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backup: add a way to stop services before restoring a state.

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This commit is contained in:
Jörg Thalheim
2024-06-06 15:17:47 +02:00
parent 46530a0a9c
commit 70c86efe6f
3 changed files with 47 additions and 14 deletions
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22
checks/postgresql/default.nix
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@@ -11,8 +11,19 @@
];
clan.postgresql.users.test = { };
clan.postgresql.databases.test.create.options.OWNER = "test";
clan.postgresql.databases.test.restore.stopOnRestore = [ "sample-service" ];
clan.localbackup.targets.hdd.directory = "/mnt/external-disk";
systemd.services.sample-service = {
wantedBy = [ "multi-user.target" ];
script = ''
while true; do
echo "Hello, world!"
sleep 5
done
'';
};
environment.systemPackages = [ config.services.postgresql.package ];
};
testScript =
@@ -20,20 +31,22 @@
''
start_all()
machine.wait_for_unit("postgresql")
machine.wait_for_unit("sample-service")
# Create a test table
machine.succeed("runuser -u postgres -- /run/current-system/sw/bin/psql -c 'CREATE TABLE test (id serial PRIMARY KEY);' test")
machine.succeed("/run/current-system/sw/bin/localbackup-create >&2")
timestamp_before = int(machine.succeed("systemctl show --property=ExecMainStartTimestampMonotonic sample-service | cut -d= -f2").strip())
machine.succeed("test -e /mnt/external-disk/snapshot.0/machine/var/backup/postgres/test/dump.sql.zstd || { echo 'dump.sql.zstd not found'; exit 1; }")
machine.succeed("test -e /mnt/external-disk/snapshot.0/machine/var/backup/postgres/test/pg-dump || { echo 'pg-dump not found'; exit 1; }")
machine.succeed("runuser -u postgres -- /run/current-system/sw/bin/psql -d test -c 'INSERT INTO test DEFAULT VALUES;'")
machine.succeed("runuser -u postgres -- /run/current-system/sw/bin/psql -d test -c 'DROP TABLE test;'")
machine.succeed("test -e /var/backup/postgres/test/dump.sql.zstd || { echo 'backup.info not found'; exit 1; }")
machine.succeed("test -e /var/backup/postgres/test/pg-dump || { echo 'pg-dump not found'; exit 1; }")
machine.succeed("rm -rf /var/backup/postgres")
machine.succeed("NAME=/mnt/external-disk/snapshot.0 FOLDERS=/var/backup/postgres/test /run/current-system/sw/bin/localbackup-restore >&2")
machine.succeed("test -e /var/backup/postgres/test/dump.sql.zstd || { echo 'backup.info not found'; exit 1; }")
machine.succeed("test -e /var/backup/postgres/test/pg-dump || { echo 'pg-dump not found'; exit 1; }")
machine.succeed("""
set -x
@@ -42,6 +55,9 @@
machine.succeed("runuser -u postgres -- /run/current-system/sw/bin/psql -l >&2")
machine.succeed("runuser -u postgres -- /run/current-system/sw/bin/psql -d test -c '\dt' >&2")
timestamp_after = int(machine.succeed("systemctl show --property=ExecMainStartTimestampMonotonic sample-service | cut -d= -f2").strip())
assert timestamp_before < timestamp_after, f"{timestamp_before} >= {timestamp_after}: expected sample-service to be restarted after restore"
# Check that the table is still there
machine.succeed("runuser -u postgres -- /run/current-system/sw/bin/psql -d test -c 'SELECT * FROM test;'")
output = machine.succeed("runuser -u postgres -- /run/current-system/sw/bin/psql --csv -c \"SELECT datdba::regrole FROM pg_database WHERE datname = 'test'\"")