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2dd0964c5f
Instead of doing excessive get/list requests, do a watch per node in an infinite retry. Additionally, refactor the dashboard code to make the various data listener namings more consistent and reorganize the packages. Closes siderolabs/talos#6960. Signed-off-by: Utku Ozdemir <utku.ozdemir@siderolabs.com>
98 lines
2.2 KiB
Go
98 lines
2.2 KiB
Go
// This Source Code Form is subject to the terms of the Mozilla Public
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// License, v. 2.0. If a copy of the MPL was not distributed with this
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// file, You can obtain one at http://mozilla.org/MPL/2.0/.
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package components
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import (
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"fmt"
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"math"
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ui "github.com/gizak/termui/v3"
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"github.com/gizak/termui/v3/widgets"
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"github.com/siderolabs/talos/internal/pkg/dashboard/apidata"
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)
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// SystemGauges quickly show CPU/mem load.
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type SystemGauges struct {
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*TermUIWrapper
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inner *systemGaugesInner
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}
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// NewSystemGauges creates SystemGauges.
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func NewSystemGauges() *SystemGauges {
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inner := systemGaugesInner{
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Block: *ui.NewBlock(),
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}
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inner.cpuGauge = widgets.NewGauge()
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inner.cpuGauge.Border = false
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inner.cpuGauge.Title = "CPU"
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inner.memGauge = widgets.NewGauge()
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inner.memGauge.Title = "MEM"
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inner.memGauge.Border = false
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wrapper := NewTermUIWrapper(&inner)
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widget := &SystemGauges{
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TermUIWrapper: wrapper,
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inner: &inner,
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}
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widget.SetBorderPadding(1, 0, 0, 0)
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return widget
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}
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// OnAPIDataChange implements the APIDataListener interface.
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func (widget *SystemGauges) OnAPIDataChange(node string, data *apidata.Data) {
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nodeData := data.Nodes[node]
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if nodeData == nil {
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widget.inner.cpuGauge.Label = noData
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widget.inner.cpuGauge.Percent = 0
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widget.inner.memGauge.Label = noData
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widget.inner.memGauge.Percent = 0
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} else {
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memUsed := nodeData.MemUsage()
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widget.inner.memGauge.Percent = int(math.Round(memUsed * 100.0))
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widget.inner.memGauge.Label = fmt.Sprintf("%.1f%%", memUsed*100.0)
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cpuUsed := nodeData.CPUUsageByName("usage")
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widget.inner.cpuGauge.Percent = int(math.Round(cpuUsed * 100.0))
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widget.inner.cpuGauge.Label = fmt.Sprintf("%.1f%%", cpuUsed*100.0)
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}
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}
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type systemGaugesInner struct {
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ui.Block
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cpuGauge *widgets.Gauge
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memGauge *widgets.Gauge
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}
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// Draw implements io.Drawable.
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func (widget *systemGaugesInner) Draw(buf *ui.Buffer) {
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width := widget.Dx()
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height := widget.Dy()
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y := 0
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itemHeight := 2
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for _, item := range []ui.Drawable{widget.cpuGauge, widget.memGauge} {
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item.SetRect(widget.Min.X, widget.Min.Y+y, widget.Min.X+width, widget.Min.Y+y+itemHeight+1)
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item.Draw(buf)
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y += itemHeight
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if y > height {
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break
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}
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}
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}
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