Prometheus: Scrape even metrics from mimir promtail and loki

coreos-config/plays/services/prometheus/docker-compose.yaml

@@ -168,6 +168,9 @@ services:
     volumes:
       - ./loki.yml:/etc/loki/loki.yaml:ro,Z
       - loki_data:/loki
+    labels:
+      - "prometheus-scrape.enabled=true"
+      - "prometheus-scrape.port=3100"
     networks:
       - backend
       - default
@@ -183,6 +186,9 @@ services:
       - /var/lib/docker/containers:/var/lib/docker/containers:ro
       - /var/run/docker.sock:/var/run/docker.sock
     command: -config.file=/etc/promtail/config.yml
+    labels:
+      - "prometheus-scrape.enabled=true"
+      - "prometheus-scrape.port=8080"
     networks:
       - backend
 
@@ -196,6 +202,9 @@ services:
       - /bin/mimir
       - -config.file=/etc/mimir-config/mimir.yaml
       - -validation.max-label-names-per-series=60
+    labels:
+      - "prometheus-scrape.enabled=true"
+      - "prometheus-scrape.port=8080"
     networks:
       - backend
       - default

coreos-config/plays/services/prometheus/promtail.yml

@@ -1,5 +1,7 @@
 positions:
   filename: /positions.yaml
+server:
+  http_listen_port: 8080
 
 clients:
   - url: http://loki:3100/loki/api/v1/push