Allow enabling and disabling prometheus exporter in docker-compose.yml

CHANGELOG.md

@@ -9,7 +9,16 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 
 ### Added
 
-- Dawarich now exports metrics to Prometheus. You can find the metrics at `/metrics` endpoint. The metrics are being exported in the Prometheus format and can be scraped by Prometheus server. You can find an example of how to scrape the metrics in the `docker-compose.yml` file in the repository.
+- Dawarich now can export metrics to Prometheus. You can find the metrics at `your.host:9394/metrics` endpoint. The metrics are being exported in the Prometheus format and can be scraped by Prometheus server. To enable exporting, set the `PROMETHEUS_EXPORTER_ENABLED` env var in your docker-compose.yml to `true`. Example:
+
+```yaml
+  dawarich_app:
+    image: freikin/dawarich:latest
+    container_name: dawarich_app
+    environment:
+      ...
+      PROMETHEUS_EXPORTER_ENABLED: "true"
+```
 
 # 0.16.5 - 2024-11-18
 

Procfile.dev

@@ -1,2 +1 @@
 web: bin/rails server -p 3000 -b 0.0.0.0
-prometheus_exporter: bundle exec prometheus_exporter

Procfile.prometheus.dev

@@ -0,0 +1,2 @@
+web: bin/rails server -p 3000 -b 0.0.0.0
+prometheus_exporter: bundle exec prometheus_exporter

bin/dev

@@ -6,4 +6,10 @@ then
   gem install foreman
 fi
 
+if [ "$PROMETHEUS_EXPORTER_ENABLED" = "true" ]; then
+  echo "Starting Foreman with Procfile.prometheus.dev..."
+  foreman start -f Procfile.prometheus.dev
+else
+  echo "Starting Foreman with Procfile.dev..."
   foreman start -f Procfile.dev
+fi

docker-compose.yml

@@ -65,6 +65,7 @@ services:
       DISTANCE_UNIT: km
       PHOTON_API_HOST: photon.komoot.io
       PHOTON_API_USE_HTTPS: true
+      PROMETHEUS_EXPORTER_ENABLED: false
     logging:
       driver: "json-file"
       options: