Files
rootnode-academy/infra/monitoring/promtail/promtail-config.lab-host.yml.j2
ced4568 4e8fa1d413 feat(observability): Prometheus/Alertmanager/Grafana/Loki stack
Self-hosted, no paid SaaS. Host/container/Postgres metrics, uptime probes
against the new /healthz endpoints, alert rules split critical (pages) vs
warning (informational), one starter Grafana dashboard. Deliberately
separate from the application's instructor learning analytics (Phase 3B) -
different audience, different data.

Validated: promtool check config (valid), promtool check rules (11 rules,
valid), amtool check-config (1 inhibit rule, 2 receivers, valid).
2026-08-18 17:13:14 -05:00

39 lines
1.2 KiB
Django/Jinja

# Promtail on rn-lab-host-01 — same shape as promtail-config.platform.yml, but pushes to Loki
# over the network (Loki lives on rn-platform-01, not locally) since these two hosts don't
# share a Docker network. {{ platform_ip }} is an Ansible variable, rendered by the lab-host
# role — see infra/firewall/rn-platform-01.rules for the matching inbound rule (3100, this
# host's IP only).
server:
http_listen_port: 9080
positions:
filename: /tmp/positions.yaml
clients:
- url: "http://{{ platform_ip }}:3100/loki/api/v1/push"
scrape_configs:
- job_name: docker
docker_sd_configs:
- host: unix:///var/run/docker.sock
refresh_interval: 15s
relabel_configs:
- source_labels: [__meta_docker_container_name]
target_label: container
- source_labels: [__meta_docker_container_label_com_docker_compose_service]
target_label: service
pipeline_stages:
- replace:
expression: '(?i)(password|token|secret)=[^&\s]+'
replace: '$1=***REDACTED***'
- job_name: journal
journal:
max_age: 24h
labels:
job: systemd-journal
relabel_configs:
- source_labels: [__journal__systemd_unit]
target_label: unit