- Detect this by turning on debug logging and then look for `dropping target, no labels` or `ignoring target` messages.
- Promtail cannot find the location of your log files. Check that the scrape_configs contains valid path setting for finding the logs in your worker nodes.
- Your pods are running but not with the labels Promtail is expecting. Check the Promtail scape_configs.
- Kubernetes 1.14+ and GKE 1.12+: the default scape_configs need to be adapted to work.