-next fails to deploy with TypeError: 'str' object is not callable in ceph_client.auth()

[Nobuto Murata]

On my test bed and the simplified bundle attached, it always fails to deploy with the following trace.

However, it fails only with -next, not with the stable one.
https://jaas.ai/u/llama-charmers-next/prometheus-ceph-exporter/5

unit-prometheus-ceph-exporter-0: 13:12:12 ERROR unit.prometheus-ceph-exporter/0.juju-log ceph:2: Hook error:
Traceback (most recent call last):
  File "/var/lib/juju/agents/unit-prometheus-ceph-exporter-0/.venv/lib/python3.6/site-packages/charms/reactive/__init__.py", line 74, in main
    bus.dispatch(restricted=restricted_mode)
  File "/var/lib/juju/agents/unit-prometheus-ceph-exporter-0/.venv/lib/python3.6/site-packages/charms/reactive/bus.py", line 390, in dispatch
    _invoke(other_handlers)
  File "/var/lib/juju/agents/unit-prometheus-ceph-exporter-0/.venv/lib/python3.6/site-packages/charms/reactive/bus.py", line 359, in _invoke
    handler.invoke()
  File "/var/lib/juju/agents/unit-prometheus-ceph-exporter-0/.venv/lib/python3.6/site-packages/charms/reactive/bus.py", line 181, in invoke
    self._action(*args)
  File "/var/lib/juju/agents/unit-prometheus-ceph-exporter-0/charm/reactive/prometheus_ceph_exporter.py", line 92, in configure_exporter
    "auth_supported": ceph_client.auth(),
TypeError: 'str' object is not callable

[Nobuto Murata (nobuto)]

A reproducible and minimal bundle.

[Nobuto Murata (nobuto)]

fwiw, this is the relation data, not all units have the cephx key.

$ juju run --unit prometheus-ceph-exporter/0 -- relation-ids ceph
ceph:2

$ juju run --unit prometheus-ceph-exporter/0 -- relation-list -r ceph:2
ceph-mon/0
ceph-mon/1
ceph-mon/2

$ juju run --unit prometheus-ceph-exporter/0 -- relation-get -r ceph:2 - ceph-mon/0
auth: cephx
ceph-public-address: 192.168.151.145
egress-subnets: 192.168.151.145/32
ingress-address: 192.168.151.145
key: AQAEZl9faCBNKxAAlcglcknpLjd6ZK/EyESp5g==
private-address: 192.168.151.145

$ juju run --unit prometheus-ceph-exporter/0 -- relation-get -r ceph:2 - ceph-mon/1
egress-subnets: 192.168.151.146/32
ingress-address: 192.168.151.146
private-address: 192.168.151.146

$ juju run --unit prometheus-ceph-exporter/0 -- relation-get -r ceph:2 - ceph-mon/2
egress-subnets: 192.168.151.144/32
ingress-address: 192.168.151.144
private-address: 192.168.151.144

[Jonathan Coleman (velmeran)]

I fixed this by editing /var/lib/juju/agents/unit-prometheus-ceph-exporter-0/charm/reactive/prometheus_ceph_exporter.py

and changing:

ceph_client.auth() -> ceph_client.auth (only one instance)

str(ceph_client.key()) -> ceph_client.key (four instances)

Then restarting jujud-unit-prometheus-ceph-exporter-0.service

[Hybrid512 (walid-moghrabi)]

Bug and workaround from https://bugs.launchpad.net/charm-prometheus-ceph-exporter/+bug/1895531/comments/4 both confirmed.
This is annoying because -next is way more advanced than stable one :/

[Jose Guedez (jfguedez)]

This is fixed in https://code.launchpad.net/~ziyiwang/charm-prometheus-ceph-exporter/+git/charm-prometheus-ceph-exporter/+merge/391256