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LangBot/tests/integration/persistence/test_release_migration_postgres.py
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Python

"""Real PostgreSQL coverage for the one-shot Cloud release migration job."""
from __future__ import annotations
import logging
import os
import uuid
from types import SimpleNamespace
import pytest
import sqlalchemy as sa
from sqlalchemy import text
from sqlalchemy.ext.asyncio import AsyncEngine, create_async_engine
from langbot.pkg.persistence import release_migration
from langbot.pkg.persistence.alembic_runner import (
get_alembic_current,
get_alembic_head,
run_alembic_stamp,
run_alembic_upgrade,
)
from langbot.pkg.persistence.mgr import (
PersistenceManager,
PersistenceMode,
_RELEASE_MIGRATION_ADVISORY_LOCK_ID,
)
from langbot.pkg.utils import constants
pytestmark = [pytest.mark.integration, pytest.mark.slow, pytest.mark.asyncio]
_RUNTIME_PASSWORD = 'runtime-secret-not-used-by-migration'
@pytest.fixture
def postgres_url() -> str:
url = os.environ.get('TEST_POSTGRES_URL')
if not url:
pytest.skip('TEST_POSTGRES_URL not set')
return url
@pytest.fixture
async def postgres_engine(postgres_url: str):
engine = create_async_engine(postgres_url, isolation_level='AUTOCOMMIT')
yield engine
await engine.dispose()
@pytest.fixture
async def clean_database(postgres_engine: AsyncEngine):
async def clean() -> None:
async with postgres_engine.begin() as conn:
table_names = await conn.run_sync(lambda sync_conn: sa.inspect(sync_conn).get_table_names())
quote = postgres_engine.dialect.identifier_preparer.quote
for table_name in table_names:
await conn.execute(text(f'DROP TABLE {quote(table_name)} CASCADE'))
await clean()
yield
await clean()
def _restore_postgres_registry(monkeypatch) -> None:
from langbot.pkg.persistence import mgr as persistence_mgr_module
from langbot.pkg.persistence.databases.postgresql import PostgreSQLDatabaseManager
monkeypatch.setattr(
persistence_mgr_module.database,
'preregistered_managers',
[PostgreSQLDatabaseManager],
)
def _application(postgres_url: str, *, runtime_role: str = 'langbot_runtime_not_used_by_migration') -> SimpleNamespace:
url = sa.engine.make_url(postgres_url)
return SimpleNamespace(
instance_config=SimpleNamespace(
data={
'database': {
'use': 'postgresql',
'postgresql': {
'host': url.host,
'port': url.port,
# This is deliberately not the operator role in the DSN.
'user': runtime_role,
'password': _RUNTIME_PASSWORD,
'database': url.database,
},
'cloud_migration': {'operator_dsn_env': 'TEST_RELEASE_OPERATOR_DSN'},
},
'vdb': {
'use': 'pgvector',
'pgvector': {
'use_business_database': True,
'allowed_dimensions': [384, 512, 768, 1024, 1536],
},
},
}
),
logger=logging.getLogger('cloud-release-migration-entrypoint-test'),
persistence_mgr=None,
)
async def test_release_entrypoint_holds_lock_migrates_validates_and_disposes(
postgres_url: str,
postgres_engine: AsyncEngine,
clean_database,
monkeypatch,
) -> None:
_restore_postgres_registry(monkeypatch)
monkeypatch.setattr(constants, 'instance_id', 'release-migration-entrypoint-test')
original_validate = PersistenceManager._validate_release_schema
validation_observed_lock = False
runtime_role = f'lb_release_runtime_{uuid.uuid4().hex[:12]}'
quote = postgres_engine.dialect.identifier_preparer.quote
async def validate_while_asserting_lock(self: PersistenceManager) -> None:
nonlocal validation_observed_lock
async with postgres_engine.connect() as conn:
acquired = await conn.scalar(
text('SELECT pg_try_advisory_lock(:lock_id)'),
{'lock_id': _RELEASE_MIGRATION_ADVISORY_LOCK_ID},
)
if acquired:
await conn.scalar(
text('SELECT pg_advisory_unlock(:lock_id)'),
{'lock_id': _RELEASE_MIGRATION_ADVISORY_LOCK_ID},
)
assert acquired is False
validation_observed_lock = True
await original_validate(self)
monkeypatch.setattr(PersistenceManager, '_validate_release_schema', validate_while_asserting_lock)
async with postgres_engine.connect() as conn:
await conn.execute(text(f"CREATE ROLE {quote(runtime_role)} LOGIN PASSWORD '{_RUNTIME_PASSWORD}'"))
# The release job must make this otherwise bare LOGIN usable without
# relying on pre-provisioned object ACLs.
assert (
await conn.scalar(
text(
"""
SELECT NOT EXISTS (
SELECT 1
FROM pg_class c
JOIN pg_namespace n ON n.oid = c.relnamespace
CROSS JOIN LATERAL aclexplode(c.relacl) acl
JOIN pg_roles grantee ON grantee.oid = acl.grantee
WHERE n.nspname = current_schema()
AND grantee.rolname = :runtime_role
)
"""
),
{'runtime_role': runtime_role},
)
is True
)
ap = _application(postgres_url, runtime_role=runtime_role)
try:
await release_migration.run_cloud_release_migration(
ap,
environ={'TEST_RELEASE_OPERATOR_DSN': postgres_url},
)
assert validation_observed_lock is True
assert await get_alembic_current(postgres_engine) == get_alembic_head()
manager = ap.persistence_mgr
assert isinstance(manager, PersistenceManager)
business_tables = set(manager._runtime_business_table_names())
async with postgres_engine.connect() as conn:
assert await conn.scalar(text("SELECT to_regclass('langbot_vectors') IS NOT NULL")) is True
assert (
await conn.scalar(text("SELECT EXISTS (SELECT 1 FROM pg_extension WHERE extname = 'vector')")) is True
)
runtime_role_state = (
(
await conn.execute(
text(
"""
SELECT
rolcanlogin,
rolsuper,
rolbypassrls,
rolcreatedb,
rolcreaterole,
rolreplication
FROM pg_roles
WHERE rolname = :runtime_role
"""
),
{'runtime_role': runtime_role},
)
)
.mappings()
.one()
)
assert dict(runtime_role_state) == {
'rolcanlogin': True,
'rolsuper': False,
'rolbypassrls': False,
'rolcreatedb': False,
'rolcreaterole': False,
'rolreplication': False,
}
database_privileges = set(
(
await conn.execute(
text(
"""
SELECT acl.privilege_type
FROM pg_database database
CROSS JOIN LATERAL aclexplode(database.datacl) acl
JOIN pg_roles grantee ON grantee.oid = acl.grantee
WHERE database.datname = current_database()
AND grantee.rolname = :runtime_role
AND acl.is_grantable IS FALSE
"""
),
{'runtime_role': runtime_role},
)
)
.scalars()
.all()
)
schema_privileges = set(
(
await conn.execute(
text(
"""
SELECT acl.privilege_type
FROM pg_namespace namespace
CROSS JOIN LATERAL aclexplode(namespace.nspacl) acl
JOIN pg_roles grantee ON grantee.oid = acl.grantee
WHERE namespace.nspname = current_schema()
AND grantee.rolname = :runtime_role
AND acl.is_grantable IS FALSE
"""
),
{'runtime_role': runtime_role},
)
)
.scalars()
.all()
)
assert database_privileges == {'CONNECT'}
assert schema_privileges == {'USAGE'}
assert (
await conn.scalar(
text("SELECT has_database_privilege(:runtime_role, current_database(), 'CREATE')"),
{'runtime_role': runtime_role},
)
is False
)
assert (
await conn.scalar(
text("SELECT has_schema_privilege(:runtime_role, current_schema(), 'CREATE')"),
{'runtime_role': runtime_role},
)
is False
)
# PostgreSQL grants TEMP to PUBLIC by default. The first Cloud
# release deliberately tolerates that inherited compatibility
# privilege while granting no direct TEMP ACL to the runtime role.
assert (
await conn.scalar(
text("SELECT has_database_privilege(:runtime_role, current_database(), 'TEMP')"),
{'runtime_role': runtime_role},
)
is True
)
object_grants = (
(
await conn.execute(
text(
"""
SELECT
c.relname,
c.relkind::text AS relkind,
acl.privilege_type,
acl.is_grantable
FROM pg_class c
JOIN pg_namespace n ON n.oid = c.relnamespace
CROSS JOIN LATERAL aclexplode(c.relacl) acl
JOIN pg_roles grantee ON grantee.oid = acl.grantee
WHERE n.nspname = current_schema()
AND c.relkind IN ('r', 'p', 'S')
AND grantee.rolname = :runtime_role
ORDER BY c.relname, acl.privilege_type
"""
),
{'runtime_role': runtime_role},
)
)
.mappings()
.all()
)
direct_table_grants: dict[str, set[str]] = {}
direct_sequence_grants: dict[str, set[str]] = {}
for grant in object_grants:
assert grant['is_grantable'] is False
target = direct_sequence_grants if grant['relkind'] == 'S' else direct_table_grants
target.setdefault(grant['relname'], set()).add(grant['privilege_type'])
assert set(direct_table_grants) == business_tables | {'alembic_version'}
assert all(
privileges == {'SELECT', 'INSERT', 'UPDATE', 'DELETE'}
for table_name, privileges in direct_table_grants.items()
if table_name != 'alembic_version'
)
assert direct_table_grants['alembic_version'] == {'SELECT'}
assert direct_sequence_grants
assert all(privileges == {'USAGE', 'SELECT'} for privileges in direct_sequence_grants.values())
# The session-level lock must be released before the one-shot job exits.
assert (
await conn.scalar(
text('SELECT pg_try_advisory_lock(:lock_id)'),
{'lock_id': _RELEASE_MIGRATION_ADVISORY_LOCK_ID},
)
is True
)
assert (
await conn.scalar(
text('SELECT pg_advisory_unlock(:lock_id)'),
{'lock_id': _RELEASE_MIGRATION_ADVISORY_LOCK_ID},
)
is True
)
runtime_url = (
sa.engine.make_url(postgres_url)
.set(username=runtime_role, password=_RUNTIME_PASSWORD)
.render_as_string(hide_password=False)
)
runtime_engine = create_async_engine(runtime_url)
try:
async with runtime_engine.begin() as conn:
assert await conn.scalar(text('SELECT current_user')) == runtime_role
await conn.execute(text("INSERT INTO metadata (key, value) VALUES ('runtime-grant-smoke', 'created')"))
await conn.execute(text("UPDATE metadata SET value = 'updated' WHERE key = 'runtime-grant-smoke'"))
assert (
await conn.scalar(text("SELECT value FROM metadata WHERE key = 'runtime-grant-smoke'")) == 'updated'
)
await conn.execute(text("DELETE FROM metadata WHERE key = 'runtime-grant-smoke'"))
await conn.scalar(
text('SELECT nextval(CAST(:sequence_name AS regclass))'),
{'sequence_name': f'public.{sorted(direct_sequence_grants)[0]}'},
)
finally:
await runtime_engine.dispose()
runtime_application = _application(postgres_url, runtime_role=runtime_role)
runtime_manager = PersistenceManager(runtime_application, mode=PersistenceMode.CLOUD_RUNTIME)
runtime_application.persistence_mgr = runtime_manager
try:
# This reads alembic_version as the actual runtime role and then
# reruns the complete grant/catalog validator before startup.
await runtime_manager.initialize()
finally:
await runtime_manager.get_db_engine().dispose()
# The catalog validator must fail closed if the role is no longer
# deployable, even though the remaining grants still look plausible.
async with postgres_engine.connect() as conn:
await conn.execute(text(f'REVOKE DELETE ON TABLE public.metadata FROM {quote(runtime_role)}'))
with pytest.raises(RuntimeError, match="table 'metadata' grants are incomplete"):
await manager._validate_configured_runtime_postgres_role(require_grants=True)
finally:
async with postgres_engine.connect() as conn:
await conn.execute(text(f'DROP OWNED BY {quote(runtime_role)}'))
await conn.execute(text(f'DROP ROLE IF EXISTS {quote(runtime_role)}'))
async def test_release_entrypoint_rejects_privileged_or_table_owning_runtime_role(
postgres_url: str,
postgres_engine: AsyncEngine,
clean_database,
monkeypatch,
) -> None:
_restore_postgres_registry(monkeypatch)
monkeypatch.setattr(constants, 'instance_id', 'release-runtime-role-validation-test')
runtime_role = f'lb_release_runtime_{uuid.uuid4().hex[:12]}'
quote = postgres_engine.dialect.identifier_preparer.quote
async with postgres_engine.connect() as conn:
operator_role = await conn.scalar(text('SELECT current_user'))
await conn.execute(text(f'CREATE ROLE {quote(runtime_role)} LOGIN'))
ap = _application(postgres_url, runtime_role=runtime_role)
try:
await release_migration.run_cloud_release_migration(
ap,
environ={'TEST_RELEASE_OPERATOR_DSN': postgres_url},
)
async with postgres_engine.connect() as conn:
await conn.execute(text(f'ALTER ROLE {quote(runtime_role)} SUPERUSER'))
with pytest.raises(RuntimeError, match='must not be superuser or BYPASSRLS'):
await release_migration.run_cloud_release_migration(
ap,
environ={'TEST_RELEASE_OPERATOR_DSN': postgres_url},
)
async with postgres_engine.connect() as conn:
await conn.execute(text(f'ALTER ROLE {quote(runtime_role)} NOSUPERUSER BYPASSRLS'))
with pytest.raises(RuntimeError, match='must not be superuser or BYPASSRLS'):
await release_migration.run_cloud_release_migration(
ap,
environ={'TEST_RELEASE_OPERATOR_DSN': postgres_url},
)
async with postgres_engine.connect() as conn:
await conn.execute(text(f'ALTER ROLE {quote(runtime_role)} NOBYPASSRLS'))
await conn.execute(text(f'ALTER TABLE bots OWNER TO {quote(runtime_role)}'))
with pytest.raises(RuntimeError, match='owns tenant tables'):
await release_migration.run_cloud_release_migration(
ap,
environ={'TEST_RELEASE_OPERATOR_DSN': postgres_url},
)
finally:
async with postgres_engine.connect() as conn:
table_exists = await conn.scalar(text("SELECT to_regclass('bots') IS NOT NULL"))
if table_exists:
await conn.execute(text(f'ALTER TABLE bots OWNER TO {quote(operator_role)}'))
await conn.execute(text(f'DROP OWNED BY {quote(runtime_role)}'))
await conn.execute(text(f'DROP ROLE IF EXISTS {quote(runtime_role)}'))
async def test_runtime_role_catalog_validator_rejects_delegation_and_escape_hatches(
postgres_url: str,
postgres_engine: AsyncEngine,
clean_database,
monkeypatch,
) -> None:
_restore_postgres_registry(monkeypatch)
monkeypatch.setattr(constants, 'instance_id', 'release-runtime-role-catalog-test')
suffix = uuid.uuid4().hex[:12]
runtime_role = f'lb_release_runtime_{suffix}'
delegated_role = f'lb_release_delegate_{suffix}'
extra_schema = f'lb_release_schema_{suffix}'
extra_view = f'lb_release_view_{suffix}'
owned_routine = f'lb_release_owned_routine_{suffix}'
security_definer = f'lb_release_definer_{suffix}'
foreign_wrapper = f'lb_release_fdw_{suffix}'
foreign_server = f'lb_release_server_{suffix}'
persistent_setting_secret = f'lb_release_secret_{suffix}'
database_name = sa.engine.make_url(postgres_url).database
assert database_name
quote = postgres_engine.dialect.identifier_preparer.quote
async with postgres_engine.connect() as conn:
await conn.execute(text(f"CREATE ROLE {quote(runtime_role)} LOGIN PASSWORD '{_RUNTIME_PASSWORD}'"))
await conn.execute(text(f'CREATE ROLE {quote(delegated_role)}'))
ap = _application(postgres_url, runtime_role=runtime_role)
try:
await release_migration.run_cloud_release_migration(
ap,
environ={'TEST_RELEASE_OPERATOR_DSN': postgres_url},
)
manager = ap.persistence_mgr
assert isinstance(manager, PersistenceManager)
async with postgres_engine.connect() as conn:
await conn.execute(text(f'GRANT pg_read_all_data TO {quote(runtime_role)}'))
with pytest.raises(RuntimeError, match='must not participate in role memberships'):
await manager._validate_configured_runtime_postgres_role()
async with postgres_engine.connect() as conn:
await conn.execute(text(f'REVOKE pg_read_all_data FROM {quote(runtime_role)}'))
# Reject delegation in the other direction too: no role may be
# allowed to SET ROLE to the runtime identity or administer it.
await conn.execute(text(f'GRANT {quote(runtime_role)} TO {quote(delegated_role)} WITH ADMIN OPTION'))
with pytest.raises(RuntimeError, match='must not participate in role memberships'):
await manager._validate_configured_runtime_postgres_role()
async with postgres_engine.connect() as conn:
await conn.execute(text(f'REVOKE {quote(runtime_role)} FROM {quote(delegated_role)}'))
await conn.execute(
text(f'GRANT SELECT ON TABLE public.metadata TO {quote(runtime_role)} WITH GRANT OPTION')
)
with pytest.raises(RuntimeError, match='GRANT OPTION'):
await manager._validate_configured_runtime_postgres_role()
async with postgres_engine.connect() as conn:
await conn.execute(
text(f'REVOKE GRANT OPTION FOR SELECT ON TABLE public.metadata FROM {quote(runtime_role)}')
)
await conn.execute(text(f'ALTER ROLE {quote(runtime_role)} SET search_path TO public'))
with pytest.raises(RuntimeError, match='persistent session overrides'):
await manager._validate_configured_runtime_postgres_role()
async with postgres_engine.connect() as conn:
await conn.execute(text(f'ALTER ROLE {quote(runtime_role)} RESET search_path'))
await conn.execute(text(f'ALTER DATABASE {quote(database_name)} SET search_path TO public'))
with pytest.raises(RuntimeError, match='persistent session overrides'):
await manager._validate_configured_runtime_postgres_role()
async with postgres_engine.connect() as conn:
await conn.execute(text(f'ALTER DATABASE {quote(database_name)} RESET search_path'))
await conn.execute(text(f'ALTER ROLE {quote(runtime_role)} SET session_replication_role TO replica'))
with pytest.raises(RuntimeError, match='persistent session overrides'):
await manager._validate_configured_runtime_postgres_role()
async with postgres_engine.connect() as conn:
await conn.execute(text(f'ALTER ROLE {quote(runtime_role)} RESET session_replication_role'))
await conn.execute(
text(f"ALTER ROLE {quote(runtime_role)} SET application_name TO '{persistent_setting_secret}'")
)
with pytest.raises(RuntimeError, match='persistent session overrides') as error:
await manager._validate_configured_runtime_postgres_role()
assert persistent_setting_secret not in str(error.value)
async with postgres_engine.connect() as conn:
await conn.execute(text(f'ALTER ROLE {quote(runtime_role)} RESET application_name'))
await conn.execute(text('CREATE EXTENSION dblink'))
with pytest.raises(RuntimeError, match='extensions must include vector and be limited'):
await manager._validate_configured_runtime_postgres_role()
async with postgres_engine.connect() as conn:
await conn.execute(text('DROP EXTENSION dblink'))
await manager._validate_configured_runtime_postgres_role()
async with postgres_engine.connect() as conn:
await conn.execute(text(f'GRANT CREATE ON DATABASE {quote(database_name)} TO {quote(runtime_role)}'))
await conn.execute(text(f'GRANT CREATE ON SCHEMA public TO {quote(runtime_role)}'))
runtime_url = (
sa.engine.make_url(postgres_url)
.set(username=runtime_role, password=_RUNTIME_PASSWORD)
.render_as_string(hide_password=False)
)
runtime_engine = create_async_engine(runtime_url)
try:
async with runtime_engine.begin() as conn:
# hstore is a trusted extension in the production PG16 image,
# so this creates a real runtime-owned extension catalog row.
await conn.execute(text('CREATE EXTENSION hstore'))
finally:
await runtime_engine.dispose()
async with postgres_engine.connect() as conn:
await conn.execute(text(f'REVOKE CREATE ON SCHEMA public FROM {quote(runtime_role)}'))
await conn.execute(text(f'REVOKE CREATE ON DATABASE {quote(database_name)} FROM {quote(runtime_role)}'))
with pytest.raises(RuntimeError, match='must not own extensions'):
await manager._validate_configured_runtime_postgres_role()
async with postgres_engine.connect() as conn:
await conn.execute(text('DROP EXTENSION hstore CASCADE'))
await manager._validate_configured_runtime_postgres_role()
async with postgres_engine.connect() as conn:
await conn.execute(text(f'CREATE FOREIGN DATA WRAPPER {quote(foreign_wrapper)}'))
await conn.execute(
text(f'CREATE SERVER {quote(foreign_server)} FOREIGN DATA WRAPPER {quote(foreign_wrapper)}')
)
await conn.execute(text(f'CREATE USER MAPPING FOR {quote(runtime_role)} SERVER {quote(foreign_server)}'))
with pytest.raises(RuntimeError, match='foreign data wrappers, servers, or user mappings'):
await manager._validate_configured_runtime_postgres_role()
async with postgres_engine.connect() as conn:
await conn.execute(text(f'DROP FOREIGN DATA WRAPPER {quote(foreign_wrapper)} CASCADE'))
await manager._validate_configured_runtime_postgres_role()
async with postgres_engine.connect() as conn:
await conn.execute(text(f'CREATE SCHEMA {quote(extra_schema)} AUTHORIZATION {quote(runtime_role)}'))
with pytest.raises(RuntimeError, match='non-business schemas'):
await manager._validate_configured_runtime_postgres_role()
async with postgres_engine.connect() as conn:
await conn.execute(text(f'DROP SCHEMA {quote(extra_schema)} CASCADE'))
await conn.execute(text(f'CREATE VIEW public.{quote(extra_view)} AS SELECT key FROM public.metadata'))
await conn.execute(text(f'GRANT SELECT ON public.{quote(extra_view)} TO {quote(runtime_role)}'))
with pytest.raises(RuntimeError, match='non-business objects|table privileges are unsafe'):
await manager._validate_configured_runtime_postgres_role()
async with postgres_engine.connect() as conn:
await conn.execute(text(f'DROP VIEW public.{quote(extra_view)}'))
await conn.execute(text(f'GRANT SELECT (key) ON public.metadata TO {quote(runtime_role)}'))
with pytest.raises(RuntimeError, match='column-level ACLs'):
await manager._validate_configured_runtime_postgres_role()
async with postgres_engine.connect() as conn:
await conn.execute(text(f'REVOKE SELECT (key) ON public.metadata FROM {quote(runtime_role)}'))
# System file access functions are not SECURITY DEFINER, so the
# validator must reject their explicit EXECUTE ACL independently.
await conn.execute(
text(f'GRANT EXECUTE ON FUNCTION pg_catalog.pg_read_file(text) TO {quote(runtime_role)}')
)
runtime_application = _application(postgres_url, runtime_role=runtime_role)
runtime_manager = PersistenceManager(runtime_application, mode=PersistenceMode.CLOUD_RUNTIME)
runtime_application.persistence_mgr = runtime_manager
try:
with pytest.raises(RuntimeError, match='explicit EXECUTE privileges on routines'):
await runtime_manager.initialize()
finally:
await runtime_manager.get_db_engine().dispose()
async with postgres_engine.connect() as conn:
await conn.execute(
text(f'REVOKE EXECUTE ON FUNCTION pg_catalog.pg_read_file(text) FROM {quote(runtime_role)}')
)
await manager._validate_configured_runtime_postgres_role()
async with postgres_engine.connect() as conn:
# replica disables ordinary triggers/rules and foreign-key
# enforcement; it must never reach the runtime identity.
await conn.execute(text(f'GRANT SET ON PARAMETER session_replication_role TO {quote(runtime_role)}'))
with pytest.raises(RuntimeError, match='explicit SET or ALTER SYSTEM parameter privileges'):
await manager._validate_configured_runtime_postgres_role()
async with postgres_engine.connect() as conn:
await conn.execute(text(f'REVOKE SET ON PARAMETER session_replication_role FROM {quote(runtime_role)}'))
await manager._validate_configured_runtime_postgres_role()
async with postgres_engine.connect() as conn:
await conn.execute(
text(f"CREATE FUNCTION public.{quote(owned_routine)}() RETURNS integer LANGUAGE sql AS 'SELECT 1'")
)
await conn.execute(text(f'ALTER FUNCTION public.{quote(owned_routine)}() OWNER TO {quote(runtime_role)}'))
with pytest.raises(RuntimeError, match='must not own routines'):
await manager._validate_configured_runtime_postgres_role()
async with postgres_engine.connect() as conn:
await conn.execute(text(f'DROP FUNCTION public.{quote(owned_routine)}()'))
async with postgres_engine.connect() as conn:
await conn.execute(
text(
f'CREATE FUNCTION public.{quote(security_definer)}() RETURNS integer '
"LANGUAGE sql SECURITY DEFINER AS 'SELECT 1'"
)
)
# Extension membership must not exempt an executable definer from
# the runtime audit, even for an allowlisted extension.
await conn.execute(text(f'ALTER EXTENSION vector ADD FUNCTION public.{quote(security_definer)}()'))
with pytest.raises(RuntimeError, match='SECURITY DEFINER'):
await manager._validate_configured_runtime_postgres_role()
async with postgres_engine.connect() as conn:
await conn.execute(text(f'ALTER EXTENSION vector DROP FUNCTION public.{quote(security_definer)}()'))
finally:
async with postgres_engine.connect() as conn:
await conn.execute(text(f'ALTER DATABASE {quote(database_name)} RESET search_path'))
await conn.execute(text(f'ALTER ROLE {quote(runtime_role)} RESET search_path'))
await conn.execute(text(f'ALTER ROLE {quote(runtime_role)} RESET session_replication_role'))
await conn.execute(text(f'ALTER ROLE {quote(runtime_role)} RESET application_name'))
await conn.execute(text(f'REVOKE pg_read_all_data FROM {quote(runtime_role)}'))
await conn.execute(text(f'REVOKE {quote(runtime_role)} FROM {quote(delegated_role)}'))
await conn.execute(text(f'REVOKE CREATE ON SCHEMA public FROM {quote(runtime_role)}'))
await conn.execute(text(f'REVOKE CREATE ON DATABASE {quote(database_name)} FROM {quote(runtime_role)}'))
await conn.execute(
text(f'REVOKE EXECUTE ON FUNCTION pg_catalog.pg_read_file(text) FROM {quote(runtime_role)}')
)
await conn.execute(text(f'REVOKE SET ON PARAMETER session_replication_role FROM {quote(runtime_role)}'))
await conn.execute(text('DROP EXTENSION IF EXISTS dblink CASCADE'))
await conn.execute(text('DROP EXTENSION IF EXISTS hstore CASCADE'))
await conn.execute(text(f'DROP FOREIGN DATA WRAPPER IF EXISTS {quote(foreign_wrapper)} CASCADE'))
await conn.execute(text(f'DROP FUNCTION IF EXISTS public.{quote(owned_routine)}()'))
security_definer_is_extension_member = await conn.scalar(
text(
"""
SELECT EXISTS (
SELECT 1
FROM pg_depend dependency
JOIN pg_extension extension ON extension.oid = dependency.refobjid
WHERE dependency.classid = 'pg_proc'::regclass
AND dependency.objid = to_regprocedure(:routine)
AND dependency.refclassid = 'pg_extension'::regclass
AND dependency.deptype = 'e'
AND extension.extname = 'vector'
)
"""
),
{'routine': f'public.{security_definer}()'},
)
if security_definer_is_extension_member:
await conn.execute(text(f'ALTER EXTENSION vector DROP FUNCTION public.{quote(security_definer)}()'))
await conn.execute(text(f'DROP FUNCTION IF EXISTS public.{quote(security_definer)}()'))
await conn.execute(text(f'DROP VIEW IF EXISTS public.{quote(extra_view)}'))
await conn.execute(text(f'DROP SCHEMA IF EXISTS {quote(extra_schema)} CASCADE'))
await conn.execute(text(f'DROP OWNED BY {quote(runtime_role)}'))
await conn.execute(text(f'DROP ROLE IF EXISTS {quote(delegated_role)}'))
await conn.execute(text(f'DROP ROLE IF EXISTS {quote(runtime_role)}'))
async def test_direct_postgres_head_stamp_fails_without_business_schema(
postgres_engine: AsyncEngine,
clean_database,
) -> None:
await run_alembic_stamp(postgres_engine, '0012_plugin_identity')
with pytest.raises(RuntimeError, match='requires the knowledge_bases table'):
await run_alembic_upgrade(postgres_engine)
assert await get_alembic_current(postgres_engine) == '0012_plugin_identity'
async def test_release_entrypoint_fails_immediately_when_another_job_holds_lock(
postgres_url: str,
postgres_engine: AsyncEngine,
clean_database,
monkeypatch,
) -> None:
_restore_postgres_registry(monkeypatch)
ap = _application(postgres_url)
async with postgres_engine.connect() as lock_connection:
assert (
await lock_connection.scalar(
text('SELECT pg_try_advisory_lock(:lock_id)'),
{'lock_id': _RELEASE_MIGRATION_ADVISORY_LOCK_ID},
)
is True
)
try:
with pytest.raises(RuntimeError, match='already holds the advisory lock'):
await release_migration.run_cloud_release_migration(
ap,
environ={'TEST_RELEASE_OPERATOR_DSN': postgres_url},
)
finally:
assert (
await lock_connection.scalar(
text('SELECT pg_advisory_unlock(:lock_id)'),
{'lock_id': _RELEASE_MIGRATION_ADVISORY_LOCK_ID},
)
is True
)
async with postgres_engine.connect() as conn:
assert await conn.run_sync(lambda sync_conn: sa.inspect(sync_conn).get_table_names()) == []