Merge "Minor updates to anaconda doc"
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Zuul
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@ -1,14 +1,15 @@
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Deploying with anaconda deploy interface
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========================================
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Ironic supports deploying OS with anaconda installer in addition to IPA. This
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deploy interface supports ``pxe``, ``ipxe`` boot interfaces.
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Ironic supports deploying an OS with the `anaconda`_ installer.
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This anaconda deploy interface works with ``pxe`` and ``ipxe`` boot interfaces.
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Configuration
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-------------
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The anaconda deploy interface is not enabled by default. To enable this, use
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the ``enabled_deploy_interfaces`` configuration option in ironic.conf
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The anaconda deploy interface is not enabled by default. To enable this, add
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``anaconda`` to the value of the ``enabled_deploy_interfaces`` configuration
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option in ironic.conf. For example:
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.. code-block:: ini
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@ -17,31 +18,35 @@ the ``enabled_deploy_interfaces`` configuration option in ironic.conf
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enabled_deploy_interfaces = direct,anaconda
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...
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This change will not be effective until all Ironic conductors have been
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This change takes effect after all the ironic conductors have been
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restarted.
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When creating an ironic node, specify ``anaconda`` as the deploy interface.
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For example:
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.. code-block:: shell
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baremetal node create --driver ipmi \
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--deploy-interface anaconda \
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--boot-interface ipxe
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You can also set ``--deploy-interface`` on an existing node:
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You can also set the anaconda deploy interface via ``--deploy-interface`` on an
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existing node:
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.. code-block:: shell
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baremetal node set <NODE> --deploy-interface anaconda
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baremetal node set <node> --deploy-interface anaconda
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Creating an OS Image
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--------------------
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While anaconda allows installing individual RPMs the default kickstart file
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expects a OS tarball to be used as the OS image.
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While anaconda allows installing individual RPMs, the default kickstart file
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expects an OS tarball to be used as the OS image.
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A baremetal.yum file that lists all yum/dnf commands that need to be run to
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generate the OS tarball. The commands normally install packages and package'
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groups that need to be in the image
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This ``baremetal.yum`` file contains all the yum/dnf commands that need to be run
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in order to generate the OS tarball. These commands install packages and
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package groups that need to be in the image:
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.. code-block:: ini
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@ -49,8 +54,8 @@ groups that need to be in the image
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install cloud-init
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ts run
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An OS tarball can be created using following set of commands using above
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baremetal.yum file
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An OS tarball can be created using following set of commands, along with the above
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``baremetal.yum`` file:
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.. code-block:: shell
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@ -78,21 +83,24 @@ baremetal.yum file
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Configuring the OS Image in glance
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----------------------------------
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Anaconda is a two stage installer - The stage1 consists of the kernel and
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ramdisk and the stage2 lives in a squashfs file. All these components can be
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Anaconda is a two-stage installer -- stage 1 consists of the kernel and
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ramdisk and stage 2 lives in a squashfs file. All these components can be
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found in the CentOS/RHEL/Fedora ISO images.
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The kernel and ramdisk can be found at ``/images/pxeboot/vmlinuz`` and
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``/images/pxeboot/initrd.img`` respectively in the ISO. The stage2 squashfs
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``/images/pxeboot/initrd.img`` respectively in the ISO. The stage 2 squashfs
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image can be normally found at ``/LiveOS/squashfs.img`` or
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``/images/install.img``.
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The OS tarball must be configured with following properties in glance to be
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used with anaconda deploy driver
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The OS tarball must be configured with the following properties in glance, in order
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to be used with the anaconda deploy driver:
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1. ``kernel_id``
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2. ``ramdisk_id``
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3. ``stage2_id``
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* ``kernel_id``
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* ``ramdisk_id``
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* ``stage2_id``
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This is an example of adding the anaconda-related images and the OS tarball to
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glance:
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.. code-block:: shell
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@ -108,19 +116,27 @@ used with anaconda deploy driver
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--property ramdisk_id=<glance_uuid_ramdisk> \
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--property stage2_id=<glance_uuid_stage2> <disto-name-version>
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Creating a baremetal server
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---------------------------
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Creating a bare metal server
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----------------------------
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Apart from uploading a custom kickstart template to glance and associating it
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to the OS Image as ``ks_template`` property in glance, operators can also set
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the kickstart template in instance_info. The kickstart template set in
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instance_info takes precedence over the one set in the glance image. If
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kickstart template is not found in instance_info or the glance image property
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with the OS image via the ``ks_template`` property in glance, operators can
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also set the kickstart template in the ironic node's ``instance_info`` field.
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The kickstart template set in ``instance_info`` takes precedence over the one
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specified via the OS image in glance. If no kickstart template is specified
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(via the node's ``instance_info`` or ``ks_template`` glance image property),
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the default kickstart template will be used to deploy the OS.
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The default kickstart template is specified via the configuration option
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``[anaconda]default_ks_template``. It is set to this `ks.cfg.template`_
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but can be modified to be some other template.
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This is an example of how to set the kickstart template for a specific
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ironic node:
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.. code-block:: shell
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openstack baremetal node set $NODE_UUID \
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openstack baremetal node set <node> \
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--instance_info ks_template=glance://uuid
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Limitations
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@ -128,3 +144,6 @@ Limitations
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This deploy interface has only been tested with Red Hat based operating systems
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that use anaconda. Other systems are not supported.
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.. _`anaconda`: https://fedoraproject.org/wiki/Anaconda
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.. _`ks.cfg.template`: https://opendev.org/openstack/ironic/src/branch/master/ironic/drivers/modules/ks.cfg.template
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