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#!/bin/bash |
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# Define versions as variables |
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PROMETHEUS_VERSION="3.2.0" # Default version, can be overridden |
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NODE_EXPORTER_VERSION="1.9.0" # Default version, can be overridden |
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# Prompt user for versions |
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read -p "Enter Prometheus version (default: $PROMETHEUS_VERSION): " PROMETHEUS_INPUT |
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read -p "Enter Node Exporter version (default: $NODE_EXPORTER_VERSION): " NODE_EXPORTER_INPUT |
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# Use default if user input is empty |
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PROMETHEUS_VERSION=${PROMETHEUS_INPUT:-$PROMETHEUS_VERSION} |
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NODE_EXPORTER_VERSION=${NODE_EXPORTER_INPUT:-$NODE_EXPORTER_VERSION} |
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# Detect system architecture |
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ARCH=$(uname -m) |
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if [[ "$ARCH" == "x86_64" ]]; then |
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ARCH="amd64" |
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elif [[ "$ARCH" == "aarch64" ]]; then |
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ARCH="arm64" |
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else |
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echo "Unsupported architecture: $ARCH" |
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exit 1 |
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fi |
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echo "Detected architecture: $ARCH" |
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# Update the system |
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sudo yum update -y |
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# Create prometheus user |
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echo "Creating prometheus user..." |
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sudo useradd -M -U prometheus |
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# Install Node Exporter |
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echo "Downloading Node Exporter v$NODE_EXPORTER_VERSION for $ARCH..." |
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wget https://github.com/prometheus/node_exporter/releases/download/v$NODE_EXPORTER_VERSION/node_exporter-$NODE_EXPORTER_VERSION.linux-$ARCH.tar.gz |
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echo "Extracting Node Exporter..." |
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tar -xvf node_exporter-$NODE_EXPORTER_VERSION.linux-$ARCH.tar.gz |
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echo "Moving Node Exporter to /opt/node_exporter..." |
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sudo mv node_exporter-$NODE_EXPORTER_VERSION.linux-$ARCH /opt/node_exporter |
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echo "Setting ownership and permissions for Node Exporter..." |
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sudo chown -R prometheus:prometheus /opt/node_exporter |
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echo "Creating systemd service for Node Exporter..." |
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sudo tee /etc/systemd/system/node_exporter.service > /dev/null <<EOF |
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[Unit] |
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Description=Node Exporter |
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After=network-online.target |
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[Service] |
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User=prometheus |
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Group=prometheus |
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Restart=on-failure |
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ExecStart=/opt/node_exporter/node_exporter |
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[Install] |
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WantedBy=multi-user.target |
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EOF |
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echo "Reloading systemd and enabling Node Exporter..." |
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sudo systemctl daemon-reload |
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sudo systemctl enable node_exporter |
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sudo systemctl start node_exporter |
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echo "Checking Node Exporter status..." |
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sudo systemctl status node_exporter |
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curl http://localhost:9100/metrics |
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# Install Prometheus |
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echo "Downloading Prometheus v$PROMETHEUS_VERSION for $ARCH..." |
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wget https://github.com/prometheus/prometheus/releases/download/v$PROMETHEUS_VERSION/prometheus-$PROMETHEUS_VERSION.linux-$ARCH.tar.gz |
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echo "Extracting Prometheus..." |
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tar -xvf prometheus-$PROMETHEUS_VERSION.linux-$ARCH.tar.gz |
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echo "Moving Prometheus to /opt/prometheus..." |
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sudo mv prometheus-$PROMETHEUS_VERSION.linux-$ARCH /opt/prometheus |
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echo "Setting ownership and permissions for Prometheus..." |
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sudo chown -R prometheus:prometheus /opt/prometheus |
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echo "Configuring prometheus.yml with global settings and scrapers..." |
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sudo tee /opt/prometheus/prometheus.yml > /dev/null <<EOF |
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global: |
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scrape_interval: 15s |
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evaluation_interval: 15s |
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scrape_configs: |
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- job_name: 'prometheus' |
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static_configs: |
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- targets: ['localhost:9090'] |
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- job_name: 'node_exporter' |
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static_configs: |
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- targets: ['localhost:9100'] |
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EOF |
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echo "Creating systemd service for Prometheus..." |
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sudo tee /etc/systemd/system/prometheus.service > /dev/null <<EOF |
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[Unit] |
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Description=Prometheus |
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After=network-online.target |
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[Service] |
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User=prometheus |
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Group=prometheus |
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Restart=on-failure |
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ExecStart=/opt/prometheus/prometheus \ |
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--config.file=/opt/prometheus/prometheus.yml \ |
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--storage.tsdb.path=/opt/prometheus/data \ |
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--storage.tsdb.retention.time=30d |
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[Install] |
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WantedBy=multi-user.target |
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EOF |
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echo "Reloading systemd and enabling Prometheus..." |
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sudo systemctl daemon-reload |
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sudo systemctl enable prometheus |
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sudo systemctl start prometheus |
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echo "Checking Prometheus status..." |
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sudo systemctl status prometheus |
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curl http://localhost:9090/metrics |
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echo "Installation completed." |
