address: "{{ ipmi_address }}"
+
+    ironic_properties:
+        capabilities: "{{ ironic_capabilities }}"
+
+    ironic_resource_class: "example_resouce_class"
+    ironic_redfish_system_id: "/redfish/v1/Systems/System.Embedded.1"
+    ironic_redfish_verify_ca: "{{ inspector_rule_var_redfish_verify_ca }}"
+    ironic_redfish_address: "{{ ipmi_address }}"
+    ironic_redfish_username: "{{ inspector_redfish_username }}"
+    ironic_redfish_password: "{{ inspector_redfish_password }}"
+    ironic_capabilities: "boot_option:local,boot_mode:uefi"
+
+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
+
+.. code-block:: console
+
+  (kayobe) $ 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) $ kayobe baremetal compute inspect
+  (kayobe) $ kayobe baremetal compute provide
+
+Baremetal hypervisors
+=====================
+
+To deploy baremetal hypervisor nodes it will be neccessary to split out
+the nodes you wish to use as hypervisors and add it to the Kayobe compute
+group to ensure the hypervisor is configured as a compute node during
+host configure.
+
+.. code-block:: ini
+
+    [r1]
+    hv1 ipmi_address=10.1.28.16
+
+    [r1-hyp]
+    hv2 ipmi_address=10.1.28.17
+
+    [r1:children]
+    r1-hyp
+
+    [compute:children]
+    r1-hyp
+
+    [baremetal-compute:children]
+    r1
+
+The hypervisor nodes will also need to define hypervisor specific variables
+such as the image to be used, network to provision on and the availability zone.
+These can be defined under group_vars.
+
+.. code-block:: yaml
+
+    hypervisor_image: "37825714-27da-48e0-8887-d609349e703b"
+    key_name: "testing"
+    availability_zone: "nova"
+    baremetal_flavor: "baremetal-A"
+    baremetal_network: "rack-net"
+    auth:
+      auth_url: "{{ lookup('env', 'OS_AUTH_URL') }}"
+      username: "{{ lookup('env', 'OS_USERNAME') }}"
+      password: "{{ lookup('env', 'OS_PASSWORD') }}"
+      project_name: "{{ lookup('env', 'OS_PROJECT_NAME') }}"
+
+To begin deploying these nodes as instances you will need to run the Ansible
+playbook deploy-baremetal-instance.yml.
+
+.. code-block:: console
+
+  (kayobe) $ kayobe playbook run $KAYOBE_CONFIG_PATH/ansible/deploy-baremetal-instance.yml
+
+This playbook will update network allocations with the new baremetal hypervisor
+IP addresses, create a Neutron port corresponding to the address and deploy
+an image on the baremetal instance.
+
+When the playbook has finished and the rack is successfully imaged, they can be
+configured with ``kayobe overcloud host configure`` and kolla compute services
+can be deployed with ``kayobe overcloud service deploy``.
+
+Un-enrolling hypervisors
+========================
+
+To convert baremetal hypervisors into regular baremetal compute instances you will need
+to drain the hypervisor of all running compute instances, you should first invoke the
+nova-compute-disable playbook to ensure all Nova services on the baremetal node are disabled
+and compute instances will not be allocated to this node.
+
+.. code-block:: console
+
+  (kayobe) $ kayobe playbook run $KAYOBE_CONFIG_PATH/ansible/nova-compute-disable.yml
+
+Now the Nova services are disabled you should also ensure any existing compute instances
+are moved elsewhere by invoking the nova-compute-drain playbook
+
+.. code-block:: console
+
+  (kayobe) $ kayobe playbook run $KAYOBE_CONFIG_PATH/ansible/nova-compute-drain.yml
+
+Now the node has no instances allocated to it you can delete the instance using
+the OpenStack CLI and the node will be moved back to ``available`` state.
+
+.. code-block:: console
+
+  (os-venv) $ openstack server delete ...
diff --git a/etc/kayobe/ansible/deploy-baremetal-instance.yml b/etc/kayobe/ansible/deploy-baremetal-instance.yml
@@ -49,17 +49,6 @@
   hosts: compute
   gather_facts: false
   connection: local
-  vars:
-    hypervisor_image: "37825714-27da-48e0-8887-d609349e703b"
-    key_name: "testing"
-    availability_zone: "nova"
-    baremetal_flavor: "baremetal-A"
-    baremetal_network: "rack-net"
-    auth:
-      auth_url: "{{ lookup('env', 'OS_AUTH_URL') }}"
-      username: "{{ lookup('env', 'OS_USERNAME') }}"
-      password: "{{ lookup('env', 'OS_PASSWORD') }}"
-      project_name: "{{ lookup('env', 'OS_PROJECT_NAME') }}"
   tasks:
     - name: Show baremetal node
       ansible.builtin.shell:
