主机监控

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cd /usr/local/src
wget https://github.com/prometheus/node_exporter/releases/download/v0.18.0/node_exporter-0.18.0.linux-amd64.tar.gz
tar xf node_exporter-0.18.0.linux-amd64.tar.gz -C /opt/
ln -s /opt/node_exporter-0.18.0.linux-amd64/ /opt/node_exporter

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useradd ops
chown -R ops. /opt/node_exporter*

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cat > /etc/systemd/system/node_exporter.service << EOF
[Unit]
Description=Node_exporter daemon
After=network.target

[Service]
ExecStart=/opt/node_exporter/node_exporter
User=ops
Group=ops
PrivateTmp=True

[Install]
WantedBy=multi-user.target
EOF

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systemctl daemon-reload
systemctl enable node_exporter
systemctl start node_exporter
systemctl status node_exporter

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pip=$(ip a|grep eth0|grep inet|awk '{print $2}'|cut -d "/" -f 1);hn=$(hostname);curl -s -X PUT -d '{"id":"'"${hn}"'","name":"'"${hn}"'","address":"'"${pip}"'","port":9100,"tags":["hosts-node"],"checks":[{"http":"http://'"${pip}"':9100/metrics","interval":"15s"}]}' http://10.66.2.152:8500/v1/agent/service/register

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- job_name: consul-node
  consul_sd_configs:
    - server: "10.66.2.152:8500"
  relabel_configs:
    - source_labels: [__meta_consul_tags]
      # 从consul中过滤hosts-xxxxxx相关主机
      regex: .*hosts-node.*
      action: keep
    - source_labels:
        - __meta_consul_service
        - __meta_consul_service_address
      separator: "::"
      target_label: "sd_instance_name"
    - source_labels: [__meta_consul_dc]
      target_label: "dc"
    - source_labels: [__meta_consul_tags]
      target_label: "sd_tag"