monitoring stack updates

docker-compose/prometheus/README.md

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+# Installation
+
+## Deployment
+
+1. Copy the configuration template into the `/etc/prometheus/prometheus.yml` location.
+2. Copy the `docker-compose.yml` template into your project folder and start the container.
+
+## Configuration
+
+Configure your settings in the `/etc/prometheus/prometheus.yml` file.
+
+*For more info visit:* [Official Prometheus Installation Documentation](https://prometheus.io/docs/prometheus/latest/installation/)
+
+# Best-Practices & Post-Installation
+
+## Disable HTTP
+
+It's not secure to expose Prometheus via the HTTP protocol. 
+
+### Use a Reverse Proxy
+
+- [] Use a Reverse Proxy to securely expose administrative services.
+
+# Additional Referfences
+
+[Official Prometheus Documentation](https://prometheus.io/docs/introduction/overview/)

docker-compose/prometheus/config/prometheus.yml

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+global:
+  scrape_interval:     15s # By default, scrape targets every 15 seconds.
+
+  # Attach these labels to any time series or alerts when communicating with
+  # external systems (federation, remote storage, Alertmanager).
+  # external_labels:
+  #  monitor: 'codelab-monitor'
+
+# 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'
+    # Override the global default and scrape targets from this job every 5 seconds.
+    scrape_interval: 5s
+    static_configs:
+      - targets: ['localhost:9090']
+
+  # Example job for node_exporter
+  # - job_name: 'node_exporter'
+  #   static_configs:
+  #     - targets: ['node_exporter:9100']
+
+  # Example job for cadvisor
+  # - job_name: 'cadvisor'
+  #   static_configs:
+  #     - targets: ['cadvisor:8080']