Comment 1 for bug 1892791

The k8s deployment controller for dex-auth keeps toggling between 0 and 1. For deployments, each time a new pod is created, that results in a new Juju unit, hence a new leader. So next step is to figure out what's causing the deployment to kill and restart pods.

In the Juju logs, there is a hook error logged twice

application-dex-auth: 11:58:50 ERROR unit.dex-auth/0.juju-log oidc-client:0: Hook error:
Traceback (most recent call last):
  File "lib/charms/reactive/__init__.py", line 74, in main
    bus.dispatch(restricted=restricted_mode)
  File "lib/charms/reactive/bus.py", line 390, in dispatch
    _invoke(other_handlers)
  File "lib/charms/reactive/bus.py", line 359, in _invoke
    handler.invoke()
  File "lib/charms/reactive/bus.py", line 181, in invoke
    self._action(*args)
  File "/var/lib/juju/agents/unit-dex-auth-0/charm/reactive/dex_auth.py", line 60, in start_charm
    oidc_client_info = endpoint_from_name('oidc-client').get_config()
  File "/var/lib/juju/agents/unit-dex-auth-0/charm/hooks/relations/oidc-client/requires.py", line 13, in get_config
    return [
  File "/var/lib/juju/agents/unit-dex-auth-0/charm/hooks/relations/oidc-client/requires.py", line 14, in <listcomp>
    json.loads(unit.received_raw["client_info"])
  File "/usr/lib/python3.8/json/__init__.py", line 341, in loads
    raise TypeError(f'the JSON object must be str, bytes or bytearray, '
TypeError: the JSON object must be str, bytes or bytearray, not NoneType