patrickjahns / ansible-role-loki-canary

🔧 Ansible role for deploying loki canary https://github.com/grafana/loki/blob/master/docs/operations/loki-canary.md

MIT License

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Added workaround for canary to properly work when not deployed on kubernetes #2

Closed patrickjahns closed 4 years ago

patrickjahns commented 4 years ago

Motivation

Currently canary is hardcoded with the labels stdout - see: https://github.com/grafana/loki/issues/1435 When just relying on systemd/journal for publishing the messages from canary+promtail to loki, the field would not be correctly set, or unexpected entries would appear in the log file

Description

the systemd unit was configured to redirect canary stdout to a log file to be parsed by promtail
a service discovery file will be written to promtails file_sd directory so promtail discovers the canary log file
logrotate was added to prevent the size of the canary log growing out of hand