40b55416a8
This parameter makes no sense for them and is actually ignored after validation. This change makes it optional (still allowed for backward compatibility). Also cleanly separate validation code for partition and whole-disk images. Change-Id: I98da7d54cc6dd158d415e83c61659badc83fbeda Story: #2005165 Task: #29895
192 lines
8.3 KiB
ReStructuredText
192 lines
8.3 KiB
ReStructuredText
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Using Bare Metal service as a standalone service
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================================================
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It is possible to use the Bare Metal service without other OpenStack services.
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You should make the following changes to ``/etc/ironic/ironic.conf``:
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#. To disable usage of Identity service tokens::
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[DEFAULT]
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...
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auth_strategy=noauth
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#. If you want to disable the Networking service, you should have your network
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pre-configured to serve DHCP and TFTP for machines that you're deploying.
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To disable it, change the following lines::
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[dhcp]
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...
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dhcp_provider=none
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.. note::
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If you disabled the Networking service and the driver that you use is
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supported by at most one conductor, PXE boot will still work for your
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nodes without any manual config editing. This is because you know all
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the DHCP options that will be used for deployment and can set up your
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DHCP server appropriately.
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If you have multiple conductors per driver, it would be better to use
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Networking since it will do all the dynamically changing configurations
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for you.
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#. If you want to disable using a messaging broker between conductor and API
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processes, switch to JSON RPC instead:
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.. code-block:: ini
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[DEFAULT]
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rpc_transport = json-rpc
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If you don't use Image service, it's possible to provide images to Bare Metal
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service via a URL.
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.. note::
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At the moment, only two types of URLs are acceptable instead of Image
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service UUIDs: HTTP(S) URLs (for example, "http://my.server.net/images/img")
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and file URLs (file:///images/img).
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There are however some limitations for different hardware interfaces:
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* If you're using :ref:`direct-deploy`, you have to provide the Bare Metal
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service with the MD5 checksum of your instance image. To compute it, you can
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use the following command::
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md5sum image.qcow2
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ed82def8730f394fb85aef8a208635f6 image.qcow2
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* :ref:`direct-deploy` requires the instance image be accessible through a
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HTTP(s) URL.
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Steps to start a deployment are pretty similar to those when using Compute:
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#. To use the `openstack baremetal CLI
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<https://docs.openstack.org/python-ironicclient/latest/cli/osc_plugin_cli.html>`_,
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set up these environment variables. Since no authentication strategy is
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being used, the value can be any string for OS_TOKEN. OS_URL is
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the URL of the ironic-api process.
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For example::
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export OS_TOKEN=fake-token
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export OS_URL=http://localhost:6385/
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#. Create a node in Bare Metal service. At minimum, you must specify the driver
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name (for example, ``ipmi``). You can also specify all the required
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driver parameters in one command. This will return the node UUID::
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openstack baremetal node create --driver ipmi \
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--driver-info ipmi_address=ipmi.server.net \
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--driver-info ipmi_username=user \
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--driver-info ipmi_password=pass \
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--driver-info deploy_kernel=file:///images/deploy.vmlinuz \
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--driver-info deploy_ramdisk=http://my.server.net/images/deploy.ramdisk
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+--------------+--------------------------------------------------------------------------+
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| Property | Value |
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+--------------+--------------------------------------------------------------------------+
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| uuid | be94df40-b80a-4f63-b92b-e9368ee8d14c |
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| driver_info | {u'deploy_ramdisk': u'http://my.server.net/images/deploy.ramdisk', |
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| | u'deploy_kernel': u'file:///images/deploy.vmlinuz', u'ipmi_address': |
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| | u'ipmi.server.net', u'ipmi_username': u'user', u'ipmi_password': |
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| | u'******'} |
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| extra | {} |
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| driver | ipmi |
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| chassis_uuid | |
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| properties | {} |
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+--------------+--------------------------------------------------------------------------+
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Note that here deploy_kernel and deploy_ramdisk contain links to
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images instead of Image service UUIDs.
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#. As in case of Compute service, you can also provide ``capabilities`` to node
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properties, but they will be used only by Bare Metal service (for example,
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boot mode). Although you don't need to add properties like ``memory_mb``,
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``cpus`` etc. as Bare Metal service will require UUID of a node you're
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going to deploy.
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#. Then create a port to inform Bare Metal service of the network interface
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cards which are part of the node by creating a port with each NIC's MAC
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address. In this case, they're used for naming of PXE configs for a node::
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openstack baremetal port create $MAC_ADDRESS --node $NODE_UUID
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#. You also need to specify some fields in the node's ``instance_info``:
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* ``image_source`` - URL of the whole disk or root partition image,
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mandatory. For :ref:`direct-deploy` only HTTP(s) links are accepted,
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while :ref:`iscsi-deploy` also accepts links to local files (prefixed
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with ``file://``).
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* ``root_gb`` - size of the root partition, required for partition images.
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.. note::
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Older versions of the Bare Metal service used to require a positive
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integer for ``root_gb`` even for whole-disk images. You may want to set
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it for compatibility.
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* ``image_checksum`` - MD5 checksum of the image specified by
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``image_source``, only required for :ref:`direct-deploy`.
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Starting with the Stein release of ironic-python-agent can also be a URL
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to a checksums file, e.g. one generated with:
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.. code-block:: shell
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cd /path/to/http/root
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md5sum *.img > checksums
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* ``kernel``, ``ramdisk`` - HTTP(s) or file URLs of the kernel and
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initramfs of the target OS, only required for partition images.
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For example::
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openstack baremetal node set $NODE_UUID \
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--instance-info image_source=$IMG \
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--instance-info image_checksum=$MD5HASH \
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--instance-info kernel=$KERNEL \
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--instance-info ramdisk=$RAMDISK \
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--instance-info root_gb=10
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#. Validate that all parameters are correct::
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openstack baremetal node validate $NODE_UUID
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+------------+--------+----------------------------------------------------------------+
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| Interface | Result | Reason |
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+------------+--------+----------------------------------------------------------------+
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| boot | True | |
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| console | False | Missing 'ipmi_terminal_port' parameter in node's driver_info. |
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| deploy | True | |
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| inspect | True | |
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| management | True | |
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| network | True | |
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| power | True | |
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| raid | True | |
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| storage | True | |
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+------------+--------+----------------------------------------------------------------+
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#. Now you can start the deployment, run::
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openstack baremetal node deploy $NODE_UUID
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For iLO drivers, fields that should be provided are:
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* ``ilo_deploy_iso`` under ``driver_info``;
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* ``ilo_boot_iso``, ``image_source``, ``root_gb`` under ``instance_info``.
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.. note::
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The Bare Metal service tracks content changes for non-Glance images by
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checking their modification date and time. For example, for HTTP image,
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if 'Last-Modified' header value from response to a HEAD request to
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"http://my.server.net/images/deploy.ramdisk" is greater than cached image
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modification time, Ironic will re-download the content. For "file://"
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images, the file system modification time is used.
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Other references
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----------------
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* :ref:`local-boot-without-compute`
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