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|
package dashboard
import (
"net/http"
)
type Handler struct{}
func NewHandler() *Handler {
return &Handler{}
}
func (h *Handler) ServeIndex(w http.ResponseWriter, r *http.Request) {
html := `<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>SeaweedFS Telemetry Dashboard</title>
<script src="https://cdn.jsdelivr.net/npm/chart.js"></script>
<style>
body {
font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
margin: 0;
padding: 20px;
background-color: #f5f5f5;
}
.container {
max-width: 1200px;
margin: 0 auto;
}
.header {
background: white;
padding: 20px;
border-radius: 8px;
margin-bottom: 20px;
box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}
.stats-grid {
display: grid;
grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
gap: 20px;
margin-bottom: 20px;
}
.stat-card {
background: white;
padding: 20px;
border-radius: 8px;
box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}
.stat-value {
font-size: 2em;
font-weight: bold;
color: #2196F3;
}
.stat-label {
color: #666;
margin-top: 5px;
}
.chart-container {
background: white;
padding: 20px;
border-radius: 8px;
margin-bottom: 20px;
box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}
.chart-title {
font-size: 1.2em;
font-weight: bold;
margin-bottom: 15px;
}
.loading {
text-align: center;
padding: 40px;
color: #666;
}
.error {
background: #ffebee;
color: #c62828;
padding: 15px;
border-radius: 4px;
margin: 10px 0;
}
</style>
</head>
<body>
<div class="container">
<div class="header">
<h1>SeaweedFS Telemetry Dashboard</h1>
<p>Privacy-respecting usage analytics for SeaweedFS</p>
</div>
<div id="loading" class="loading">Loading telemetry data...</div>
<div id="error" class="error" style="display: none;"></div>
<div id="dashboard" style="display: none;">
<div class="stats-grid">
<div class="stat-card">
<div class="stat-value" id="totalInstances">-</div>
<div class="stat-label">Total Instances (30 days)</div>
</div>
<div class="stat-card">
<div class="stat-value" id="activeInstances">-</div>
<div class="stat-label">Active Instances (7 days)</div>
</div>
<div class="stat-card">
<div class="stat-value" id="totalVersions">-</div>
<div class="stat-label">Different Versions</div>
</div>
<div class="stat-card">
<div class="stat-value" id="totalOS">-</div>
<div class="stat-label">Operating Systems</div>
</div>
</div>
<div class="chart-container">
<div class="chart-title">Version Distribution</div>
<canvas id="versionChart" width="400" height="200"></canvas>
</div>
<div class="chart-container">
<div class="chart-title">Operating System Distribution</div>
<canvas id="osChart" width="400" height="200"></canvas>
</div>
<div class="chart-container">
<div class="chart-title">Deployment Types</div>
<canvas id="deploymentChart" width="400" height="200"></canvas>
</div>
<div class="chart-container">
<div class="chart-title">Volume Servers Over Time</div>
<canvas id="serverChart" width="400" height="200"></canvas>
</div>
<div class="chart-container">
<div class="chart-title">Total Disk Usage Over Time</div>
<canvas id="diskChart" width="400" height="200"></canvas>
</div>
</div>
</div>
<script>
let charts = {};
async function loadDashboard() {
try {
// Load stats
const statsResponse = await fetch('/api/stats');
const stats = await statsResponse.json();
// Load metrics
const metricsResponse = await fetch('/api/metrics?days=30');
const metrics = await metricsResponse.json();
updateStats(stats);
updateCharts(stats, metrics);
document.getElementById('loading').style.display = 'none';
document.getElementById('dashboard').style.display = 'block';
} catch (error) {
console.error('Error loading dashboard:', error);
showError('Failed to load telemetry data: ' + error.message);
}
}
function updateStats(stats) {
document.getElementById('totalInstances').textContent = stats.total_instances || 0;
document.getElementById('activeInstances').textContent = stats.active_instances || 0;
document.getElementById('totalVersions').textContent = Object.keys(stats.versions || {}).length;
document.getElementById('totalOS').textContent = Object.keys(stats.os_distribution || {}).length;
}
function updateCharts(stats, metrics) {
// Version chart
createPieChart('versionChart', 'Version Distribution', stats.versions || {});
// OS chart
createPieChart('osChart', 'Operating System Distribution', stats.os_distribution || {});
// Deployment chart
createPieChart('deploymentChart', 'Deployment Types', stats.deployments || {});
// Server count over time
if (metrics.dates && metrics.server_counts) {
createLineChart('serverChart', 'Volume Servers', metrics.dates, metrics.server_counts, '#2196F3');
}
// Disk usage over time
if (metrics.dates && metrics.disk_usage) {
const diskUsageGB = metrics.disk_usage.map(bytes => Math.round(bytes / (1024 * 1024 * 1024)));
createLineChart('diskChart', 'Disk Usage (GB)', metrics.dates, diskUsageGB, '#4CAF50');
}
}
function createPieChart(canvasId, title, data) {
const ctx = document.getElementById(canvasId).getContext('2d');
if (charts[canvasId]) {
charts[canvasId].destroy();
}
const labels = Object.keys(data);
const values = Object.values(data);
charts[canvasId] = new Chart(ctx, {
type: 'pie',
data: {
labels: labels,
datasets: [{
data: values,
backgroundColor: [
'#FF6384', '#36A2EB', '#FFCE56', '#4BC0C0',
'#9966FF', '#FF9F40', '#FF6384', '#C9CBCF'
]
}]
},
options: {
responsive: true,
plugins: {
legend: {
position: 'bottom'
}
}
}
});
}
function createLineChart(canvasId, label, labels, data, color) {
const ctx = document.getElementById(canvasId).getContext('2d');
if (charts[canvasId]) {
charts[canvasId].destroy();
}
charts[canvasId] = new Chart(ctx, {
type: 'line',
data: {
labels: labels,
datasets: [{
label: label,
data: data,
borderColor: color,
backgroundColor: color + '20',
fill: true,
tension: 0.1
}]
},
options: {
responsive: true,
scales: {
y: {
beginAtZero: true
}
}
}
});
}
function showError(message) {
document.getElementById('loading').style.display = 'none';
document.getElementById('error').style.display = 'block';
document.getElementById('error').textContent = message;
}
// Load dashboard on page load
loadDashboard();
// Refresh every 5 minutes
setInterval(loadDashboard, 5 * 60 * 1000);
</script>
</body>
</html>`
w.Header().Set("Content-Type", "text/html")
w.WriteHeader(http.StatusOK)
w.Write([]byte(html))
}
|
