node_exp_install.sh(文件已创建)
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| 1 | + | #!/bin/bash | |
| 2 | + | ||
| 3 | + | # Define version | |
| 4 | + | VERSION="1.9.1" | |
| 5 | + | ||
| 6 | + | # Create user for node_exporter | |
| 7 | + | useradd --no-create-home --shell /usr/sbin/nologin node_exporter | |
| 8 | + | ||
| 9 | + | # Download and extract Node Exporter | |
| 10 | + | cd /tmp | |
| 11 | + | wget https://github.com/prometheus/node_exporter/releases/download/v$VERSION/node_exporter-$VERSION.linux-amd64.tar.gz | |
| 12 | + | tar xvf node_exporter-$VERSION.linux-amd64.tar.gz | |
| 13 | + | ||
| 14 | + | # Move binary to /usr/local/bin | |
| 15 | + | cp node_exporter-$VERSION.linux-amd64/node_exporter /usr/local/bin/ | |
| 16 | + | chown node_exporter:node_exporter /usr/local/bin/node_exporter | |
| 17 | + | ||
| 18 | + | # Clean up | |
| 19 | + | rm -rf node_exporter-$VERSION.linux-amd64* | |
| 20 | + | ||
| 21 | + | # Create systemd service file | |
| 22 | + | cat <<EOF >/etc/systemd/system/node_exporter.service | |
| 23 | + | [Unit] | |
| 24 | + | Description=Prometheus Node Exporter | |
| 25 | + | Wants=network-online.target | |
| 26 | + | After=network-online.target | |
| 27 | + | ||
| 28 | + | [Service] | |
| 29 | + | User=node_exporter | |
| 30 | + | Group=node_exporter | |
| 31 | + | Type=simple | |
| 32 | + | ExecStart=/usr/local/bin/node_exporter | |
| 33 | + | ||
| 34 | + | [Install] | |
| 35 | + | WantedBy=default.target | |
| 36 | + | EOF | |
| 37 | + | ||
| 38 | + | # Reload systemd, enable and start service | |
| 39 | + | systemctl daemon-reexec | |
| 40 | + | systemctl daemon-reload | |
| 41 | + | systemctl enable --now node_exporter | |
| 42 | + | ||
| 43 | + | # Check status | |
| 44 | + | systemctl status node_exporter --no-pager | |
| 45 | + | ||
| 46 | + | echo "Node Exporter installation complete." | |
| 47 | + | echo "Access it via http://<server-ip>:9100/metrics" | |
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