Promtail

Promtail scrapes Docker container logs and host system logs, specifically by mounting the host system's /var/lib/docker/containers and /var/log directories to read raw stdout and stderr outputs.

Promtail actively hunts for JSON-wrapped `score_metrics` emitted by the Drupal backend.

Centralized and searchable logging is required for STD.DEV to maintain complete diagnostic transparency, ensuring every raw server event is captured.

Promtail applies intelligent labeling based on container names and metadata.

Promtail complements tools like rsyslog by directly attaching to the Docker daemon to capture raw application outputs, while rsyslog parses structured data from the Drupal backend.

By seamlessly shipping unformatted logs directly to Grafana Loki, Promtail ensures that no system event or crash loop is ever lost, providing engineers with absolute transparency in their Grafana dashboards.

Promtail's log shipping ensures that every raw server event is centralized and searchable, providing complete diagnostic transparency.

Promtail mounts the host system's /var/lib/docker/containers and /var/log directories to read logs.

Promtail securely pushes logs into Grafana Loki, ensuring that no system event or crash loop is ever lost and providing engineers with absolute transparency in their Grafana dashboards.