Update the Ironic documentation

Change-Id: I2d4fcd51cd81567f22ccee85213e24508b0bd25d

doc/source/reference/ironic-guide.rst

@@ -6,26 +6,12 @@ Ironic in Kolla
 
 Overview
 ~~~~~~~~
-Currently Kolla can deploy the Ironic services:
-
-- ironic-api
-- ironic-conductor
-- ironic-dnsmasq
-- ironic-inspector
-
-As well as a required PXE service, deployed as ironic-pxe.
-
-Current status
-~~~~~~~~~~~~~~
-
-The Ironic implementation is "tech preview", so currently instances can only be
-deployed on baremetal. Further work will be done to allow scheduling for both
-virtualized and baremetal deployments.
+Ironic works well in Kolla, though it is not currently tested as part of Kolla
+CI, so may be subject to instability.
 
 Pre-deployment Configuration
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-
-Enable Ironic role in ``/etc/kolla/globals.yml``:
+Enable Ironic in ``/etc/kolla/globals.yml``:
 
 .. code-block:: yaml
 
@@ -33,55 +19,138 @@ Enable Ironic role in ``/etc/kolla/globals.yml``:
 
 .. end
 
-Beside that an additional network type ``vlan,flat`` has to be added to a list of
-tenant network types:
+In the same file, define a range of IP addresses that will be available for use
+by Ironic inspector, as well as a network to be used for the Ironic cleaning
+network:
 
 .. code-block:: yaml
 
-   neutron_tenant_network_types: "vxlan,vlan,flat"
+   ironic_dnsmasq_dhcp_range: "192.168.5.100,192.168.5.110"
+   ironic_cleaning_network: "public1"
 
 .. end
 
-Configuring Web Console
-~~~~~~~~~~~~~~~~~~~~~~~
+Ironic inspector also requires a deploy kernel and ramdisk to be placed in
+``/etc/kolla/config/ironic/``. The following example uses coreos which is
+commonly used in Ironic deployments, though any compatible kernel/ramdisk may
+be used:
 
-Configuration based off upstream `Node web console
-<https://docs.openstack.org/ironic/latest/admin/console.html#node-web-console>`__.
+.. code-block:: console
 
-Serial speed must be the same as the serial configuration in the BIOS settings.
-Default value: 115200bps, 8bit, non-parity.If you have different serial speed.
+   $ curl https://tarballs.openstack.org/ironic-python-agent/coreos/files/coreos_production_pxe.vmlinuz \
+     -o /etc/kolla/config/ironic/ironic-agent.kernel
 
-Set ironic_console_serial_speed in ``/etc/kolla/globals.yml``:
+   $ curl https://tarballs.openstack.org/ironic-python-agent/coreos/files/coreos_production_pxe_image-oem.cpio.gz \
+     -o /etc/kolla/config/ironic/ironic-agent.initramfs
 
-.. code-block:: yaml
+.. end
 
-   ironic_console_serial_speed: 9600n8
+Deployment
+~~~~~~~~~~
+Run the deploy as usual:
+
+.. code-block:: console
+
+  $ kolla-ansible deploy
 
 .. end
 
+
 Post-deployment configuration
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+A script named `init-runonce` is supplied as part of kolla-ansible to
+initialise the cloud with some defaults (only to be used for demo purposes):
+
+.. code-block:: console
 
-Configuration based off upstream `Ironic installation Documentation
-<https://docs.openstack.org/ironic/latest/install/index.html>`__.
+  tools/init-runonce
 
-Again, remember that enabling Ironic reconfigures nova compute (driver and
-scheduler) as well as changes neutron network settings. Further neutron setup
-is required as outlined below.
+.. end
 
-Create the flat network to launch the instances:
+Add the deploy kernel and ramdisk to Glance. Here we're reusing the same images
+that were fetched for the Inspector:
 
 .. code-block:: console
 
-   neutron net-create --tenant-id $TENANT_ID sharednet1 --shared \
-   --provider:network_type flat --provider:physical_network physnet1
+  openstack image create --disk-format aki --container-format aki --public \
+    --file /etc/kolla/config/ironic/ironic-agent.kernel deploy-vmlinuz
 
-   neutron subnet-create sharednet1 $NETWORK_CIDR --name $SUBNET_NAME \
-   --ip-version=4 --gateway=$GATEWAY_IP --allocation-pool \
-   start=$START_IP,end=$END_IP --enable-dhcp
+  openstack image create --disk-format ari --container-format ari --public \
+    --file /etc/kolla/config/ironic/ironic-agent.initramfs deploy-initrd
 
 .. end
 
-And then the above ID is used to set ``cleaning_network`` in the neutron
-section of ``ironic.conf``.
+Create a baremetal flavor:
+
+.. code-block:: console
+
+  openstack flavor create --ram 512 --disk 1 --vcpus 1 my-baremetal-flavor
+  openstack flavor set my-baremetal-flavor --property \
+    resources:CUSTOM_BAREMETAL_RESOURCE_CLASS=1
+
+.. end
+
+Create the baremetal node and associate a port. (Ensure to substitute correct
+values for the kernel, ramdisk, and MAC address for your baremetal node)
+
+
+.. code-block:: console
+
+  openstack baremetal node create --driver ipmi --name baremetal-node \
+    --driver-info ipmi_port=6230 --driver-info ipmi_username=admin \
+    --driver-info ipmi_password=password \
+    --driver-info ipmi_address=192.168.5.1 \
+    --resource-class baremetal-resource-class --property cpus=1 \
+    --property memory_mb=512 --property local_gb=1 \
+    --property cpu_arch=x86_64 \
+    --driver-info deploy_kernel=15f3c95f-d778-43ad-8e3e-9357be09ca3d \
+    --driver-info deploy_ramdisk=9b1e1ced-d84d-440a-b681-39c216f24121
+
+  openstack baremetal port create 52:54:00:ff:15:55 --node 57aa574a-5fea-4468-afcf-e2551d464412
+
+.. end
+
+Booting the baremetal
+~~~~~~~~~~~~~~~~~~~~~
+You can now use the following sample command to boot the baremetal instance:
+
+.. code-block:: console
+
+  openstack server create --image cirros --flavor my-baremetal-flavor \
+    --key-name mykey --network public1 demo1
+
+.. end
+
+Notes
+~~~~~
+
+Debugging DHCP
+--------------
+The following `tcpdump` command can be useful when debugging why dhcp
+requests may not be hitting various pieces of the process:
+
+.. code-block:: console
+
+  tcpdump -i <interface> port 67 or port 68 or port 69 -e -n
+
+.. end
+
+Configuring the Web Console
+---------------------------
+Configuration based off upstream `Node web console
+<https://docs.openstack.org/ironic/latest/admin/console.html#node-web-console>`__.
+
+Serial speed must be the same as the serial configuration in the BIOS settings.
+Default value: 115200bps, 8bit, non-parity.If you have different serial speed.
+
+Set ironic_console_serial_speed in ``/etc/kolla/globals.yml``:
+
+.. code-block:: yaml
+
+   ironic_console_serial_speed: 9600n8
+
+.. end
 
+Deploying using virtual baremetal (vbmc + libvirt)
+--------------------------------------------------
+See https://brk3.github.io/post/kolla-ironic-libvirt/