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https://github.com/siderolabs/talos.git
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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>
109 lines
2.4 KiB
Go
109 lines
2.4 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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"time"
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"github.com/dustin/go-humanize"
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"github.com/rivo/tview"
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"github.com/siderolabs/talos/internal/pkg/dashboard/apidata"
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)
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// Header represents the top bar with host info.
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type Header struct {
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tview.TextView
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}
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// NewHeader initializes Header.
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func NewHeader() *Header {
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header := &Header{
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TextView: *tview.NewTextView(),
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}
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header.SetDynamicColors(true).SetText(noData)
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return header
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}
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// OnAPIDataChange implements the APIDataListener interface.
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func (widget *Header) OnAPIDataChange(node string, data *apidata.Data) {
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nodeData := data.Nodes[node]
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_ = nodeData
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if nodeData == nil {
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widget.SetText(notAvailable)
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return
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}
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hostname := notAvailable
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uptime := notAvailable
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version := notAvailable
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numCPUs := notAvailable
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cpuFreq := notAvailable
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totalMem := notAvailable
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numProcesses := notAvailable
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cpuUsagePercent := fmt.Sprintf("%.1f%%", nodeData.CPUUsageByName("usage")*100.0)
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memUsagePercent := fmt.Sprintf("%.1f%%", nodeData.MemUsage()*100.0)
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if nodeData.Hostname != nil {
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hostname = nodeData.Hostname.GetHostname()
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}
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if nodeData.Version != nil {
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version = nodeData.Version.GetVersion().GetTag()
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}
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if nodeData.SystemStat != nil {
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uptime = time.Since(time.Unix(int64(nodeData.SystemStat.GetBootTime()), 0)).Round(time.Second).String()
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}
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if nodeData.CPUsInfo != nil {
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numCPUs = fmt.Sprintf("%d", len(nodeData.CPUsInfo.GetCpuInfo()))
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cpuFreq = widget.humanizeCPUFrequency(nodeData.CPUsInfo.GetCpuInfo()[0].GetCpuMhz())
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}
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if nodeData.Processes != nil {
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numProcesses = fmt.Sprintf("%d", len(nodeData.Processes.GetProcesses()))
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}
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if nodeData.Memory != nil {
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totalMem = humanize.IBytes(nodeData.Memory.GetMeminfo().GetMemtotal() << 10)
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}
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text := fmt.Sprintf(
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"[yellow::b]%s[-:-:-] (%s): uptime %s, %sx%s, %s RAM, PROCS %s, CPU %s, RAM %s",
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hostname,
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version,
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uptime,
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numCPUs,
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cpuFreq,
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totalMem,
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numProcesses,
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cpuUsagePercent,
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memUsagePercent,
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)
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widget.SetText(text)
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}
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func (widget *Header) humanizeCPUFrequency(mhz float64) string {
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value := math.Round(mhz)
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unit := "MHz"
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if mhz >= 1000 {
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ghz := value / 1000
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value = math.Round(ghz*100) / 100
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unit = "GHz"
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}
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return fmt.Sprintf("%s%s", humanize.Ftoa(value), unit)
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}
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