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|
import ./../make-test-python.nix ({ pkgs, ...} :
let
replicateUser = "replicate";
replicatePassword = "secret";
in
{
name = "mysql-replication";
meta = with pkgs.stdenv.lib.maintainers; {
maintainers = [ eelco shlevy ];
};
nodes = {
master =
{ pkgs, ... }:
{
services.mysql.enable = true;
services.mysql.package = pkgs.mysql;
services.mysql.replication.role = "master";
services.mysql.replication.slaveHost = "%";
services.mysql.replication.masterUser = replicateUser;
services.mysql.replication.masterPassword = replicatePassword;
services.mysql.initialDatabases = [ { name = "testdb"; schema = ./testdb.sql; } ];
networking.firewall.allowedTCPPorts = [ 3306 ];
};
slave1 =
{ pkgs, nodes, ... }:
{
services.mysql.enable = true;
services.mysql.package = pkgs.mysql;
services.mysql.replication.role = "slave";
services.mysql.replication.serverId = 2;
services.mysql.replication.masterHost = nodes.master.config.networking.hostName;
services.mysql.replication.masterUser = replicateUser;
services.mysql.replication.masterPassword = replicatePassword;
};
slave2 =
{ pkgs, nodes, ... }:
{
services.mysql.enable = true;
services.mysql.package = pkgs.mysql;
services.mysql.replication.role = "slave";
services.mysql.replication.serverId = 3;
services.mysql.replication.masterHost = nodes.master.config.networking.hostName;
services.mysql.replication.masterUser = replicateUser;
services.mysql.replication.masterPassword = replicatePassword;
};
};
testScript = ''
master.start()
master.wait_for_unit("mysql")
master.wait_for_open_port(3306)
# Wait for testdb to be fully populated (5 rows).
master.wait_until_succeeds(
"sudo -u mysql mysql -u mysql -D testdb -N -B -e 'select count(id) from tests' | grep -q 5"
)
slave1.start()
slave2.start()
slave1.wait_for_unit("mysql")
slave1.wait_for_open_port(3306)
slave2.wait_for_unit("mysql")
slave2.wait_for_open_port(3306)
# wait for replications to finish
slave1.wait_until_succeeds(
"sudo -u mysql mysql -u mysql -D testdb -N -B -e 'select count(id) from tests' | grep -q 5"
)
slave2.wait_until_succeeds(
"sudo -u mysql mysql -u mysql -D testdb -N -B -e 'select count(id) from tests' | grep -q 5"
)
slave2.succeed("systemctl stop mysql")
master.succeed(
"echo 'insert into testdb.tests values (123, 456);' | sudo -u mysql mysql -u mysql -N"
)
slave2.succeed("systemctl start mysql")
slave2.wait_for_unit("mysql")
slave2.wait_for_open_port(3306)
slave2.wait_until_succeeds(
"echo 'select * from testdb.tests where Id = 123;' | sudo -u mysql mysql -u mysql -N | grep 456"
)
'';
})
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