nixpkgs/nixos/tests/mysql/mysql-replication.nix

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{
system ? builtins.currentSystem,
config ? {},
pkgs ? import ../../.. { inherit system config; },
lib ? pkgs.lib
}:
let
inherit (import ./common.nix { inherit pkgs lib; }) mkTestName mariadbPackages;
replicateUser = "replicate";
replicatePassword = "secret";
makeTest = import ./../make-test-python.nix;
2014-06-28 14:04:49 +00:00
makeReplicationTest = {
package,
name ? mkTestName package,
}: makeTest {
name = "${name}-replication";
meta = {
maintainers = lib.teams.helsinki-systems.members;
};
nodes = {
primary = {
services.mysql = {
inherit package;
enable = true;
replication.role = "master";
replication.slaveHost = "%";
replication.masterUser = replicateUser;
replication.masterPassword = replicatePassword;
initialDatabases = [ { name = "testdb"; schema = ./testdb.sql; } ];
};
networking.firewall.allowedTCPPorts = [ 3306 ];
};
secondary1 = { nodes, ... }: {
services.mysql = {
inherit package;
enable = true;
replication.role = "slave";
replication.serverId = 2;
replication.masterHost = nodes.primary.networking.hostName;
replication.masterUser = replicateUser;
replication.masterPassword = replicatePassword;
};
};
secondary2 = { nodes, ... }: {
services.mysql = {
inherit package;
enable = true;
replication.role = "slave";
replication.serverId = 3;
replication.masterHost = nodes.primary.networking.hostName;
replication.masterUser = replicateUser;
replication.masterPassword = replicatePassword;
};
};
};
testScript = ''
primary.start()
primary.wait_for_unit("mysql")
primary.wait_for_open_port(3306)
# Wait for testdb to be fully populated (5 rows).
primary.wait_until_succeeds(
"sudo -u mysql mysql -u mysql -D testdb -N -B -e 'select count(id) from tests' | grep -q 5"
)
secondary1.start()
secondary2.start()
secondary1.wait_for_unit("mysql")
secondary1.wait_for_open_port(3306)
secondary2.wait_for_unit("mysql")
secondary2.wait_for_open_port(3306)
# wait for replications to finish
secondary1.wait_until_succeeds(
"sudo -u mysql mysql -u mysql -D testdb -N -B -e 'select count(id) from tests' | grep -q 5"
)
secondary2.wait_until_succeeds(
"sudo -u mysql mysql -u mysql -D testdb -N -B -e 'select count(id) from tests' | grep -q 5"
)
secondary2.succeed("systemctl stop mysql")
primary.succeed(
"echo 'insert into testdb.tests values (123, 456);' | sudo -u mysql mysql -u mysql -N"
)
secondary2.succeed("systemctl start mysql")
secondary2.wait_for_unit("mysql")
secondary2.wait_for_open_port(3306)
secondary2.wait_until_succeeds(
"echo 'select * from testdb.tests where Id = 123;' | sudo -u mysql mysql -u mysql -N | grep 456"
)
'';
};
in
lib.mapAttrs (_: package: makeReplicationTest { inherit package; }) mariadbPackages