Grab metrics with Prometheus

.docker/prometheus.yml

@@ -0,0 +1,33 @@
+# my global config
+global:
+  scrape_interval: 15s # Set the scrape interval to every 15 seconds. Default is every 1 minute.
+  evaluation_interval: 15s # Evaluate rules every 15 seconds. The default is every 1 minute.
+  # scrape_timeout is set to the global default (10s).
+
+# Alertmanager configuration
+alerting:
+  alertmanagers:
+    - static_configs:
+        - targets:
+          # - alertmanager:9093
+
+# Load rules once and periodically evaluate them according to the global 'evaluation_interval'.
+rule_files:
+# - "first_rules.yml"
+# - "second_rules.yml"
+
+# A scrape configuration containing exactly one endpoint to scrape:
+# Here it's Prometheus itself.
+scrape_configs:
+  # The job name is added as a label `job=<job_name>` to any timeseries scraped from this config.
+  - job_name: "prometheus"
+
+    # metrics_path defaults to '/metrics'
+    # scheme defaults to 'http'.
+
+    static_configs:
+      - targets: ["localhost:9090"]
+  - job_name: "demo"
+    metrics_path: "/"
+    static_configs:
+      - targets: ["demo:80"]

docker-compose.yml

@@ -27,6 +27,7 @@ services:
     image: bitnami/prometheus:latest
     volumes:
       - prometheus-data:/opt/bitnami/prometheus/data
+      - ./.docker/prometheus.yml:/opt/bitnami/prometheus/conf/prometheus.yml:ro
     ports:
       - "9090:9090"