107b2025fe
It seems to me that there is too much information on one page, I have divided it into several pages for easier reading, as was already done on the pages: https://docs.openstack.org/openstack-ansible/latest/admin/openstack-firstrun.html https://docs.openstack.org/openstack-ansible/latest/admin/openstack-firstrun.html https://docs.openstack.org/openstack-ansible/latest/admin/maintenance-tasks.html Change-Id: Ic58e0c764f21c377b72e7229d1c053864b601785
49 lines
1.7 KiB
ReStructuredText
49 lines
1.7 KiB
ReStructuredText
Remove a compute host
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~~~~~~~~~~~~~~~~~~~~~
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The `OpenStack-Ansible Operator Tooling <https://opendev.org/openstack/openstack-ansible-ops>`_
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repository contains a playbook for removing a compute host from an
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OpenStack-Ansible environment.
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To remove a compute host, follow the below procedure.
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.. note::
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This guide describes how to remove a compute node from an OpenStack-Ansible
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environment completely. Perform these steps with caution, as the compute node will no
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longer be in service after the steps have been completed. This guide assumes
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that all data and instances have been properly migrated.
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#. Disable all OpenStack services running on the compute node.
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This can include, but is not limited to, the ``nova-compute`` service
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and the neutron agent service:
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.. note::
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Ensure this step is performed first.
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.. code-block:: console
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# Run these commands on the compute node to be removed
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# systemctl stop nova-compute
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# systemctl stop neutron-openvswitch-agent
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#. Clone the ``openstack-ansible-ops`` repository to your deployment host:
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.. code-block:: console
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$ git clone https://opendev.org/openstack/openstack-ansible-ops \
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/opt/openstack-ansible-ops
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#. Run the ``remove_compute_node.yml`` Ansible playbook with the
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``host_to_be_removed`` user variable set:
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.. code-block:: console
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$ cd /opt/openstack-ansible-ops/ansible_tools/playbooks
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openstack-ansible remove_compute_node.yml \
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-e host_to_be_removed="<name-of-compute-host>"
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#. After the playbook completes, remove the compute node from the
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OpenStack-Ansible configuration file in
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``/etc/openstack_deploy/openstack_user_config.yml``.
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