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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>
85 lines
2.0 KiB
Go
85 lines
2.0 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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"github.com/gizak/termui/v3/widgets"
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"github.com/siderolabs/gen/slices"
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"github.com/siderolabs/talos/internal/pkg/dashboard/apidata"
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)
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// BaseGraph represents the widget with some usage graph.
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type BaseGraph struct {
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widgets.Plot
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}
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// NewBaseGraph initializes BaseGraph.
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func NewBaseGraph(title string, labels []string) *BaseGraph {
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widget := &BaseGraph{
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Plot: *widgets.NewPlot(),
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}
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widget.Border = false
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widget.Title = title
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widget.DataLabels = labels
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widget.ShowAxes = false
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// TODO: looks to be a bug as it requires at least 2 points
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widget.Data = slices.Map(labels, func(label string) []float64 { return []float64{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 *BaseGraph) 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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for i := range widget.Data {
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widget.Data[i] = []float64{0, 0}
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}
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return
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}
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width := widget.Inner.Dx()
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for i, name := range widget.DataLabels {
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series := nodeData.Series[name]
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if len(series) < width {
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width = len(series)
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}
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widget.Data[i] = widget.leftPadSeries(series[len(series)-width:], 2)
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}
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}
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func (widget *BaseGraph) leftPadSeries(series []float64, size int) []float64 {
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if len(series) >= size {
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return series
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}
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padded := make([]float64, size)
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copy(padded[size-len(series):], series)
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return padded
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}
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// NewCPUGraph creates CPU usage graph.
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func NewCPUGraph() *BaseGraph {
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return NewBaseGraph("CPU USER/SYSTEM", []string{"user", "system"})
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}
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// NewMemGraph creates mem usage graph.
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func NewMemGraph() *BaseGraph {
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return NewBaseGraph("MEM USED", []string{"mem"})
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}
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// NewLoadAvgGraph creates loadavg graph.
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func NewLoadAvgGraph() *BaseGraph {
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return NewBaseGraph("LOAD AVG 60sec", []string{"loadavg"})
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}
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