No such file or directory: '/root/cdk/server.key' during deployment

[George Kraft]

This occurred during deployment of a new kubernetes-worker unit. The charm recovered on its own shortly after.

There is definitely a race condition here, as this does not always happen.

Traceback (most recent call last):
  File "/var/lib/juju/agents/unit-tigera-secure-ee-12/.venv/lib/python3.6/site-packages/charms/reactive/__init__.py", line 73, in main
    bus.dispatch(restricted=restricted_mode)
  File "/var/lib/juju/agents/unit-tigera-secure-ee-12/.venv/lib/python3.6/site-packages/charms/reactive/bus.py", line 390, in dispatch
    _invoke(other_handlers)
  File "/var/lib/juju/agents/unit-tigera-secure-ee-12/.venv/lib/python3.6/site-packages/charms/reactive/bus.py", line 359, in _invoke
    handler.invoke()
  File "/var/lib/juju/agents/unit-tigera-secure-ee-12/.venv/lib/python3.6/site-packages/charms/reactive/bus.py", line 181, in invoke
    self._action(*args)
  File "/var/lib/juju/agents/unit-tigera-secure-ee-12/charm/reactive/calico.py", line 254, in deploy_network_policy_controller
    'key': read_file_to_base64('/root/cdk/server.key'),
  File "/var/lib/juju/agents/unit-tigera-secure-ee-12/charm/reactive/calico.py", line 371, in read_file_to_base64
    with open(path, 'rb') as f:
FileNotFoundError: [Errno 2] No such file or directory: '/root/cdk/server.key'

[George Kraft (cynerva)]

PR: https://github.com/juju-solutions/layer-tigera-secure-ee/pull/12