Automatic Replica Activation#
In order to automatically promote a Replica in case of the master becomes unavailable, you might want to download the activateReplica.pl script and its configuration file activateReplica.yml from the github repository zextras/sps-ha-utils or even clone it locally.
You need then to copy as the root user the activateReplica.pl to
the /usr/local/sbin/ directory and assign it executable
permissions
# chmod 700 /usr/local/sbin/activateReplica.pl
The configuration file needs to be edited by adding or replacing existing value with values that match your infrastructure.
Note
Make sure you fill the correct section of the configuration file depending if you use local or external LDAP authentication.
In the configuration file below, you need to provide the following data:
LDAP Server hostname
LDAP username and password
Postgres Server hostname
Postgres HA user and password
Destination Appserver (Mailbox) Node
Example configuration file
#General
create_log: 0
#Local LDAP
local_ldap_server: ""
local_ldap_port: "389"
local_ldap_proto: "ldap"
local_ldap_user_dn: "uid=zimbra,cn=admins,cn=zimbra"
local_ldap_password: ""
local_ldap_searchbase: "ou=people,dc=mail,dc=example,dc=com"
local_ldap_filter: "&(!(zimbraIsSystemAccount=TRUE))(zimbraAccountStatus=active)(zimbraMailDeliveryAddress=*@demo.zextras.io)(zimbraMailHost=mail.example.com)"
local_ldap_attr: "zimbraId" local_ldap_attrs: "sn givenName mail displayName description title l st co company"
#External LDAP
ldap_server: ""
ldap_port: 389
ldap_proto: "ldap"
ldap_searchbase: ""
ldap_user: ""
ldap_password: ""
ldap_attr: "mail"
ldap_filter: ""
exchange_contacts: 0
#HA Params
pg_server: "db.example.com"
pg_port: 5432
pg_user: "ha"
pg_password: "secure!password"
pg_db: "ha"
dst_hostname: ""
The configuration file can be saved on the location and the name that you
prefer. We use /opt/zextras/activateReplica.yml. You can
launch the automatic replica activation using command
# activateReplica.pl /usr/local/sbin/activateReplica.yml