02295e7283
Change index to ease identify what service want to look. Split docs into more specific folder such as networking and storage. Change-Id: Ic7ac12b3dd555fa5c018eeb897ccd4a5a2dfe8f3
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103 lines
3.1 KiB
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.. _XenServer-guide:
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=========
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XenServer
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=========
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Overview
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========
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Kolla can deploy the OpenStack services on XenServer hosts by choosing
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``xenapi`` as the compute virt driver.
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In XenServer, there is a privileged domain which is known as dom0;
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and it can run a number of un-privileged domains which are known as
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domUs or VMs.
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Most OpenStack services (e.g. Keystone, Glance, Horizon) can run either
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in the XenServer VMs or in separate baremetal hosts, but some services
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(which make direct use of the hypervisor) must run in the XenServer VMs.
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These services will interact with the XenServer host via XenAPI to perform
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privileged operations. See the following list for such kind of services:
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* ``nova-compute``
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* ``neutron-openvswitch-agent-xenapi``
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* ``ceilometer-compute``
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.. note::
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At the moment, only CentOS 7.x has been tested.
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Preparation for compute node on XenServer hosts
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===============================================
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We need some bootstrap tasks particularly for XenAPI compute nodes. The
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tasks are implemented in the package of ``python-os-xenapi`` and exposed
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to kolla-ansible via a single command - ``xenapi_bootstrap``. This package
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is contained in the ``RDO CloudSIG repository`` [`RDO repos`_] and will be
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installed on compute nodes at nova deployment. So we need ensure this
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repository is reachable from the compute nodes or cache the repository
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locally.
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Create a compute VM on each XenServer host which will be used to boot
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instances on. The VM must meet the common requirements declared by
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kolla-ansible for KVM/QEMU deployment.
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Additionally you should install PV driver in the VM [`XenServer documents`_];
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and create the HIMN(Host Internal Management Network) for each compute VM
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by following these steps:
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1. In XenCenter, from the menu choose "View -> Hidden Objects";
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2. You will see HIMN in the host's 'Networking' page;
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3. Create an interface on HIMN for the compute VM.
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The remaining instructions are just the same as the preparations for
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KVM/QEMU deployment.
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Deployment
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----------
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Enable the virt type ``xenapi`` and configure connection options in
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``/etc/kolla/globals.yml``:
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.. code-block:: yaml
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nova_compute_virt_type: "xenapi"
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xenserver_username: "root"
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xenserver_connect_protocol: "https"
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.. note::
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When using ``https`` as the connection protocol, please refer XenServer
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user document to setup the signed SSL certificates to allow the secure
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communications between dom0 and domU. Otherwise, please use ``http`` for
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self-signed certificates.
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You also need set the password for xenserver_username in
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``/etc/kolla/passwords.yml``:
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.. code-block:: yaml
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xenserver_password: "root_password"
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Then you can start kolla-ansible deployment just following the general
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deployment instructions [`Quick Start`_].
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References
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==========
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For more information on XenAPI OpenStack, see:
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XenAPI OpenStack: https://docs.openstack.org/nova/latest/admin/configuration/hypervisor-xen-api.html
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.. _RDO repos: https://www.rdoproject.org/what/repos/
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.. _XenServer documents: https://docs.citrix.com/en-us/xenserver/current-release.html
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.. _Quick Start: https://docs.openstack.org/kolla-ansible/latest/user/quickstart.html
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