FATAL: password authentication failed for user "postgres"

Hi all,

while deploying rasa-x on a Kubernetes Service (IBM) I got the following authentication error:

Traceback (most recent call last):
  File "/usr/local/lib/python3.7/runpy.py", line 193, in _run_module_as_main
    "__main__", mod_spec)
  File "/usr/local/lib/python3.7/runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "/usr/local/lib/python3.7/site-packages/rasax/community/__main__.py", line 19, in <module>
    main()
  File "/usr/local/lib/python3.7/site-packages/rasax/community/server.py", line 29, in main
    sql_migrations.run_migrations(session)
  File "/usr/local/lib/python3.7/site-packages/rasax/community/sql_migrations.py", line 25, in run_migrations
    _run_schema_migrations(session)
  File "/usr/local/lib/python3.7/site-packages/rasax/community/sql_migrations.py", line 41, in _run_schema_migrations
    _run_alembic_migration(alembic_config)
  File "/usr/local/lib/python3.7/site-packages/rasax/community/sql_migrations.py", line 65, in _run_alembic_migration
    command.upgrade(alembic_config, target_revision)
  File "/usr/local/lib/python3.7/site-packages/alembic/command.py", line 298, in upgrade
    script.run_env()
  File "/usr/local/lib/python3.7/site-packages/alembic/script/base.py", line 489, in run_env
    util.load_python_file(self.dir, "env.py")
  File "/usr/local/lib/python3.7/site-packages/alembic/util/pyfiles.py", line 98, in load_python_file
    module = load_module_py(module_id, path)
  File "/usr/local/lib/python3.7/site-packages/alembic/util/compat.py", line 184, in load_module_py
    spec.loader.exec_module(module)
  File "<frozen importlib._bootstrap_external>", line 728, in exec_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "/usr/local/lib/python3.7/site-packages/rasax/community/database/schema_migrations/alembic/env.py", line 96, in <module>
    run_migrations_online()
  File "/usr/local/lib/python3.7/site-packages/rasax/community/database/schema_migrations/alembic/env.py", line 68, in run_migrations_online
    with connectable.connect() as connection:
  File "/usr/local/lib/python3.7/site-packages/sqlalchemy/engine/base.py", line 2266, in connect
    return self._connection_cls(self, **kwargs)
  File "/usr/local/lib/python3.7/site-packages/sqlalchemy/engine/base.py", line 104, in __init__
    else engine.raw_connection()
  File "/usr/local/lib/python3.7/site-packages/sqlalchemy/engine/base.py", line 2373, in raw_connection
    self.pool.unique_connection, _connection
  File "/usr/local/lib/python3.7/site-packages/sqlalchemy/engine/base.py", line 2343, in _wrap_pool_connect
    e, dialect, self
  File "/usr/local/lib/python3.7/site-packages/sqlalchemy/engine/base.py", line 1585, in _handle_dbapi_exception_noconnection
    sqlalchemy_exception, with_traceback=exc_info[2], from_=e
  File "/usr/local/lib/python3.7/site-packages/sqlalchemy/util/compat.py", line 178, in raise_
    raise exception
  File "/usr/local/lib/python3.7/site-packages/sqlalchemy/engine/base.py", line 2339, in _wrap_pool_connect
    return fn()
  File "/usr/local/lib/python3.7/site-packages/sqlalchemy/pool/base.py", line 304, in unique_connection
    return _ConnectionFairy._checkout(self)
  File "/usr/local/lib/python3.7/site-packages/sqlalchemy/pool/base.py", line 778, in _checkout
    fairy = _ConnectionRecord.checkout(pool)
  File "/usr/local/lib/python3.7/site-packages/sqlalchemy/pool/base.py", line 495, in checkout
    rec = pool._do_get()
  File "/usr/local/lib/python3.7/site-packages/sqlalchemy/pool/impl.py", line 140, in _do_get
    self._dec_overflow()
  File "/usr/local/lib/python3.7/site-packages/sqlalchemy/util/langhelpers.py", line 69, in __exit__
    exc_value, with_traceback=exc_tb,
  File "/usr/local/lib/python3.7/site-packages/sqlalchemy/util/compat.py", line 178, in raise_
    raise exception
  File "/usr/local/lib/python3.7/site-packages/sqlalchemy/pool/impl.py", line 137, in _do_get
    return self._create_connection()
  File "/usr/local/lib/python3.7/site-packages/sqlalchemy/pool/base.py", line 309, in _create_connection
    return _ConnectionRecord(self)
  File "/usr/local/lib/python3.7/site-packages/sqlalchemy/pool/base.py", line 440, in __init__
    self.__connect(first_connect_check=True)
  File "/usr/local/lib/python3.7/site-packages/sqlalchemy/pool/base.py", line 661, in __connect
    pool.logger.debug("Error on connect(): %s", e)
  File "/usr/local/lib/python3.7/site-packages/sqlalchemy/util/langhelpers.py", line 69, in __exit__
    exc_value, with_traceback=exc_tb,
  File "/usr/local/lib/python3.7/site-packages/sqlalchemy/util/compat.py", line 178, in raise_
    raise exception
  File "/usr/local/lib/python3.7/site-packages/sqlalchemy/pool/base.py", line 656, in __connect
    connection = pool._invoke_creator(self)
  File "/usr/local/lib/python3.7/site-packages/sqlalchemy/engine/strategies.py", line 114, in connect
    return dialect.connect(*cargs, **cparams)
  File "/usr/local/lib/python3.7/site-packages/sqlalchemy/engine/default.py", line 493, in connect
    return self.dbapi.connect(*cargs, **cparams)
  File "/usr/local/lib/python3.7/site-packages/psycopg2/__init__.py", line 127, in connect
    conn = _connect(dsn, connection_factory=connection_factory, **kwasync)
sqlalchemy.exc.OperationalError: (psycopg2.OperationalError) FATAL:  password authentication failed for user "postgres"

I used the helm chart deployment as described here:

Any ideias how I could fix this?