de973b81fa
Kolla environment currently uses haproxy
to fullfill HA in mariadb. This patch
is switching haproxy to proxysql if enabled.
This patch is also replacing mariadb's user
'haproxy' with user 'monitor'. This replacement
has two reasons:
- Use better name to "monitor" galera claster
as there are two services using this user
(HAProxy, ProxySQL)
- Set password for monitor user as it's
always better to use password then not use.
Previous haproxy user didn't use password
as it was historically not possible with
haproxy and mariadb-clustercheck wasn't
implemented.
Depends-On: https://review.opendev.org/c/openstack/kolla/+/769385
Depends-On: https://review.opendev.org/c/openstack/kolla/+/765781
Depends-On: https://review.opendev.org/c/openstack/kolla/+/850656
Change-Id: I0edae33d982c2e3f3b5f34b3d5ad07a431162844
56 lines
2.2 KiB
Django/Jinja
56 lines
2.2 KiB
Django/Jinja
# This configuration file is used to configure proxysql.
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#
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# Admin_variables: https://proxysql.com/documentation/global-variables/admin-variables
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# Mysql_variables: https://proxysql.com/documentation/global-variables/mysql-variables
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# Mysql_servers: https://proxysql.com/documentation/main-runtime/#mysql_servers
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# Mysql_galera_hostgroups: https://proxysql.com/documentation/main-runtime/#mysql_galera_hostgroups
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datadir: "/var/lib/proxysql"
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errorlog: "/var/log/kolla/proxysql/proxysql.log"
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admin_variables:
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admin_credentials: "{{ proxysql_admin_user }}:{{ proxysql_admin_password }}"
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mysql_ifaces: "{{ api_interface_address }}:{{ proxysql_admin_port }};{{ kolla_internal_vip_address }}:{{ proxysql_admin_port }};/var/lib/kolla/proxysql/admin.sock"
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stats_credentials: "{{ proxysql_stats_user }}:{{ proxysql_stats_password }}"
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mysql_variables:
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threads: {{ proxysql_workers }}
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max_connections: {{ proxysql_max_connections }}
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interfaces: "{{ kolla_internal_vip_address }}:{{ database_port }}"
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monitor_username: "{{ mariadb_monitor_user }}"
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monitor_password: "{{ mariadb_monitor_password }}"
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mysql_servers:
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{% for shard_id, shard in mariadb_shards_info.shards.items() %}
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{% set WRITER_GROUP = shard_id | int * 10 %}
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{% for host in shard.hosts %}
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{% if loop.first %}
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{% set WEIGHT = 100 %}
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{% else %}
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{% set WEIGHT = 10 %}
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{% endif %}
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- address: "{{ 'api' | kolla_address(host) }}"
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port : {{ database_port }}
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hostgroup : {{ WRITER_GROUP }}
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max_connections: {{ proxysql_backend_max_connections }}
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weight : {{ WEIGHT }}
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comment : "Writer {{ host }}"
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{% endfor %}
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{% endfor %}
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mysql_galera_hostgroups:
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{% for shard_id, shard in mariadb_shards_info.shards.items() %}
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{% set WRITER_GROUP = shard_id | int * 10 %}
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{% set BACKUP_WRITER_GROUP = WRITER_GROUP | int + 1 %}
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{% set READER_GROUP = BACKUP_WRITER_GROUP | int + 1 %}
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{% set OFFLINE_GROUP = READER_GROUP | int + 1 %}
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- writer_hostgroup: {{ WRITER_GROUP }}
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backup_writer_hostgroup: {{ BACKUP_WRITER_GROUP }}
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reader_hostgroup: {{ READER_GROUP }}
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offline_hostgroup: {{ OFFLINE_GROUP }}
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max_connections: {{ proxysql_backend_max_connections }}
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max_writers: 1
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writer_is_also_reader: 0
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comment: "Galera cluster for shard {{ shard_id }}"
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{% endfor %}
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