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Charmed Ory Oathkeeper
https://charmhub.io/oathkeeper
Apache License 2.0
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`TypeError` when kratos relation data unavailable #59

Closed natalian98 closed 6 months ago

natalian98 commented 6 months ago

Bug Description

When relating oathkeeper with kratos, the following error can be observed in juju-debug logs if kratos-endpoint-info relation data is not yet available:

unit-oathkeeper-0: 12:04:01 INFO unit.oathkeeper/0.juju-log kratos-endpoint-info:6: No relation data available.
unit-oathkeeper-0: 12:04:01 ERROR unit.oathkeeper/0.juju-log kratos-endpoint-info:6: Uncaught exception while in charm code:
Traceback (most recent call last):
  File "/var/lib/juju/agents/unit-oathkeeper-0/charm/./src/charm.py", line 724, in <module>
    main(OathkeeperCharm)
  File "/var/lib/juju/agents/unit-oathkeeper-0/charm/venv/ops/main.py", line 456, in main
    _emit_charm_event(charm, dispatcher.event_name)
  File "/var/lib/juju/agents/unit-oathkeeper-0/charm/venv/ops/main.py", line 144, in _emit_charm_event
    event_to_emit.emit(*args, **kwargs)
  File "/var/lib/juju/agents/unit-oathkeeper-0/charm/venv/ops/framework.py", line 351, in emit
    framework._emit(event)
  File "/var/lib/juju/agents/unit-oathkeeper-0/charm/venv/ops/framework.py", line 853, in _emit
    self._reemit(event_path)
  File "/var/lib/juju/agents/unit-oathkeeper-0/charm/venv/ops/framework.py", line 943, in _reemit
    custom_handler(event)
  File "/var/lib/juju/agents/unit-oathkeeper-0/charm/./src/charm.py", line 437, in _on_kratos_relation_changed
    self._handle_status_update_config(event)
  File "/var/lib/juju/agents/unit-oathkeeper-0/charm/./src/charm.py", line 531, in _handle_status_update_config
    self._update_config()
  File "/var/lib/juju/agents/unit-oathkeeper-0/charm/venv/tenacity/__init__.py", line 289, in wrapped_f
    return self(f, *args, **kw)
  File "/var/lib/juju/agents/unit-oathkeeper-0/charm/venv/tenacity/__init__.py", line 379, in __call__
    do = self.iter(retry_state=retry_state)
  File "/var/lib/juju/agents/unit-oathkeeper-0/charm/venv/tenacity/__init__.py", line 325, in iter
    raise retry_exc.reraise()
  File "/var/lib/juju/agents/unit-oathkeeper-0/charm/venv/tenacity/__init__.py", line 158, in reraise
    raise self.last_attempt.result()
  File "/usr/lib/python3.10/concurrent/futures/_base.py", line 451, in result
    return self.__get_result()
  File "/usr/lib/python3.10/concurrent/futures/_base.py", line 403, in __get_result
    raise self._exception
  File "/var/lib/juju/agents/unit-oathkeeper-0/charm/venv/tenacity/__init__.py", line 382, in __call__
    result = fn(*args, **kwargs)
  File "/var/lib/juju/agents/unit-oathkeeper-0/charm/./src/charm.py", line 304, in _update_config
    conf = self._render_conf_file()
  File "/var/lib/juju/agents/unit-oathkeeper-0/charm/./src/charm.py", line 291, in _render_conf_file
    kratos_session_url=self._kratos_session_url,
  File "/var/lib/juju/agents/unit-oathkeeper-0/charm/./src/charm.py", line 272, in _kratos_session_url
    return self._get_kratos_endpoint_info("sessions_endpoint")
  File "/var/lib/juju/agents/unit-oathkeeper-0/charm/./src/charm.py", line 334, in _get_kratos_endpoint_info
    return kratos_endpoints[key]
TypeError: 'NoneType' object is not subscriptable
unit-oathkeeper-0: 12:04:01 ERROR juju.worker.uniter.operation hook "kratos-endpoint-info-relation-changed" (via hook dispatching script: dispatch) failed: exit status 1

The charm will eventually receive the relation data and become active.

To Reproduce

juju deploy oathkeeper --channel edge --trust
juju deploy postgresql-k8s --channel stable --trust
juju deploy kratos --channel edge --trust
juju relate kratos postgresql-k8s
juju relate kratos oathkeeper

Environment

juju 3.3.1

Relevant log output

unit-oathkeeper-0: 12:04:01 INFO unit.oathkeeper/0.juju-log kratos-endpoint-info:6: No relation data available.
unit-oathkeeper-0: 12:04:01 ERROR unit.oathkeeper/0.juju-log kratos-endpoint-info:6: Uncaught exception while in charm code:
Traceback (most recent call last):
  File "/var/lib/juju/agents/unit-oathkeeper-0/charm/./src/charm.py", line 724, in <module>
    main(OathkeeperCharm)
  File "/var/lib/juju/agents/unit-oathkeeper-0/charm/venv/ops/main.py", line 456, in main
    _emit_charm_event(charm, dispatcher.event_name)
  File "/var/lib/juju/agents/unit-oathkeeper-0/charm/venv/ops/main.py", line 144, in _emit_charm_event
    event_to_emit.emit(*args, **kwargs)
  File "/var/lib/juju/agents/unit-oathkeeper-0/charm/venv/ops/framework.py", line 351, in emit
    framework._emit(event)
  File "/var/lib/juju/agents/unit-oathkeeper-0/charm/venv/ops/framework.py", line 853, in _emit
    self._reemit(event_path)
  File "/var/lib/juju/agents/unit-oathkeeper-0/charm/venv/ops/framework.py", line 943, in _reemit
    custom_handler(event)
  File "/var/lib/juju/agents/unit-oathkeeper-0/charm/./src/charm.py", line 437, in _on_kratos_relation_changed
    self._handle_status_update_config(event)
  File "/var/lib/juju/agents/unit-oathkeeper-0/charm/./src/charm.py", line 531, in _handle_status_update_config
    self._update_config()
  File "/var/lib/juju/agents/unit-oathkeeper-0/charm/venv/tenacity/__init__.py", line 289, in wrapped_f
    return self(f, *args, **kw)
  File "/var/lib/juju/agents/unit-oathkeeper-0/charm/venv/tenacity/__init__.py", line 379, in __call__
    do = self.iter(retry_state=retry_state)
  File "/var/lib/juju/agents/unit-oathkeeper-0/charm/venv/tenacity/__init__.py", line 325, in iter
    raise retry_exc.reraise()
  File "/var/lib/juju/agents/unit-oathkeeper-0/charm/venv/tenacity/__init__.py", line 158, in reraise
    raise self.last_attempt.result()
  File "/usr/lib/python3.10/concurrent/futures/_base.py", line 451, in result
    return self.__get_result()
  File "/usr/lib/python3.10/concurrent/futures/_base.py", line 403, in __get_result
    raise self._exception
  File "/var/lib/juju/agents/unit-oathkeeper-0/charm/venv/tenacity/__init__.py", line 382, in __call__
    result = fn(*args, **kwargs)
  File "/var/lib/juju/agents/unit-oathkeeper-0/charm/./src/charm.py", line 304, in _update_config
    conf = self._render_conf_file()
  File "/var/lib/juju/agents/unit-oathkeeper-0/charm/./src/charm.py", line 291, in _render_conf_file
    kratos_session_url=self._kratos_session_url,
  File "/var/lib/juju/agents/unit-oathkeeper-0/charm/./src/charm.py", line 272, in _kratos_session_url
    return self._get_kratos_endpoint_info("sessions_endpoint")
  File "/var/lib/juju/agents/unit-oathkeeper-0/charm/./src/charm.py", line 334, in _get_kratos_endpoint_info
    return kratos_endpoints[key]
TypeError: 'NoneType' object is not subscriptable
unit-oathkeeper-0: 12:04:01 ERROR juju.worker.uniter.operation hook "kratos-endpoint-info-relation-changed" (via hook dispatching script: dispatch) failed: exit status 1

Additional context

No response

syncronize-issues-to-jira[bot] commented 6 months ago

Thank you for reporting us your feedback!

The internal ticket has been created: https://warthogs.atlassian.net/browse/IAM-681.

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