118 lines
3.5 KiB
Bash
118 lines
3.5 KiB
Bash
#!/bin/bash
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set -e
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# Detect Operation System
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if command -v apt >/dev/null 2>&1; then
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echo "Detected apt-based system"
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sudo apt update
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sudo apt install -y wget curl tar
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elif command -v dnf >/dev/null 2>&1; then
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echo "Detected dnf-based system"
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sudo dnf install -y wget curl tar
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else
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echo "Unsupported package manager"
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exit 1
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fi
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# Download Blackbox Exporter
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VERSION="0.28.0"
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ARCH="amd64"
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CN_URL="https://s3.cloudyun.top/downloads/blackbox_exporter-${VERSION}.linux-${ARCH}.tar.gz"
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GLOBAL_URL="https://github.com/prometheus/blackbox_exporter/releases/download/v${VERSION}/blackbox_exporter-${VERSION}.linux-${ARCH}.tar.gz"
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TARGET="/tmp/blackbox_exporter.tar.gz"
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is_cn=false
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echo "Detecting geographic location..."
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COUNTRY=$(curl -s --max-time 3 https://ipinfo.littlediary.cn/country || true)
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if [ "$COUNTRY" = "CN" ]; then
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is_cn=true
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fi
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if [ "$is_cn" = true ]; then
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echo "Geolocation: China mainland detected"
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DOWNLOAD_URL="$CN_URL"
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else
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echo "Geolocation: non-China region detected"
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DOWNLOAD_URL="$GLOBAL_URL"
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fi
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echo "Downloading from: $DOWNLOAD_URL"
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curl -fL -o "$TARGET" "$DOWNLOAD_URL"
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# Extract
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echo "Extracting Blackbox Exporter..."
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tar -zxvf "$TARGET" -C /tmp
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sudo mkdir -p /blackbox_exporter
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sudo cp "/tmp/blackbox_exporter-${VERSION}.linux-${ARCH}/blackbox_exporter" /blackbox_exporter/
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sudo cp "/tmp/blackbox_exporter-${VERSION}.linux-${ARCH}/blackbox.yml" /blackbox_exporter/
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# choosing port
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DEFAULT_PORT=9115
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if [ -t 0 ]; then
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while true; do
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read -rp "Please enter blackbox_exporter listen port [default: ${DEFAULT_PORT}]: " PORT
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PORT=${PORT:-$DEFAULT_PORT}
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if [[ "$PORT" =~ ^[0-9]+$ ]] && [ "$PORT" -ge 1 ] && [ "$PORT" -le 65535 ]; then
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break
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else
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echo "Invalid port. Please enter a number between 1 and 65535."
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fi
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done
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else
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PORT=$DEFAULT_PORT
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echo "No TTY detected, using default port: $PORT"
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fi
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# Create system user if not exists
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if ! id -u blackbox_exporter >/dev/null 2>&1; then
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echo "Creating blackbox_exporter system user..."
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sudo useradd --no-create-home --shell /bin/false blackbox_exporter
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fi
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# Set permissions and capabilities
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echo "Setting permissions and capabilities..."
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sudo chown -R blackbox_exporter:blackbox_exporter /blackbox_exporter
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# Grant raw socket capability for ICMP probing
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if command -v setcap >/dev/null 2>&1; then
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sudo setcap 'cap_net_raw+ep' /blackbox_exporter/blackbox_exporter
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else
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echo "Warning: setcap not found. ICMP probing might require root."
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fi
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# Create systemd service file
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SERVICE_FILE="/etc/systemd/system/blackbox_exporter.service"
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echo "Creating systemd service file..."
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sudo tee "$SERVICE_FILE" > /dev/null <<EOF
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[Unit]
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Description=Blackbox Exporter
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Wants=network-online.target
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After=network-online.target
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[Service]
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User=blackbox_exporter
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Group=blackbox_exporter
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WorkingDirectory=/blackbox_exporter
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ExecStart=/blackbox_exporter/blackbox_exporter --config.file=/blackbox_exporter/blackbox.yml --web.listen-address=":${PORT}"
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Restart=always
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NoNewPrivileges=true
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PrivateTmp=true
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ProtectSystem=full
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ProtectHome=true
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[Install]
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WantedBy=multi-user.target
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EOF
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# Reload systemd, enable and start service
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echo "Enabling and starting blackbox_exporter service..."
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sudo systemctl daemon-reload
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sudo systemctl enable --now blackbox_exporter.service
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echo "========================================================="
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echo "Blackbox Exporter installation completed!"
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echo "Listening on port: ${PORT}"
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echo "Config file: /blackbox_exporter/blackbox.yml"
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echo "========================================================="
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