Charm incorrectly passes PosixPath('/etc/ceph/ceph-dashboard') as parameter to set-ssl-certificate

[Bartosz Woronicz]

When running ./hooks/install or ./certificates-relation-changed

Unit Workload Agent Machine Public address Ports Message
ceph-mon/0 active idle 1/lxd/1 10.0.1.107 Unit is ready and clustered
  ceph-dashboard/1 error idle 10.0.1.107 hook failed: "certificates-relation-changed"
  landscape-client/24 blocked idle 10.0.1.107 Registration failed!
  logrotated/24 active idle 10.0.1.107 Unit is ready.
  prometheus-grok-exporter/24 active idle 10.0.1.107 9144/tcp Unit is ready
  ubuntu-advantage/24 active idle 10.0.1.107 Attached (esm-apps,esm-infra)

I got error, as the charm code incorrectly passes the path to certificate as PosixPath object representation

root@juju-d060c8-7-lxd-1:/var/lib/juju/agents/unit-ceph-dashboard-0/charm# ./hooks/install
...
subprocess.CalledProcessError: Command '['ceph', 'dashboard', 'set-ssl-certificate', 'juju-d060c8-7-lxd-1', '-i', PosixPath('/etc/ceph/ceph-dashboard.
crt')]' returned non-zero exit status 5.

The config is as follows:
  ceph-dashboard:
    bindings:
      ? ''
      : oam-space
      certificates: internal-space
    channel: quincy/stable
    charm: ceph-dashboard
    options:
      grafana-api-url: https://grafana.maas:3000

The version of the charm is ceph-dashboard rev 50 in quincy/stable branch. Released on 7th Dec 2023.
Python version is Python 3.10.12.

[Peter Sabaini (peter-sabaini)]

Thanks @mastier1 for that report. Do you happen to have the full traceback around?
TIA