misc: finalized config files

docker-compose.dev.yml

@@ -99,13 +99,27 @@ services:
   prometheus:
     image: prom/prometheus
     volumes:
-      - ./prometheus.yml:/etc/prometheus/prometheus.yml
+      - ./prometheus.dev.yml:/etc/prometheus/prometheus.yml
     ports:
       - "9090:9090"
     command:
       - "--config.file=/etc/prometheus/prometheus.yml"
     profiles: [metrics]
 
+  otel-collector:
+    image: otel/opentelemetry-collector-contrib
+    volumes:
+      - ./otel-collector-config.yaml:/etc/otelcol-contrib/config.yaml
+    ports:
+      - 1888:1888 # pprof extension
+      - 8888:8888 # Prometheus metrics exposed by the Collector
+      - 8889:8889 # Prometheus exporter metrics
+      - 13133:13133 # health_check extension
+      - 4317:4317 # OTLP gRPC receiver
+      - 4318:4318 # OTLP http receiver
+      - 55679:55679 # zpages extension
+    profiles: [metrics-otel]
+
   grafana:
     image: grafana/grafana
     container_name: grafana