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Async dashboard loading #4165

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97d3a56
embed assets
kron4eg Jul 30, 2026
0229725
async data islands in dashboard
kron4eg Jul 30, 2026
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5 changes: 5 additions & 0 deletions pkg/dashboard/assets/bootstrap-icons.min.css
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7 changes: 7 additions & 0 deletions pkg/dashboard/assets/bootstrap.bundle.min.js
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6 changes: 6 additions & 0 deletions pkg/dashboard/assets/bootstrap.min.css
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1 change: 1 addition & 0 deletions pkg/dashboard/assets/htmx.js
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105 changes: 81 additions & 24 deletions pkg/dashboard/components.templ
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Original file line number Diff line number Diff line change
Expand Up @@ -16,19 +16,22 @@ package dashboard

import "fmt"

templ Layout(data *dashboardData) {
templ Layout() {
<!DOCTYPE html>
<html lang="en" class="h-100">
<head>
<meta charset="UTF-8"/>
<link rel="icon" type="image/svg+xml" href="/assets/favicon.png"/>
<meta name="viewport" content="width=device-width, initial-scale=1.0"/>
<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.3/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-QWTKZyjpPEjISv5WaRU9OFeRpok6YctnYmDr5pNlyT2bRjXh0JMhjY6hW+ALEwIH" crossorigin="anonymous"/>
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap-icons@1.11.3/font/bootstrap-icons.min.css"/>
<script src="https://unpkg.com/htmx.org@2.0.4" integrity="sha384-HGfztofotfshcF7+8n44JQL2oJmowVChPTg48S+jvZoztPfvwD79OC/LTtG6dMp+" crossorigin="anonymous"></script>
<link href="/assets/bootstrap.min.css" rel="stylesheet"/>
<link rel="stylesheet" href="/assets/bootstrap-icons.min.css"/>
<script src="/assets/htmx.js"></script>
<style>
.htmx-request .icon-default { display: none; }
</style>
<title>KubeOne Dashboard</title>
</head>
<body class="d-flex flex-column h-100" hx-get="/" hx-trigger="every 10s" hx-target="body" hx-swap="outerHTML">
<body class="d-flex flex-column h-100">
<header class="navbar navbar-expand-lg sticky-top bd-navbar border-bottom py-3 bg-body px-4 shadow-sm">
<nav class="container-l bd-gutter d-flex flex-wrap flex-lg-nowrap align-items-center">
<img src="/assets/kubeone-logo.png" alt="logo" style="height: 30px;"/>
Expand All @@ -40,19 +43,35 @@ templ Layout(data *dashboardData) {
<div class="card shadow-sm">
<div class="card-body">
<h4 class="card-title pb-2">Control-Plane Nodes</h4>
@NodesTable(data.ControlPlaneNodes)
<div hx-get="/nodes/control-plane" hx-trigger="load, every 30s">
<div class="text-center py-3">
<div class="spinner-border text-secondary" role="status">
<span class="visually-hidden">Loading...</span>
</div>
</div>
</div>
</div>
if len(data.WorkerNodes) > 0 {
<div id="worker-section" hx-get="/nodes/worker" hx-trigger="load, every 30s" hx-swap="outerHTML">
<div class="card-body">
<h4 class="card-title pb-2">Worker Nodes</h4>
@NodesTable(data.WorkerNodes)
<div class="text-center py-3">
<div class="spinner-border text-secondary" role="status">
<span class="visually-hidden">Loading...</span>
</div>
</div>
</div>
}
</div>
</div>
<div class="card shadow-sm">
<div class="card-body">
<h4 class="card-title pb-2">Machine Deployments</h4>
@MachineDeploymentsTable(data.MachineDeployments)
<div id="machine-deployments" hx-get="/machine-deployments" hx-trigger="load, every 30s">
<div class="text-center py-3">
<div class="spinner-border text-secondary" role="status">
<span class="visually-hidden">Loading...</span>
</div>
</div>
</div>
</div>
</div>
</div>
Expand All @@ -62,11 +81,7 @@ templ Layout(data *dashboardData) {
<span class="text-body-secondary">Powered by Kubermatic</span>
</div>
</footer>
<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.3/dist/js/bootstrap.bundle.min.js" integrity="sha384-YvpcrYf0tY3lHB60NNkmXc5s9fDVZLESaAA55NDzOxhy9GkcIdslK1eN7N6jIeHz" crossorigin="anonymous"></script>
<script>
const tooltipTriggerList = document.querySelectorAll('[data-bs-toggle="tooltip"]')
const tooltipList = [...tooltipTriggerList].map(tooltipTriggerEl => new bootstrap.Tooltip(tooltipTriggerEl))
</script>
<script src="/assets/bootstrap.bundle.min.js"></script>
</body>
</html>
}
Expand All @@ -85,6 +100,17 @@ templ StatusBadge(status string) {
<span class={ fmt.Sprintf("badge text-bg-%s rounded-pill", badgeClass(status)) }>{ status }</span>
}

templ WorkerNodesSection(nodes []node) {
if len(nodes) > 0 {
<div id="worker-section" class="card-body" hx-get="/nodes/worker" hx-trigger="every 30s" hx-swap="outerHTML">
<h4 class="card-title pb-2">Worker Nodes</h4>
@NodesTable(nodes)
</div>
} else {
<div id="worker-section" hx-get="/nodes/worker" hx-trigger="every 30s" hx-swap="outerHTML" style="display:none"></div>
}
}

templ NodesTable(nodes []node) {
<div class="row row-cols-1 row-cols-md-4 g-3">
for _, n := range nodes {
Expand Down Expand Up @@ -145,7 +171,13 @@ templ NodesTable(nodes []node) {
}

templ RolloutButton(md machineDeployment) {
<form method="POST" action="/rollout" hx-post="/rollout" hx-target="body" hx-swap="outerHTML">
<form
method="POST"
action="/rollout"
hx-post="/rollout"
hx-target="#machine-deployments"
hx-swap="innerHTML"
>
<input type="hidden" name="Namespace" value={ md.Namespace }/>
<input type="hidden" name="Name" value={ md.Name }/>
<button type="submit" class="btn btn-outline-warning btn-sm" title="Force rollout">
Expand All @@ -156,7 +188,13 @@ templ RolloutButton(md machineDeployment) {

templ ScaleButtons(md machineDeployment) {
<div class="d-flex align-items-center gap-2">
<form method="POST" action="/scale" hx-post="/scale" hx-target="body" hx-swap="outerHTML">
<form
method="POST"
action="/scale"
hx-post="/scale"
hx-target="#machine-deployments"
hx-swap="innerHTML"
>
<input type="hidden" name="Namespace" value={ md.Namespace }/>
<input type="hidden" name="Name" value={ md.Name }/>
<input type="hidden" name="Direction" value="down"/>
Expand All @@ -168,7 +206,13 @@ templ ScaleButtons(md machineDeployment) {
>−</button>
</form>
<span class="fw-semibold">{ fmt.Sprintf("%d", md.Replicas) }</span>
<form method="POST" action="/scale" hx-post="/scale" hx-target="body" hx-swap="outerHTML">
<form
method="POST"
action="/scale"
hx-post="/scale"
hx-target="#machine-deployments"
hx-swap="innerHTML"
>
<input type="hidden" name="Namespace" value={ md.Namespace }/>
<input type="hidden" name="Name" value={ md.Name }/>
<input type="hidden" name="Direction" value="up"/>
Expand All @@ -187,7 +231,9 @@ templ MachineDeploymentsTable(machineDeployments []machineDeployment) {
<th scope="col">Namespace</th>
<th scope="col">Replicas</th>
<th scope="col">Available</th>
<th scope="col">Scale</th> <th scope="col">Rollout</th> <th scope="col">Kubelet</th>
<th scope="col">Scale</th>
<th scope="col">Rollout</th>
<th scope="col">Kubelet</th>
<th scope="col">Age</th>
</tr>
</thead>
Expand All @@ -203,9 +249,12 @@ templ MachineDeploymentsTable(machineDeployments []machineDeployment) {
<td>{ md.Namespace }</td>
<td>{ fmt.Sprintf("%d", md.Replicas) }</td>
<td>{ fmt.Sprintf("%d", md.AvailableReplicas) }</td>
<td>@ScaleButtons(md)
</td>
<td>@RolloutButton(md)</td>
<td>
@ScaleButtons(md)
</td>
<td>
@RolloutButton(md)
</td>
<td>{ md.Kubelet }</td>
<td>{ md.Age.String() }</td>
</tr>
Expand Down Expand Up @@ -254,7 +303,13 @@ templ MachinesTable(machines []machine) {
<td>{ m.Address }</td>
<td>{ m.Age.String() }</td>
<td>
<form method="POST" action="/delete-machine" hx-post="/delete-machine" hx-target="body" hx-swap="outerHTML">
<form
method="POST"
action="/delete-machine"
hx-post="/delete-machine"
hx-target="#machine-deployments"
hx-swap="innerHTML"
>
<input type="hidden" name="Namespace" value={ m.Namespace }/>
<input type="hidden" name="Name" value={ m.Name }/>
<button
Expand Down Expand Up @@ -292,7 +347,9 @@ templ NodePodsTable(nodeName string, pods []pod) {
}
for _, p := range pods {
<tr>
<td>@PodStatusBadge(p.Status)</td>
<td>
@PodStatusBadge(p.Status)
</td>
<td>{ p.Name }</td>
<td>{ p.Namespace }</td>
<td>{ p.Ready }</td>
Expand Down
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