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MySQL Replication (that actually works) (#7198)

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Improves replication functionality by:
 * adding slaveHost on the 'master' role
 * adds slave user to master with replication only permissions
This commit is contained in:
ben smith 2016-07-20 17:15:55 -07:00 committed by Rok Garbas
parent db7b4fb073
commit e641974f06
1 changed files with 15 additions and 1 deletions
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16
nixos/modules/services/databases/mysql.nix
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@ -128,6 +128,10 @@ in
description = "Hostname of the MySQL master server"; description = "Hostname of the MySQL master server";
}; };
slaveHost = mkOption {
description = "Hostname of the MySQL slave server";
};
masterUser = mkOption { masterUser = mkOption {
description = "Username of the MySQL replication user"; description = "Username of the MySQL replication user";
}; };
@ -231,10 +235,20 @@ in
fi fi
'') cfg.initialDatabases} '') cfg.initialDatabases}
${optionalString (cfg.replication.role == "slave" && atLeast55) ${optionalString (cfg.replication.role == "master" && atLeast55)
'' ''
# Set up the replication master # Set up the replication master
( echo "use mysql;"
echo "GRANT REPLICATION SLAVE ON *.* TO '${cfg.replication.masterUser}'@'${cfg.replication.slaveHost}';"
echo "update user set Password=password('${cfg.replication.masterPassword}') where User='${cfg.replication.masterUser}';"
) | ${mysql}/bin/mysql -u root -N
''}
${optionalString (cfg.replication.role == "slave" && atLeast55)
''
# Set up the replication slave
( echo "stop slave;" ( echo "stop slave;"
echo "change master to master_host='${cfg.replication.masterHost}', master_user='${cfg.replication.masterUser}', master_password='${cfg.replication.masterPassword}';" echo "change master to master_host='${cfg.replication.masterHost}', master_user='${cfg.replication.masterUser}', master_password='${cfg.replication.masterPassword}';"
echo "start slave;" echo "start slave;"