# Monitoring Stack Installation on buzz.deome.loc

### **Monitoring Stack Installation on buzz.deome.loc**

#### **Overview**
This guide details the installation and configuration of a monitoring stack on *buzz.deome.loc* using Node Exporter, Prometheus, and Grafana. This setup will allow for system metrics collection, visualization, and alerting.

---

#### **1. Node Exporter Installation (for System Metrics)**

1. **Download and Install Node Exporter**:
   - Navigate to the desired installation directory and download the latest Node Exporter release:
     ```bash
     cd /usr/local/bin
     wget https://github.com/prometheus/node_exporter/releases/download/v1.6.0/node_exporter-1.6.0.linux-amd64.tar.gz
     tar xvfz node_exporter-1.6.0.linux-amd64.tar.gz
     mv node_exporter-1.6.0.linux-amd64/node_exporter .
     rm -rf node_exporter-1.6.0.linux-amd64*
     ```

2. **Create a Systemd Service for Node Exporter**:
   - Create a new service file:
     ```bash
     sudo nano /etc/systemd/system/node_exporter.service
     ```
   - Add the following configuration:
     ```ini
     [Unit]
     Description=Node Exporter
     After=network.target

     [Service]
     User=node_exporter
     ExecStart=/usr/local/bin/node_exporter

     [Install]
     WantedBy=default.target
     ```

3. **Start and Enable Node Exporter**:
   - Enable and start Node Exporter:
     ```bash
     sudo systemctl daemon-reload
     sudo systemctl enable node_exporter
     sudo systemctl start node_exporter
     ```

4. **Verify Node Exporter**:
   - Node Exporter should now be running on port `9100`. Check by navigating to `http://buzz.deome.loc:9100/metrics` in a web browser.

---

#### **2. Prometheus Installation and Configuration**

1. **Download and Install Prometheus**:
   - Download the latest Prometheus release:
     ```bash
     cd /usr/local/bin
     wget https://github.com/prometheus/prometheus/releases/download/v2.47.0/prometheus-2.47.0.linux-amd64.tar.gz
     tar xvfz prometheus-2.47.0.linux-amd64.tar.gz
     mv prometheus-2.47.0.linux-amd64/prometheus .
     mv prometheus-2.47.0.linux-amd64/promtool .
     rm -rf prometheus-2.47.0.linux-amd64*
     ```

2. **Configure Prometheus**:
   - Create the configuration file:
     ```bash
     sudo nano /usr/local/bin/prometheus.yml
     ```
   - Add the following configuration:
     ```yaml
     global:
       scrape_interval: 15s

     scrape_configs:
       - job_name: 'node_exporter'
         static_configs:
           - targets: ['localhost:9100']
     ```

3. **Create a Systemd Service for Prometheus**:
   - Create a new service file:
     ```bash
     sudo nano /etc/systemd/system/prometheus.service
     ```
   - Add the following configuration:
     ```ini
     [Unit]
     Description=Prometheus
     After=network.target

     [Service]
     User=prometheus
     ExecStart=/usr/local/bin/prometheus --config.file=/usr/local/bin/prometheus.yml --storage.tsdb.path=/var/lib/prometheus

     [Install]
     WantedBy=default.target
     ```

4. **Start and Enable Prometheus**:
   - Enable and start Prometheus:
     ```bash
     sudo systemctl daemon-reload
     sudo systemctl enable prometheus
     sudo systemctl start prometheus
     ```

5. **Verify Prometheus**:
   - Access Prometheus at `http://buzz.deome.loc:9090`.

---

#### **3. Grafana Installation and Configuration**

1. **Install Grafana**:
   - Add the Grafana repository and install Grafana:
     ```bash
     sudo apt update
     sudo apt install -y software-properties-common
     sudo add-apt-repository "deb https://packages.grafana.com/oss/deb stable main"
     sudo apt update
     sudo apt install grafana -y
     ```

2. **Start and Enable Grafana**:
   - Enable and start Grafana:
     ```bash
     sudo systemctl start grafana-server
     sudo systemctl enable grafana-server
     ```

3. **Access Grafana**:
   - Grafana will be accessible at `http://buzz.deome.loc:3000`. Default login is `admin` / `admin` (you will be prompted to change the password upon first login).

4. **Add Prometheus Data Source in Grafana**:
   - In Grafana:
     - Go to **Configuration > Data Sources > Add Data Source**.
     - Select **Prometheus** and set the URL to `http://localhost:9090`.
     - Save and test the data source.

---

#### **4. Setting Up Basic Dashboards and Alerts**

1. **Import Node Exporter Dashboard**:
   - Grafana provides pre-made dashboards. For Node Exporter metrics, import dashboard ID `1860` from Grafana’s dashboard library:
     - Go to **Create > Import** in Grafana.
     - Enter `1860` and follow the prompts to import the Node Exporter dashboard.

2. **Create Alerts in Prometheus (Optional)**:
   - Alerts can be set up in Prometheus for key metrics (e.g., CPU usage, memory).
   - Edit the Prometheus configuration file to add alert rules, and restart Prometheus for changes to take effect.

---

#### **5. Maintenance and Updates**

1. **Update the Stack**:
   - Periodically check for updates to Node Exporter, Prometheus, and Grafana:
     ```bash
     sudo apt update && sudo apt upgrade -y
     ```

2. **Data Backup**:
   - Regularly back up Grafana dashboards and Prometheus data as needed.

---

This setup guide provides a full configuration for a monitoring stack on *buzz.deome.loc* using Node Exporter, Prometheus, and Grafana. Let me know if there are additional steps or customizations you’d like!