openstack/openstack-ansible-os_nova
Code Issues Proposed changes

Configure DB addresses for each service

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To enable partitioning of DB traffic by-service, each service needs to
use a custom connection string. Defaulting the service address to a
common galera_address makes things continue to work by default.

While the galera_address could be overridden on a container or host
basis this requires repeating that behavior across each infra node in
the inventory. Providing service-specific connection address variables
simplifies the management somewhat for large deployments and may reduce
error rates.

The service install playbooks now default the service-specific variables
instead of galera_address to the internal lb vip from inventory to
maintain the ease-of-use currently available.

Any value for a service-specific variable set in user_variables.yml will
override the value in the playbook's vars to provide selective
customization as needed.

Change-Id: I4c98bf906a0c1cb11ddd41277a855dce22ff646a
Closes-Bug: 1462529
This commit is contained in:
Steve Lewis
2015-06-05 12:57:28 -07:00
committed by Kevin Carter
parent 661e2a087f
commit 4310931756
3 changed files with 4 additions and 4 deletions
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2
README.rst
View File

@@ -24,4 +24,4 @@ This role will install the following:
roles: roles:
- { role: "os_nova", tags: [ "os-nova" ] } - { role: "os_nova", tags: [ "os-nova" ] }
vars: vars:
galera_address: "{{ internal_lb_vip_address }}" nova_galera_address: "{{ internal_lb_vip_address }}"

4
tasks/nova_db_setup.yml
View File

@@ -17,7 +17,7 @@
mysql_db: mysql_db:
login_user: "{{ galera_root_user }}" login_user: "{{ galera_root_user }}"
login_password: "{{ galera_root_password }}" login_password: "{{ galera_root_password }}"
login_host: "{{ galera_address }}" login_host: "{{ nova_galera_address }}"
name: "{{ nova_galera_database }}" name: "{{ nova_galera_database }}"
state: "present" state: "present"
tags: tags:
@@ -27,7 +27,7 @@
mysql_user: mysql_user:
login_user: "{{ galera_root_user }}" login_user: "{{ galera_root_user }}"
login_password: "{{ galera_root_password }}" login_password: "{{ galera_root_password }}"
login_host: "{{ galera_address }}" login_host: "{{ nova_galera_address }}"
name: "{{ nova_galera_user }}" name: "{{ nova_galera_user }}"
password: "{{ nova_container_mysql_password }}" password: "{{ nova_container_mysql_password }}"
host: "{{ item }}" host: "{{ item }}"

2
templates/nova.conf.j2
View File

@@ -176,7 +176,7 @@ check_revocations_for_cached = False
{% if inventory_hostname not in groups['nova_compute'] %} {% if inventory_hostname not in groups['nova_compute'] %}
[database] [database]
connection = mysql://{{ nova_galera_user }}:{{ nova_container_mysql_password }}@{{ galera_address }}/{{ nova_galera_database }}?charset=utf8 connection = mysql://{{ nova_galera_user }}:{{ nova_container_mysql_password }}@{{ nova_galera_address }}/{{ nova_galera_database }}?charset=utf8
max_overflow = {{ nova_db_max_overflow }} max_overflow = {{ nova_db_max_overflow }}
max_pool_size = {{ nova_db_max_pool_size }} max_pool_size = {{ nova_db_max_pool_size }}
pool_timeout = {{ nova_db_pool_timeout }} pool_timeout = {{ nova_db_pool_timeout }}