99 lines
3.9 KiB
Nix
99 lines
3.9 KiB
Nix
{ system ? builtins.currentSystem
|
|
, config ? { }
|
|
, pkgs ? import ../.. { inherit system config; } }:
|
|
|
|
with import ../lib/testing.nix { inherit system pkgs; };
|
|
with pkgs.lib;
|
|
|
|
let
|
|
makePostgresqlWalReceiverTest = subTestName: postgresqlPackage: let
|
|
|
|
postgresqlDataDir = "/var/db/postgresql/test";
|
|
replicationUser = "wal_receiver_user";
|
|
replicationSlot = "wal_receiver_slot";
|
|
replicationConn = "postgresql://${replicationUser}@localhost";
|
|
baseBackupDir = "/tmp/pg_basebackup";
|
|
walBackupDir = "/tmp/pg_wal";
|
|
atLeast12 = versionAtLeast postgresqlPackage.version "12.0";
|
|
restoreCommand = ''
|
|
restore_command = 'cp ${walBackupDir}/%f %p'
|
|
'';
|
|
|
|
recoveryFile = if atLeast12
|
|
then pkgs.writeTextDir "recovery.signal" ""
|
|
else pkgs.writeTextDir "recovery.conf" "${restoreCommand}";
|
|
|
|
in makeTest {
|
|
name = "postgresql-wal-receiver-${subTestName}";
|
|
meta.maintainers = with maintainers; [ pacien ];
|
|
|
|
machine = { ... }: {
|
|
services.postgresql = {
|
|
package = postgresqlPackage;
|
|
enable = true;
|
|
dataDir = postgresqlDataDir;
|
|
extraConfig = ''
|
|
wal_level = archive # alias for replica on pg >= 9.6
|
|
max_wal_senders = 10
|
|
max_replication_slots = 10
|
|
'' + optionalString atLeast12 ''
|
|
${restoreCommand}
|
|
recovery_end_command = 'touch recovery.done'
|
|
'';
|
|
authentication = ''
|
|
host replication ${replicationUser} all trust
|
|
'';
|
|
initialScript = pkgs.writeText "init.sql" ''
|
|
create user ${replicationUser} replication;
|
|
select * from pg_create_physical_replication_slot('${replicationSlot}');
|
|
'';
|
|
};
|
|
|
|
services.postgresqlWalReceiver.receivers.main = {
|
|
inherit postgresqlPackage;
|
|
connection = replicationConn;
|
|
slot = replicationSlot;
|
|
directory = walBackupDir;
|
|
};
|
|
# This is only to speedup test, it isn't time racing. Service is set to autorestart always,
|
|
# default 60sec is fine for real system, but is too much for a test
|
|
systemd.services.postgresql-wal-receiver-main.serviceConfig.RestartSec = mkForce 5;
|
|
};
|
|
|
|
testScript = ''
|
|
# make an initial base backup
|
|
$machine->waitForUnit('postgresql');
|
|
$machine->waitForUnit('postgresql-wal-receiver-main');
|
|
# WAL receiver healthchecks PG every 5 seconds, so let's be sure they have connected each other
|
|
# required only for 9.4
|
|
$machine->sleep(5);
|
|
$machine->succeed('${postgresqlPackage}/bin/pg_basebackup --dbname=${replicationConn} --pgdata=${baseBackupDir}');
|
|
|
|
# create a dummy table with 100 records
|
|
$machine->succeed('sudo -u postgres psql --command="create table dummy as select * from generate_series(1, 100) as val;"');
|
|
|
|
# stop postgres and destroy data
|
|
$machine->systemctl('stop postgresql');
|
|
$machine->systemctl('stop postgresql-wal-receiver-main');
|
|
$machine->succeed('rm -r ${postgresqlDataDir}/{base,global,pg_*}');
|
|
|
|
# restore the base backup
|
|
$machine->succeed('cp -r ${baseBackupDir}/* ${postgresqlDataDir} && chown postgres:postgres -R ${postgresqlDataDir}');
|
|
|
|
# prepare WAL and recovery
|
|
$machine->succeed('chmod a+rX -R ${walBackupDir}');
|
|
$machine->execute('for part in ${walBackupDir}/*.partial; do mv $part ''${part%%.*}; done'); # make use of partial segments too
|
|
$machine->succeed('cp ${recoveryFile}/* ${postgresqlDataDir}/ && chmod 666 ${postgresqlDataDir}/recovery*');
|
|
|
|
# replay WAL
|
|
$machine->systemctl('start postgresql');
|
|
$machine->waitForFile('${postgresqlDataDir}/recovery.done');
|
|
$machine->systemctl('restart postgresql');
|
|
$machine->waitForUnit('postgresql');
|
|
|
|
# check that our records have been restored
|
|
$machine->succeed('test $(sudo -u postgres psql --pset="pager=off" --tuples-only --command="select count(distinct val) from dummy;") -eq 100');
|
|
'';
|
|
};
|
|
|
|
in mapAttrs makePostgresqlWalReceiverTest (import ../../pkgs/servers/sql/postgresql pkgs)
|