[feature] add prometheus and node_exporter services, remove default values from docker-compose.yml

add simple config for prometheus

.env.example

@@ -1,4 +1,13 @@
-COMPOSE_PROFILES=grafana,promtail
+COMPOSE_PROFILES=grafana
 
 GRAFANA_VERSION=9.1.7
-LOKI_STACK_VERSION=2.6.0
+GRAFANA_HOST=grafana.docker.localhost
+
+LOKI_STACK_VERSION=2.6.0
+LOKI_HOST=loki.docker.localhost
+LOKI_PROMTAIL_HOST=promtail.docker.localhost
+
+PROMETHEUS_VERSION=v2.43.0
+PROMETHEUS_NODE_EXPORTER_VERSION=v1.5.0
+PROMETHEUS_HOST=prometheus.docker.localhost
+PROMETHEUS_RETENTION_TIME=10d

.gitignore

@@ -1,4 +1,5 @@
 /.idea/
+/.vscode/
 
 /.env
-/docker-compose.override.yml
+/docker-compose.override.yml

docker-compose.yml

@@ -4,9 +4,9 @@ version: "3.9"
 services:
   grafana:
     image: grafana/grafana:${GRAFANA_VERSION:-latest}
-    labels: 
+    labels:
       - "traefik.enable=true"
-      - "traefik.http.routers.grafana.rule=Host(`grafana.docker.localhost`)"
+      - "traefik.http.routers.grafana.rule=Host(`${GRAFANA_HOST}`)"
       - "traefik.http.services.grafana.loadbalancer.server.port=3000"
     expose:
       - 3000
@@ -17,10 +17,10 @@ services:
       - grafana
 
   loki:
-    image: grafana/loki:${LOKI_STACK_VERSION:-2.6.0}
+    image: grafana/loki:${LOKI_STACK_VERSION}
-    labels: 
+    labels:
       - "traefik.enable=true"
-      - "traefik.http.routers.loki.rule=Host(`loki.docker.localhost`)"
+      - "traefik.http.routers.loki.rule=Host(`${LOKI_HOST}`)"
       - "traefik.http.services.loki.loadbalancer.server.port=3100"
     expose:
       - 3100
@@ -29,12 +29,12 @@ services:
     command: --config.file=/loki/config/config.yml
     profiles:
       - grafana
-  
+
   promtail:
-    image: grafana/promtail:${LOKI_STACK_VERSION:-2.6.0}
+    image: grafana/promtail:${LOKI_STACK_VERSION}
     labels:
       - "traefik.enable=true"
-      - "traefik.http.routers.grafana.rule=Host(`promtail.docker.localhost`)"
+      - "traefik.http.routers.grafana.rule=Host(`${LOKI_PROMTAIL_HOST}`)"
       - "traefik.http.services.grafana.loadbalancer.server.port=9080"
     expose:
       - 9080
@@ -46,5 +46,43 @@ services:
     profiles:
       - promtail
 
+  prometheus:
+    image: prom/prometheus:${PROMETHEUS_VERSION}
+    labels:
+      - "traefik.enable=true"
+      - "traefik.http.routers.prometheus.rule=Host(`${PROMETHEUS_HOST}`)"
+      - "traefik.http.services.prometheus.loadbalancer.server.port=9090"
+    command:
+      - '--config.file=/etc/prometheus/prometheus.yml'
+      - '--storage.tsdb.path=/prometheus'
+      - '--storage.tsdb.retention.time=${PROMETHEUS_RETENTION_TIME:-10d}'
+      - '--web.console.libraries=/usr/share/prometheus/console_libraries'
+      - '--web.console.templates=/usr/share/prometheus/consoles'
+    expose:
+      - 9090
+    volumes:
+      - ./prometheus/:/etc/prometheus/
+      - prometheus-data:/prometheus
+    profiles:
+      - prometheus
+
+  node-exporter:
+    image: prom/node-exporter:${PROMETHEUS_NODE_EXPORTER_VERSION}
+    restart: on-failure
+    volumes:
+      - /proc:/host/proc:ro
+      - /sys:/host/sys:ro
+      - /:/rootfs:ro
+    command:
+      - '--path.procfs=/host/proc'
+      - '--path.sysfs=/host/sys'
+      - --collector.filesystem.ignored-mount-points
+      - "^/(sys|proc|dev|host|etc|rootfs/var/lib/docker/containers|rootfs/var/lib/docker/overlay2|rootfs/run/docker/netns|rootfs/var/lib/docker/aufs)($$|/)"
+    expose:
+      - 9100
+    profiles:
+      - prometheus
+
 volumes:
   grafana-storage:
+  prometheus-data:

prometheus/prometheus.yml

@@ -0,0 +1,19 @@
+---
+global:
+  scrape_interval:     15s
+  evaluation_interval: 15s
+  external_labels:
+    monitor: 'dev-prometheus'
+
+scrape_config_files:
+  - /etc/prometheus/scrapes/*.yml
+
+scrape_configs:
+  - job_name: 'prometheus'
+    scrape_interval: 15s
+    static_configs:
+      - targets: ['localhost:9090']
+  - job_name: 'node-exporter'
+    scrape_interval: 15s
+    static_configs:
+      - targets: ['node-exporter:9100']

prometheus/scrapes/.gitignore

@@ -0,0 +1,2 @@
+/*
+!/.gitignore