Promtail

promtail is an agent which ships the contents of local logs to a private Loki instance or Grafana Cloud.

• brew install promtail
• Config:
  • cat /etc/promtail/config.yml
  • ~/brew/etc/promtail-local-config.yaml
• promtail -version
• promtail -help

cat /tmp/test.log | promtail --stdin --dry-run --client.url http://127.0.0.1:3100/loki/api/v1/push

• Helm: https://github.com/grafana/helm-charts/tree/main/charts/promtail
• values.yml https://github.com/grafana/helm-charts/blob/main/charts/promtail/values.yaml
• helm upgrade --install promtail grafana/promtail --set "loki.serviceName=loki"

Errors

promtail
level=info ts=2023-12-19T12:11:36.495393Z caller=promtail.go:133 msg="Reloading configuration file" 
md5sum=332b04dbdadb303cbe75665c1a1e2208
level=error ts=2023-12-19T12:11:36.495418Z caller=main.go:170 msg="error creating promtail" error="failed to create client manager: at least one client config must be provided"

Related

• Grafana Loki
• Grafana Alloy
• Thanos
• node-problem-detector

See also

• Promtail, /etc/promtail/config.yml, promtail [ -check-syntax, | -version | -help ]
• Loki, changelog, 3100, promtail, Loki receiver, loki --help
• Files: tail, mtail, promtail, aws logs tail, ktail, stern, kubectl logs
• Logs, Log collector, log management, log explorer, Linux logging, docker logs, minikube logs, Vector, Logstash, Filebeat, promtail, logfmt, Elasticsearch, fluentd, Mezmo (LogDNA), Scalyr, Loggly, Loki, tlog, cockpit, NXLog, Winston, Amazon CloudWatch Logs Insights, Logz.io, Logflare, Coralogix