grafana-agent install hook fail: ImportError: charms.tls_certificates_interface.v2.tls_certificates is missing

[jneo8]

Bug Description

Unit in error status, which deploy from edge channel, (revision 20).

The error message will like

To Reproduce

# base focal
juju deploy ubuntu
juju deploy grafana-agent
juju relate grafana-agent ubuntu

Environment

juju 3.2.3 with local lxd

Relevant log output

2023-10-19 10:38:22 WARNING unit.grafana-agent/0.install logger.go:60 ImportError: libssl.so.3: cannot open shared object file: No such file or directory
2023-10-19 10:38:22 WARNING unit.grafana-agent/0.install logger.go:60 
2023-10-19 10:38:22 WARNING unit.grafana-agent/0.install logger.go:60 During handling of the above exception, another exception occurred:
2023-10-19 10:38:22 WARNING unit.grafana-agent/0.install logger.go:60 
2023-10-19 10:38:22 WARNING unit.grafana-agent/0.install logger.go:60 Traceback (most recent call last):
2023-10-19 10:38:22 WARNING unit.grafana-agent/0.install logger.go:60   File "./src/charm.py", line 20, in <module>
2023-10-19 10:38:22 WARNING unit.grafana-agent/0.install logger.go:60     from grafana_agent import METRICS_RULES_SRC_PATH, GrafanaAgentCharm
2023-10-19 10:38:22 WARNING unit.grafana-agent/0.install logger.go:60   File "/var/lib/juju/agents/unit-grafana-agent-0/charm/src/grafana_agent.py", line 31, in <module>
2023-10-19 10:38:22 WARNING unit.grafana-agent/0.install logger.go:60     from charms.observability_libs.v0.cert_handler import CertHandler
2023-10-19 10:38:22 WARNING unit.grafana-agent/0.install logger.go:60   File "/var/lib/juju/agents/unit-grafana-agent-0/charm/lib/charms/observability_libs/v0/cert_handler.py", line 51, in <module>
2023-10-19 10:38:22 WARNING unit.grafana-agent/0.install logger.go:60     raise ImportError(
2023-10-19 10:38:22 WARNING unit.grafana-agent/0.install logger.go:60 ImportError: charms.tls_certificates_interface.v2.tls_certificates is missing; please get it through charmcraft fetch-lib
2023-10-19 10:38:22 ERROR juju.worker.uniter.operation runhook.go:180 hook "install" (via hook dispatching script: dispatch) failed: exit status 1

Additional context

No response

[PietroPasotti]

the error message is misleading, the real issue is above: ImportError: libssl.so.3

what base is it running on? is libssl supposed to be found there?

[jneo8]

what base is it running on? is libssl supposed to be found there?

It's on focal.

[jneo8]

After some debuging, the issue only happen on if we relate Jammy series grafana-agent to focal series ubuntu.