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
20 lines
873 B
YAML
20 lines
873 B
YAML
---
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# Configure HAProxy for all cells for a particular proxy type.
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# Iterate over each cell group, creating HAProxy config for that cell.
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- name: "Configure HAProxy for {{ cell_proxy_service_name }}"
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include_tasks: cell_proxy_loadbalancer.yml
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vars:
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# NOTE(mgoddard): Defining this here rather than in
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# cell_proxy_loadbalancer.yml due to a weird issue seen on Ansible 2.8. If
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# project_name is specified as a role variable for the import, it seems to
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# get stuck and override the variable for subsequent imports of the
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# haproxy-config role for other services. By that point
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# cell_proxy_service_name is no longer defined, so it fails.
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project_name: "nova-cell:{{ cell_proxy_service_name }}"
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with_items: "{{ cell_proxy_groups }}"
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when: groups[cell_proxy_group] | length > 0
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loop_control:
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loop_var: cell_proxy_group
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tags: always
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