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Refresh to `1.0.3` snap release causes regression, crashing the service when connecting to controllers #51

Closed johnlettman closed 11 months ago

johnlettman commented 1 year ago

Hello,

We have encountered a regression on snap release 1.0.3 where attempts to connect to the Juju controllers fail due to an incompatibility. This issue has arisen from a variety of customer sites as soon as the refresh occurs from 1.0.2 to 1.0.3.

The following controllers are impacted:

The following is a log sample from the failure:

May 12 20:28:52 juju-3 systemd[1]: Started Service for snap application prometheus-juju-exporter.prometheus-juju-exporter.
May 12 20:28:53 juju-3 prometheus-juju-exporter.prometheus-juju-exporter[29632]: 2023-05-12 20:28:53,629 INFO - Configuration parsed successfully
May 12 20:28:53 juju-3 prometheus-juju-exporter.prometheus-juju-exporter[29632]: 2023-05-12 20:28:53,629 INFO - Parsed config: /var/snap/prometheus-juju-exporter/44
May 12 20:28:53 juju-3 prometheus-juju-exporter.prometheus-juju-exporter[29632]: 2023-05-12 20:28:53,629 INFO - Configuration parsed successfully
May 12 20:28:53 juju-3 prometheus-juju-exporter.prometheus-juju-exporter[29632]: 2023-05-12 20:28:53,629 DEBUG - Collector initialized
May 12 20:28:53 juju-3 prometheus-juju-exporter.prometheus-juju-exporter[29632]: 2023-05-12 20:28:53,629 DEBUG - Exporter initialized
May 12 20:28:53 juju-3 prometheus-juju-exporter.prometheus-juju-exporter[29632]: 2023-05-12 20:28:53,630 DEBUG - Running prometheus client http server.
May 12 20:28:53 juju-3 prometheus-juju-exporter.prometheus-juju-exporter[29632]: 2023-05-12 20:28:53,631 INFO - Collecting gauges...
May 12 20:28:53 juju-3 prometheus-juju-exporter.prometheus-juju-exporter[29632]: 2023-05-12 20:28:53,631 INFO - Connecting to controller at [REDACTED]:17070
May 12 20:28:53 juju-3 prometheus-juju-exporter.prometheus-juju-exporter[29632]: 2023-05-12 20:28:53,744 WARNING - Failed to connect to Juju controller at [REDACTED]:17070: juju server-version 2.7.6 not supported
May 12 20:28:54 juju-3 prometheus-juju-exporter.prometheus-juju-exporter[29632]: 2023-05-12 20:28:54,748 ERROR - Collection job resulted in error: Unable to connect to any of the Juju controllers.
May 12 20:28:54 juju-3 systemd[1]: snap.prometheus-juju-exporter.prometheus-juju-exporter.service: Main process exited, code=exited, status=1/FAILURE
May 12 20:28:54 juju-3 systemd[1]: snap.prometheus-juju-exporter.prometheus-juju-exporter.service: Failed with result 'exit-code'.
agileshaw commented 1 year ago

The libjuju package dependency has reverted, hence the issue is temporarily resolved. However, a more sophisticated and sustainable solution is needed to address the juju version issue.

agileshaw commented 11 months ago

Closing the issue because the implementation of snap versioning is completed.