ubnt-freifunk-map-api/staticDevices.go

package main

import (
	"log"
	"strings"
	"time"

	client "github.com/influxdata/influxdb1-client/v2"
)

func processGateways() []node {
	d := getDevices(conf.Gateways.GatewaysURL)
	var nodes []node

	for i := range d.Devices {
		log.Println("Processing Static Device: ", d.Devices[i].Name)
		currentDevice := d.Devices[i]

		//Collect data
		//Calulate Memory (%)
		mem := getInfluxDataPoint("mem", currentDevice.FQDN, conf.General.ProxmoxInfluxPort)
		maxmem := getInfluxDataPoint("maxmem", currentDevice.FQDN, conf.General.ProxmoxInfluxPort)
		memory := mem / maxmem * 100
		rx := getInfluxDataPoint("netin", currentDevice.FQDN, conf.General.ProxmoxInfluxPort)
		tx := getInfluxDataPoint("netout", currentDevice.FQDN, conf.General.ProxmoxInfluxPort)
		// Get CPU (%)
		cpu := getInfluxDataPoint("cpu", currentDevice.FQDN, conf.General.ProxmoxInfluxPort) * 100
		//Uptime (seconds)
		uptime := getInfluxDataPoint("uptime", currentDevice.FQDN, conf.General.ProxmoxInfluxPort)
		t := time.Duration(uptime * float64(time.Second))
		up := time.Now().Add(-t)

		// fields := map[string]interface{}{}
		fields := make(map[string]any)
		tags := map[string]string{
			"hostname": strings.ReplaceAll(d.Devices[i].Name, " ", "-"),
			"nodeid":   strings.ReplaceAll(d.Devices[i].MAC, ":", ""),
		}

		//Build fields for InfluxDB
		fields["load"] = cpu
		fields["ram"] = int(memory)
		fields["time.up"] = int(uptime)
		//Network
		fields["traffic.rx.bytes"] = int(rx)
		fields["traffic.tx.bytes"] = int(tx)

		point, err := client.NewPoint(
			"node",
			tags,
			fields,
			time.Now(),
		)
		if err != nil {
			log.Fatalln("Error: ", err)
		}
		sendInfluxBatchDataPoint(point, conf.General.FreifunkInfluxPort)

		//Build Nodes
		nodes = append(nodes, node{
			Firstseen:      up.Format(iso8601),
			Lastseen:       time.Now().Format(iso8601),
			IsOnline:       true,
			IsGateway:      true,
			Clients:        0,
			ClientsWifi24:  0,
			ClientsWifi5:   0,
			ClientsOther:   0,
			RootFSUsage:    0,
			LoadAVG:        cpu,
			MemoryUsage:    memory,
			Uptime:         up.Format(iso8601),
			GatewayNexthop: "",
			Gateway:        "",
			NodeID:         strings.ReplaceAll(d.Devices[i].MAC, ":", ""),
			MAC:            d.Devices[i].MAC,
			Adresses:       d.Devices[i].Adresses,
			Domain:         d.Devices[i].Domain,
			Hostname:       "[Gateway] " + d.Devices[i].Name,
			Owner:          "Freifunk Troisdorf",
			Firmware: firmware{
				Base:    "KVM",
				Release: "Ubuntu 22.04",
			},
			Autoupdater: autoupdater{
				Enabled: false,
				Branch:  "stable",
			},
			NProc: 1,
			Model: "KVM",
		})
	}
	return nodes
}