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https://charmhub.io/grafana-k8s
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charm tracing fails over tls #330

Closed michaeldmitry closed 4 months ago

michaeldmitry commented 4 months ago

Bug Description

When trying to integrate grafana with tempo to send its charm traces over tls, it fails to do with an exception "Exception while exporting Span batch."

To Reproduce

juju deploy cos-lite --trust juju refresh grafana --channel latest/edge juju deploy tempo-k8s tempo --channel latest/edge juju deploy self-signed-certificates juju integrate self-signed-certificates:certificates grafana:certificates juju integrate self-signed-certificates:certificates tempo:certificates juju integrate tempo:tracing grafana:tracing wait for an event on grafana (e.g: update-status) look for error in juju logs

Environment

juju version: 3.4.2-genericlinux-amd64 microk8s version: MicroK8s v1.28.7 revision 6532 grafana rev: 112

Relevant log output

unit-grafana-0: 17:00:39 ERROR unit.grafana/0.juju-log tracing:41: Exception while exporting Span batch.
Traceback (most recent call last):
  File "/var/lib/juju/agents/unit-grafana-0/charm/venv/opentelemetry/sdk/trace/export/__init__.py", line 367, in _export_batch
    self.span_exporter.export(self.spans_list[:idx])  # type: ignore
  File "/var/lib/juju/agents/unit-grafana-0/charm/venv/opentelemetry/exporter/otlp/proto/http/trace_exporter/__init__.py", line 145, in export
    resp = self._export(serialized_data)
  File "/var/lib/juju/agents/unit-grafana-0/charm/venv/opentelemetry/exporter/otlp/proto/http/trace_exporter/__init__.py", line 114, in _export
    return self._session.post(
  File "/var/lib/juju/agents/unit-grafana-0/charm/venv/requests/sessions.py", line 637, in post
    return self.request("POST", url, data=data, json=json, **kwargs)
  File "/var/lib/juju/agents/unit-grafana-0/charm/venv/requests/sessions.py", line 589, in request
    resp = self.send(prep, **send_kwargs)
  File "/var/lib/juju/agents/unit-grafana-0/charm/venv/requests/sessions.py", line 703, in send
    r = adapter.send(request, **kwargs)
  File "/var/lib/juju/agents/unit-grafana-0/charm/venv/requests/adapters.py", line 458, in send
    self.cert_verify(conn, request.url, verify, cert)
  File "/var/lib/juju/agents/unit-grafana-0/charm/venv/requests/adapters.py", line 261, in cert_verify
    raise OSError(
OSError: Could not find a suitable TLS CA certificate bundle, invalid path: /etc/grafana/grafana.crt

Additional context

No response