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postgresql: add backup and restore

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This commit is contained in:
Jörg Thalheim
2024-06-05 18:37:31 +02:00
parent c0d8aaf73a
commit 0dc3b9f056
6 changed files with 171 additions and 75 deletions
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61
checks/postgresql/default.nix
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@@ -1,22 +1,51 @@
(import ../lib/container-test.nix) (
{
name = "postgresql";
(import ../lib/container-test.nix) ({
name = "postgresql";
nodes.machine = { self, ... }:
{
imports = [
self.nixosModules.clanCore
self.clanModules.postgresql
self.clanModules.localbackup
];
clan.postgresl.databases.test = {};
clan.localbackup.targets.hdd.directory = "/mnt/external-disk";
};
testScript = ''
nodes.machine =
{ self, config, ... }:
{
imports = [
self.nixosModules.clanCore
self.clanModules.postgresql
self.clanModules.localbackup
];
clan.postgresql.users.test = { };
clan.postgresql.databases.test.create.options.OWNER = "test";
clan.localbackup.targets.hdd.directory = "/mnt/external-disk";
environment.systemPackages = [ config.services.postgresql.package ];
};
testScript =
{ nodes, ... }:
''
start_all()
machine.succeed("systemctl status postgresql")
machine.wait_for_unit("postgresql")
# 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")
machine.succeed("ls -la /var/backups/postgresql")
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("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("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("""
set -x
${nodes.machine.clanCore.state.postgresql-test.postRestoreCommand}
""")
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")
# 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'\"")
owner = output.split("\n")[1]
assert owner == "test", f"Expected database owner to be 'test', got '{owner}'"
'';
})