Promtail

Overview

Promtail is an agent which reads log files and sends streams of log data to the centralised Loki instances along with a set of labels.

graph TB

  subgraph "Promtail"
    promtail
  end      

  subgraph "Loki"
    promtail --> loki
  end

Promtail does not persist data, and instead reads log files and streams the data to a log aggregation system.

Istio is disabled in the promtail chart by default and can be enabled by setting the following values in the bigbang chart:

istio:
  enabled: true

These values get passed into the promtail chart here.

By default, Promtail runs as a daemonset with a pod on each node.

None. This service doesn't have a web interface.

Promtail utilizes an AGPLv3 License for it's code and binaries.