grok-exporter service is failing to start

[Vern Hart]

I just installed the latest prometheus-grok-exporter snap (rev 6, updated today, Jan 30) and the grok-exporter service fails to start.

In the systemd journal:

  Jan 31 03:43:43 vault-3 systemd[1]: Started Service for snap application prometheus-grok-exporter.grok-exporter.
  Jan 31 03:43:43 vault-3 prometheus-grok-exporter.grok-exporter[42306]: failed to read pattern file /var/snap/prometheus-grok-exporter/current/logstash-patterns-core/patterns/ecs-v1: read /var/snap/prometheus-grok-exporter/current/logstash-patterns-core/patterns/ecs-v1: is a directory
  Jan 31 03:43:43 vault-3 systemd[1]: snap.prometheus-grok-exporter.grok-exporter.service: Main process exited, code=exited, status=255/EXCEPTION
  Jan 31 03:43:43 vault-3 systemd[1]: snap.prometheus-grok-exporter.grok-exporter.service: Failed with result 'exit-code'.

The config.yaml in /var/snap/prometheus-grok-exporter/current/etc/ says:

  imports:
      - type: grok_patterns
        dir: /var/snap/prometheus-grok-exporter/current/logstash-patterns-core/patterns

If I change that to end with /legacy via juju config, it works:

  juju config prometheus-grok-exporter grok-patterns-path=/var/snap/prometheus-grok-exporter/current/logstash-patterns-core/patterns/legacy

[Nobuto Murata (nobuto)]

The rev6 is upstream's RC5

$ grep source-tag: stable/snap/manifest.yaml
    source-tag: v1.0.0.RC5

while the previous revision in the latest/stable was RC3 if I remember it correctly.

[Nobuto Murata (nobuto)]

The change has been reverted for the time being from the stable channel.

channels:
  latest/stable: 1.0.0 2023-01-31 (1) 6MB -
  latest/candidate: ↑
  latest/beta: 1.0.0 2020-03-20 (1) 6MB -
  latest/edge: 1.0.0 2023-01-27 (6) 8MB -

[Eric Chen (eric-chen)]

This charm is no longer being actively maintained