Statistics with Grafana/Prometheus with sensor based on Overleaf instance statistics- #178

2026-11-12 13:13:45 +01:00 · 2026-10-27 13:43:32 +00:00
parent 6f2cf1c060
commit 05b1b04513
57 changed files with 3456 additions and 22 deletions
@@ -0,0 +1,67 @@
+# overleaf-cep — Prometheus scrape config
+# Modeled on the OlliTeX toolkit compose (reference: toolkit/compose.yaml +
+# build-images/prometheus/prometheus.yml), adapted to THIS stack's container
+# names. All targets are inside `overleaf-network` (Prometheus scrapes from
+# inside the docker network; the nginx edge does not forward /metrics).
+global:
+  scrape_interval: 15s
+  evaluation_interval: 15s
+  external_labels:
+    stack: overleaf-cep
+
+scrape_configs:
+  # --- the Overleaf app itself ------------------------------------------------
+  # The sharelatex image ships the @overleaf/metrics sensors on the web
+  # process (libraries/metrics): num_active_users, timer_http_request
+  # (summaries with quantiles), mongo_command_*, nodejs_* (event loop lag,
+  # GC, heap), security_http_auth_check_credentials, editor_join_project,
+  # tpds_add_doc, lock_mongoTransaction_*, ...
+  # Verified live: 0.0.0.0:3000 inside the container, samples carry
+  # app="web-api",host="overleaf". (Other in-image services e.g. compile
+  # :4000 are 127.0.0.1-bound and therefore not network-scrapable.)
+  - job_name: overleaf-web
+    metrics_path: /metrics
+    static_configs:
+      - targets: ["overleaf:3000"]
+        labels: { app: web-api }
+
+  # --- MongoDB (percona exporter) ----------------------------------------------
+  - job_name: overleaf-mongodb
+    metrics_path: /metrics
+    static_configs:
+      - targets: ["mongodb-exporter:9216"]
+
+  # --- Redis (oliver006 exporter) ------------------------------------------------
+  - job_name: overleaf-redis
+    metrics_path: /metrics
+    static_configs:
+      - targets: ["redis-exporter:9121"]
+
+  # --- Filestore (SeaweedFS master native prometheus, -metricsPort=9327) --------
+  - job_name: overleaf-filestore
+    metrics_path: /metrics
+    static_configs:
+      - targets: ["seaweedfs-master:9327"]
+        labels: { component: master }
+
+  # --- Instance stats sensor (PR yu-i-i/overleaf-cep#178, live as prometheus) ---
+  - job_name: overleaf-instance
+    metrics_path: /metrics
+    static_configs:
+      - targets: ["instance-sensor:9464"]
+
+  # --- Host-level signals ---------------------------------------------------------
+  - job_name: node
+    metrics_path: /metrics
+    static_configs:
+      - targets: ["node-exporter:9100"]
+
+  # --- The monitoring stack itself (self-up visibility in dashboards) -------------
+  - job_name: prometheus
+    static_configs:
+      - targets: ["prometheus:9090"]
+
+  - job_name: grafana
+    metrics_path: /metrics
+    static_configs:
+      - targets: ["grafana:3000"]