78a828ef42
This patch adds initial support for deploying multiple Nova cells. Splitting a nova-cell role out from the Nova role allows a more granular approach to deploying and configuring Nova services. A new enable_cells flag has been added that enables the support of multiple cells via the introduction of a super conductor in addition to cell-specific conductors. When this flag is not set (the default), nova is configured in the same manner as before - with a single conductor. The nova role now deploys the global services: * nova-api * nova-scheduler * nova-super-conductor (if enable_cells is true) The nova-cell role handles services specific to a cell: * nova-compute * nova-compute-ironic * nova-conductor * nova-libvirt * nova-novncproxy * nova-serialproxy * nova-spicehtml5proxy * nova-ssh This patch does not support using a single cell controller for managing more than one cell. Support for sharing a cell controller will be added in a future patch. This patch should be backwards compatible and is tested by existing CI jobs. A new CI job has been added that tests a multi-cell environment. ceph-mon has been removed from the play hosts list as it is not necessary - delegate_to does not require the host to be in the play. Documentation will be added in a separate patch. Partially Implements: blueprint support-nova-cells Co-Authored-By: Mark Goddard <mark@stackhpc.com> Change-Id: I810aad7d49db3f5a7fd9a2f0f746fd912fe03917
24 lines
799 B
YAML
24 lines
799 B
YAML
---
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# NOTE(mgoddard): We use recreate_or_restart_container to cover the case where
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# nova_safety_upgrade is "yes", and we need to recreate all containers.
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- name: Reload nova API services to remove RPC version pin
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vars:
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service: "{{ nova_services[item] }}"
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become: true
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kolla_docker:
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action: "recreate_or_restart_container"
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common_options: "{{ docker_common_options }}"
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name: "{{ service.container_name }}"
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image: "{{ service.image }}"
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privileged: "{{ service.privileged | default(False) }}"
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volumes: "{{ service.volumes|reject('equalto', '')|list }}"
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dimensions: "{{ service.dimensions }}"
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when:
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- kolla_action == 'upgrade'
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- inventory_hostname in groups[service.group]
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- service.enabled | bool
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with_items:
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- nova-scheduler
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- nova-api
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