114 lines
3.8 KiB
ReStructuredText
114 lines
3.8 KiB
ReStructuredText
==============
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Administration
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==============
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This section describes how to use kayobe to simplify post-deployment
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administrative tasks.
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Reconfiguring Containerised Services
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====================================
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When configuration is changed, it is necessary to apply these changes across
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the system in an automated manner. To reconfigure the overcloud, first make
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any changes required to the configuration on the control host. Next, run the
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following command::
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(kayobe-venv) $ kayobe overcloud service reconfigure
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In case not all services' configuration have been modified, performance can be
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improved by specifying Ansible tags to limit the tasks run in kayobe and/or
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kolla-ansible's playbooks. This may require knowledge of the inner workings of
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these tools but in general, kolla-ansible tags the play used to configure each
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service by the name of that service. For example: ``nova``, ``neutron`` or
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``ironic``. Use ``-t`` or ``--tags`` to specify kayobe tags and ``-kt`` or
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``--kolla-tags`` to specify kolla-ansible tags. For example::
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(kayobe-venv) $ kayobe overcloud service reconfigure --tags config --kolla-tags nova,ironic
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Upgrading Containerised Services
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================================
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Containerised control plane services may be upgraded by replacing existing
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containers with new containers using updated images which have been pulled from
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a registry or built locally. If using an updated version of Kayobe or
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upgrading from one release of OpenStack to another, be sure to follow the
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:ref:`kayobe upgrade guide <upgrading>`. It may be necessary to upgrade one
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or more services within a release, for example to apply a patch or minor
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release.
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To upgrade the containerised control plane services::
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(kayobe-venv) $ kayobe overcloud service upgrade
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As for the reconfiguration command, it is possible to specify tags for Kayobe
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and/or kolla-ansible::
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(kayobe-venv) $ kayobe overcloud service upgrade --tags config --kolla-tags keystone
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Destroying the Overcloud Services
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=================================
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.. note::
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This step will destroy all containers, container images, volumes and data on
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the overcloud hosts.
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To destroy the overcloud services::
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(kayobe-venv) $ kayobe overcloud service destroy --yes-i-really-really-mean-it
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Deprovisioning The Cloud
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========================
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.. note::
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This step will power down the overcloud hosts and delete their nodes'
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instance state from the seed's ironic service.
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To deprovision the overcloud::
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(kayobe-venv) $ kayobe overcloud deprovision
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Deprovisioning The Seed VM
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==========================
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.. note::
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This step will destroy the seed VM and its data volumes.
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To deprovision the seed VM::
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(kayobe-venv) $ kayobe seed vm deprovision
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Running Kayobe Playbooks on Demand
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==================================
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In some situations it may be necessary to run an individual Kayobe playbook.
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Playbooks are stored in ``<kayobe repo>/ansible/*.yml``. To run an arbitrary
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Kayobe playbook::
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(kayobe-venv) $ kayobe playbook run <playbook> [<playbook>]
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Running Kolla-ansible Commands
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==============================
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To execute a kolla-ansible command::
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(kayobe-venv) $ kayobe kolla ansible run <command>
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Dumping Kayobe Configuration
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============================
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The Ansible configuration space is quite large, and it can be hard to determine
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the final values of Ansible variables. We can use Kayobe's
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``configuration dump`` command to view individual variables or the variables
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for one or more hosts. To dump Kayobe configuration for one or more hosts::
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(kayobe-venv) $ kayobe configuration dump
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The output is a JSON-formatted object mapping hosts to their hostvars.
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We can use the ``--var-name`` argument to inspect a particular variable or the
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``--host`` or ``--hosts`` arguments to view a variable or variables for a
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specific host or set of hosts.
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