39 lines
1.1 KiB
Go
39 lines
1.1 KiB
Go
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package host
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import (
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"fmt"
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"log"
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"strings"
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"github.com/wcharczuk/go-chart/v2"
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)
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// This file contains utilities to create charts based on the different data
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// When a chart is rendered, it can return either an SVG or PNG. SVG is preferrable.
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func (h *Host) ChartMemory() string {
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h.getNodeInfo()
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log.Println("Generating Chart")
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memFree := float64(h.NodeMemory.Free)
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memCached := float64(h.NodeMemory.Cached)
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memBuffer := float64(h.NodeMemory.Buffers)
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memTotal := float64(h.NodeMemory.Total)
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c := chart.PieChart{
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Title: fmt.Sprintf("Memory Info %s", h.SystemHostName),
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Width: 256,
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Height: 256,
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Values: []chart.Value{
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{Value: memTotal - memFree, Label: fmt.Sprintf("%.2f%% Free", memFree/memTotal*100)},
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{Value: memTotal - memCached, Label: fmt.Sprintf("%.2f%% Cached", memCached/memTotal*100)},
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{Value: memTotal - memBuffer, Label: fmt.Sprintf("%.2f%% Buffers", memBuffer/memTotal*100)},
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},
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}
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sb := new(strings.Builder)
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log.Println("Rendering chart")
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if err := c.Render(chart.SVG, sb); err != nil {
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return err.Error()
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}
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return sb.String()
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}
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