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Add tags to roles

Prior to Ocata, the Controller role was hardcoded for various lookups.
When we switched to having the primary role name being dynamically
pulled from the roles_data.yaml using the first role as the primary
role as part of I36df7fa86c2ff40026d59f02248af529a4a81861, it
introduced a regression for folks who had previously been using
a custom roles file without the Controller being listed first.

Instead of relying on the position of the role in the roles data, this
change adds the concepts of tags to the role data that can be used when
looking for specific functionality within the deployment process. If
no roles are specified with this the tags indicating a 'primary'
'controller', it will fall back to using  the first role listed in the
roles data as the primary role.

Change-Id: Id3377e7d7dcc88ba9a61ca9ef1fb669949714f65
Closes-Bug: #1677374
changes/61/451561/5
Alex Schultz 5 years ago
parent
commit
be274f1f49
  1. 13
      docker/docker-steps.j2
  2. 10
      overcloud.j2.yaml
  3. 18
      releasenotes/notes/role-tags-16ac2e9e8fcab218.yaml
  4. 13
      roles_data.yaml
  5. 5
      roles_data_undercloud.yaml

13
docker/docker-steps.j2

@ -1,7 +1,14 @@
# certain initialization steps (run in a container) will occur
# on the first role listed in the roles file
{% set primary_role_name = roles[0].name -%}
# on the role marked as primary controller or the first role listed
{%- set primary_role = [roles[0]] -%}
{%- for role in roles -%}
{%- if 'primary' in role.tags and 'controller' in role.tags -%}
{%- set _ = primary_role.pop() -%}
{%- set _ = primary_role.append(role) -%}
{%- endif -%}
{%- endfor -%}
{%- set primary_role_name = primary_role[0].name -%}
# primary role is: {{primary_role_name}}
heat_template_version: ocata
description: >

10
overcloud.j2.yaml

@ -1,4 +1,12 @@
{% set primary_role_name = roles[0].name -%}
{%- set primary_role = [roles[0]] -%}
{%- for role in roles -%}
{%- if 'primary' in role.tags and 'controller' in role.tags -%}
{%- set _ = primary_role.pop() -%}
{%- set _ = primary_role.append(role) -%}
{%- endif -%}
{%- endfor -%}
{%- set primary_role_name = primary_role[0].name -%}
# primary role is: {{primary_role_name}}
heat_template_version: ocata
description: >

18
releasenotes/notes/role-tags-16ac2e9e8fcab218.yaml

@ -0,0 +1,18 @@
---
features:
- |
Adds tags to roles that allow an operator to specify custom tags to use
when trying to find functionality available from a role. Currently a role
with both the 'primary' and 'controller' tag is consider to be the primary
role. Historically the role named 'Controller' was the 'primary' role and
this primary designation is used to determine items like memcache ip
addresses. If no roles have the both the 'primary' and 'controller' tags,
the first role specified in the roles_data.yaml is used as the primary
role.
upgrade:
- |
If using custom roles data, the logic was changed to leverage the first
role listed in the roles_data.yaml file to be the primary role. This can
be worked around by adding the 'primary' and 'controller' tags to the
custom controller role in your roles_data.yaml to ensure that the defined
custom controller role is still considered the primary role.

13
roles_data.yaml

@ -28,9 +28,18 @@
# ServicesDefault: (list) optional default list of services to be deployed
# on the role, defaults to an empty list. Sets the default for the
# {{role.name}}Services parameter in overcloud.yaml
- name: Controller # the 'primary' role goes first
#
# tags: (list) list of tags used by other parts of the deployment process to
# find the role for a specific type of functionality. Currently a role
# with both 'primary' and 'controller' is used as the primary role for the
# deployment process. If no roles have have 'primary' and 'controller', the
# first role in this file is used as the primary role.
#
- name: Controller
CountDefault: 1
tags:
- primary
- controller
ServicesDefault:
- OS::TripleO::Services::CACerts
- OS::TripleO::Services::CertmongerUser

5
roles_data_undercloud.yaml

@ -1,6 +1,9 @@
- name: Undercloud # the 'primary' role goes first
- name: Undercloud
CountDefault: 1
disable_constraints: True
tags:
- primary
- controller
ServicesDefault:
- OS::TripleO::Services::Ntp
- OS::TripleO::Services::MySQL

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