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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Rule File Generator</title>
<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0/dist/css/bootstrap.min.css" rel="stylesheet">
<link href="https://cdn.jsdelivr.net/npm/bootstrap-icons@1.11.3/font/bootstrap-icons.css" rel="stylesheet">
<style>
body { }
.split { display: flex; height: 100vh; }
.left, .right { flex: 1; padding: 0 1rem 2rem 2rem; overflow-y: auto; }
.right { flex: 1; padding: 0 2rem 2rem 1rem; overflow-y: auto; }
.group-card {
border: 1px solid #e5e7eb;
border-top: none;
margin-bottom: 2rem;
padding: 0.85rem 0.85rem 0.85rem 0.85rem;
box-shadow: 0 1px 4px rgba(0,0,0,0.03);
}
.rule-card { background: #f6f6f6; padding: 1rem; margin-bottom: 1rem; }
pre { background: rgb(248, 249, 250); color: black; padding: 1rem; border: 1px solid #dee2e6;}
.kv-row { display: flex; gap: 0.5rem; margin-bottom: 0.5rem; align-items: center; }
.kv-row input { flex: 1; }
.kv-row .btn { flex: 0 0 auto; }
.form-label { margin-bottom: 0.2rem; font-weight: 500; }
.group-header { display: flex; align-items: center; justify-content: space-between; }
.group-header .chevron-btn,
.group-bar .chevron-btn {
background: none;
border: none;
font-size: 1.2rem;
margin-right: 0.5rem;
cursor: pointer;
box-shadow: none;
outline: none;
}
.group-content.collapsed { display: none; }
.remove-btn {
background: none;
border: none;
box-shadow: none;
outline: none;
color: #dc3545;
font-size: 1.36rem;
font-weight: 300;
line-height: 1;
cursor: pointer;
transition: color 0.2s;
}
.remove-btn:hover { color: #a71d2a; }
.group-header.collapsed-header .group-name,
.group-header.collapsed-header label {
display: none !important;
}
.group-title {
display: block;
font-weight: 400;
color: #222;
background-color: rgb(248, 249, 250);
}
.group-bar {
display: flex;
align-items: center;
justify-content: space-between;
background: #fff;
border: 1px solid #e5e7eb;
border-bottom: 1px solid #e5e7eb;
padding: 0.5rem 0.5rem 0.5rem 0.5rem;
margin-bottom: 0;
position: relative;
z-index: 2;
box-shadow: 0 1px 4px rgba(0,0,0,0.03);
background-color: rgb(248, 249, 250);
}
.group-bar .group-title {
font-size: 1.5rem;
font-weight: 500;
color: #222;
padding: 0;
margin: 0;
letter-spacing: -0.5px;
}
.group-bar .bar-actions {
display: flex;
gap: 0.5rem;
align-items: center;
}
.group-card.collapsed {
display: none;
}
.group-header .form-label {
font-size: 0.95rem;
font-weight: 500;
margin-bottom: 0.5rem;
}
.group-header input,
.group-header select {
color: black;
font-size: 0.5rem;
height: auto;
}
.group-header input,
.group-header select {
border: 1px solid #e5e7eb;
background: #fff;
box-shadow: none;
font-size: 0.9rem;
}
.group-header input:focus,
.group-header select:focus {
border-color: #a3a3a3;
outline: none;
box-shadow: 0 0 0 2px #e0e7ff;
}
.btn-primary, .btn-outline-primary {
border-radius: 5px;
font-weight: 300;
font-size: 0.9rem;
box-shadow: none;
}
.btn-primary {
background: #2563eb;
border-color: #2563eb;
}
.btn-primary:hover {
background: #1d4ed8;
border-color: #1d4ed8;
}
.btn-outline-primary {
color: black;
border-color: #2563eb;
background: #fff;
}
.btn-outline-primary:hover {
background: #2563eb;
color: #fff;
}
.simple-plus-btn {
background: none;
border: none;
color: black;
font-size: 1.3rem;
font-weight: 300;
line-height: 1;
cursor: pointer;
transition: color 0.2s;
}
.simple-plus-btn:hover {
color: #1d4ed8;
}
.labels-row {
margin-bottom: 0.5rem;
}
.rules-row {
margin-bottom: 0.5rem;
}
.container {
max-width: 1140px;
margin: 0 auto;
padding: 2rem;
}
.rule-card.collapsed .rule-content {
display: none;
}
.rule-card .rule-title {
display: inline;
}
.rule-card .chevron-btn {
background: none !important;
border: none !important;
box-shadow: none !important;
}
#groupsList {
max-height: 70vh;
overflow-y: auto;
padding-right: 0.5rem;
}
#groupsList::-webkit-scrollbar {
width: 8px;
}
#groupsList::-webkit-scrollbar-track {
background: #f1f1f1;
border-radius: 4px;
}
#groupsList::-webkit-scrollbar-thumb {
background: #888;
border-radius: 4px;
}
#groupsList::-webkit-scrollbar-thumb:hover {
background: #555;
}
.rule-bar {
display: flex;
align-items: center;
background: rgb(248, 249, 250);
border: 1px solid #e5e7eb;
padding: 0.5rem 0.5rem 0.5rem 0.5rem;
margin-bottom: 0;
position: relative;
z-index: 2;
box-shadow: 0 1px 4px rgba(0,0,0,0.03);
border-radius: 6px 6px 0 0;
margin-top: 1rem;
}
.chevron-btn {
background: none !important;
border: none !important;
box-shadow: none !important;
outline: none !important;
padding: 0;
margin: 0 0.5rem 0 0;
font-size: 1.2rem;
cursor: pointer;
display: flex;
align-items: center;
}
.rule-title {
font-size: 1.15rem;
font-weight: 500;
color: #222;
padding: 0;
margin: 0;
letter-spacing: -0.5px;
text-align: left;
margin-right: 0.75rem;
flex: 1 1 auto;
}
.rule-card {
background: #f6f6f6;
padding: 1rem;
margin-bottom: 2rem;
border: 1px solid #e5e7eb;
border-top: none;
border-radius: 0 0 6px 6px;
box-shadow: 0 1px 4px rgba(0,0,0,0.03);
}
</style>
</head>
<body>
<h1 style="text-align:center; font-size:2.5rem; font-weight:500; margin-top:1.5rem; margin-bottom:0.2rem; letter-spacing:-1px; color:#222;">Prometheus Alert Rule File Generator</h1>
<div class="container">
<div class="split">
<div class="left">
<div class="d-flex justify-content-between align-items-center mb-3">
<h3 class="mb-0" style="margin-top:0;">Groups</h3>
<button class="btn btn-primary" id="addGroupBtn">+ Add Group</button>
</div>
<div id="groupsList"><div id="groups"></div></div>
</div>
<div class="right">
<div class="d-flex justify-content-between align-items-center mb-3">
<h3 class="mb-0" style="margin-top:0;">Configuration Output</h3>
<button id="downloadConfigBtn" class="btn btn-success">
<i class="bi bi-download"></i>
Download Config
</button>
</div>
<pre id="yamlOutput"></pre>
</div>
</div>
</div>
<template id="groupTemplate">
<div class="group-wrapper">
<div class="group-bar">
<span class="group-title"></span>
<div class="bar-actions">
<button type="button" class="chevron-btn" title="Toggle group">
<i class="bi bi-chevron-down"></i>
</button>
<button class="remove-btn remove-group" title="Remove group">×</button>
</div>
</div>
<div class="group-card">
<div class="group-header mb-2">
<div class="w-100 me-2">
<label class="form-label" for="group-name-__IDX__">Group Name</label>
<input class="form-control form-control-sm group-name" id="group-name-__IDX__" placeholder="Group name" style="max-width: 200px;">
</div>
</div>
<div class="group-content">
<div class="mb-2">
<div class="labels-row" style="display: flex; align-items: center; gap: 0.5rem;">
<label class="form-label mb-0">Labels</label>
<button type="button" class="add-group-label simple-plus-btn" title="Add label">+</button>
</div>
<div class="group-labels"></div>
</div>
<div class="rules-row" style="display: flex; align-items: center; gap: 0.5rem; margin-bottom: 0.5rem;">
<label class="form-label mb-0">Rules</label>
<button type="button" class="add-rule simple-plus-btn" title="Add rule">+</button>
</div>
<div class="rules"></div>
</div>
</div>
</div>
</template>
<template id="ruleTemplate">
<div class="rule-bar">
<span class="rule-title"></span>
<button type="button" class="chevron-btn chevron-rule" title="Toggle rule">
<i class="bi bi-chevron-down"></i>
</button>
<button class="remove-btn remove-rule" title="Remove rule">×</button>
</div>
<div class="rule-card">
<div class="rule-content">
<div class="mb-2">
<label class="form-label" for="alert-name-__IDX__">Rule Name</label>
<input class="form-control form-control-sm alert-name" id="alert-name-__IDX__" placeholder="AlertName">
</div>
<div class="mb-2">
<label class="form-label" for="expr-__IDX__">Expression</label>
<input class="form-control form-control-sm expr" id="expr-__IDX__" placeholder="promQL expression (e.g. up{job='myjob'} > 0.5)">
</div>
<div class="mb-2">
<label class="form-label" for="for-value-__IDX__">For</label>
<input class="form-control form-control-sm for-value" id="for-value-__IDX__" placeholder="For (e.g. 10m)">
</div>
<div class="mb-2">
<label class="form-label" for="keep-firing-for-__IDX__">Keep Firing For</label>
<input class="form-control form-control-sm keep-firing-for" id="keep-firing-for-__IDX__" placeholder="Keep Firing For (e.g. 5m)">
</div>
<div class="mb-2">
<div class="labels-row" style="display: flex; align-items: center; gap: 0.5rem;">
<label class="form-label mb-0">Labels</label>
<button type="button" class="add-rule-label simple-plus-btn" title="Add label">+</button>
</div>
<div class="rule-labels"></div>
</div>
<div class="mb-2">
<div class="labels-row" style="display: flex; align-items: center; gap: 0.5rem;">
<label class="form-label mb-0">Annotations</label>
<button type="button" class="add-rule-annotation simple-plus-btn" title="Add annotation">+</button>
</div>
<div class="rule-annotations"></div>
</div>
</div>
</div>
</template>
<template id="kvTemplate">
<div class="kv-row">
<div class="w-100 me-2">
<input class="form-control form-control-sm kv-key" id="kv-key-__IDX__" placeholder="key">
</div>
<div class="w-100 me-2">
<input class="form-control form-control-sm kv-value" id="kv-value-__IDX__" placeholder="value">
</div>
<button type="button" class="remove-btn remove-kv" title="Remove">×</button>
</div>
</template>
<script src="https://cdn.jsdelivr.net/npm/js-yaml@4.1.0/dist/js-yaml.min.js"></script>
<script>
const groupsDiv = document.getElementById('groups');
const yamlOutput = document.getElementById('yamlOutput');
const groupTemplate = document.getElementById('groupTemplate');
const ruleTemplate = document.getElementById('ruleTemplate');
const kvTemplate = document.getElementById('kvTemplate');
let groupIdx = 0, ruleIdx = 0, kvIdx = 0;
function getKeyValuePairs(container) {
const obj = {};
container.querySelectorAll('.kv-row').forEach(row => {
const k = row.querySelector('.kv-key').value.trim();
const v = row.querySelector('.kv-value').value.trim();
if (k && v) obj[k] = v;
});
return obj;
}
function updateYaml() {
const groups = [];
groupsDiv.querySelectorAll('.group-wrapper').forEach(groupWrapper => {
const name = groupWrapper.querySelector('.group-name').value || '';
const labels = getKeyValuePairs(groupWrapper.querySelector('.group-labels'));
const rules = [];
groupWrapper.querySelectorAll('.rule-card').forEach(ruleCard => {
rules.push({
alert: ruleCard.querySelector('.alert-name').value || '',
expr: ruleCard.querySelector('.expr').value || '',
for: ruleCard.querySelector('.for-value').value || '',
keep_firing_for: ruleCard.querySelector('.keep-firing-for').value || '',
labels: getKeyValuePairs(ruleCard.querySelector('.rule-labels')),
annotations: getKeyValuePairs(ruleCard.querySelector('.rule-annotations'))
});
});
groups.push({ name, labels, rules });
});
yamlOutput.textContent = jsyaml.dump({ groups }, { indent: 2, lineWidth: -1, noRefs: true, sortKeys: false });
}
function addKeyValue(container, key = '', value = '') {
const kvNode = kvTemplate.content.cloneNode(true);
kvIdx++;
kvNode.querySelector('.kv-key').id = 'kv-key-' + kvIdx;
kvNode.querySelector('.kv-value').id = 'kv-value-' + kvIdx;
kvNode.querySelector('.kv-key').value = key;
kvNode.querySelector('.kv-value').value = value;
kvNode.querySelector('.kv-key').addEventListener('input', updateYaml);
kvNode.querySelector('.kv-value').addEventListener('input', updateYaml);
kvNode.querySelector('.remove-kv').onclick = function() {
this.closest('.kv-row').remove();
updateYaml();
};
container.appendChild(kvNode);
}
function addRule(rulesDiv, ruleData = {}) {
const ruleNode = ruleTemplate.content.cloneNode(true);
ruleIdx++;
// Set unique IDs for labels
ruleNode.querySelector('.alert-name').id = 'alert-name-' + ruleIdx;
ruleNode.querySelector('.expr').id = 'expr-' + ruleIdx;
ruleNode.querySelector('.for-value').id = 'for-value-' + ruleIdx;
ruleNode.querySelector('.keep-firing-for').id = 'keep-firing-for-' + ruleIdx;
if (ruleData) {
ruleNode.querySelector('.alert-name').value = ruleData.alert || '';
ruleNode.querySelector('.expr').value = ruleData.expr || '';
ruleNode.querySelector('.for-value').value = ruleData.for || '';
ruleNode.querySelector('.keep-firing-for').value = ruleData.keep_firing_for || '';
}
// Labels
const ruleLabelsDiv = ruleNode.querySelector('.rule-labels');
(ruleData.labels ? Object.entries(ruleData.labels) : [['','']]).forEach(([k,v]) => addKeyValue(ruleLabelsDiv, k, v));
ruleNode.querySelector('.add-rule-label').onclick = () => { addKeyValue(ruleLabelsDiv); };
// Annotations
const ruleAnnotationsDiv = ruleNode.querySelector('.rule-annotations');
(ruleData.annotations ? Object.entries(ruleData.annotations) : [['','']]).forEach(([k,v]) => addKeyValue(ruleAnnotationsDiv, k, v));
ruleNode.querySelector('.add-rule-annotation').onclick = () => { addKeyValue(ruleAnnotationsDiv); };
// Collapse/expand logic for rule card
const ruleCard = ruleNode.querySelector('.rule-card');
const chevronBtn = ruleNode.querySelector('.chevron-rule');
const chevronIcon = chevronBtn.querySelector('i');
const ruleTitle = ruleNode.querySelector('.rule-title');
const alertNameInput = ruleNode.querySelector('.alert-name');
function syncRuleTitle() {
ruleTitle.textContent = alertNameInput.value || 'Unnamed Alert';
}
alertNameInput.addEventListener('input', syncRuleTitle);
syncRuleTitle();
chevronBtn.onclick = function() {
ruleCard.style.display = ruleCard.style.display === 'none' ? '' : 'none';
chevronIcon.classList.toggle('bi-chevron-down');
chevronIcon.classList.toggle('bi-chevron-right');
syncRuleTitle();
};
// Remove rule
ruleNode.querySelector('.remove-rule').onclick = function() {
// Remove both the rule-bar and the rule-card
const bar = this.closest('.rule-bar');
const card = bar.nextElementSibling;
if (bar) bar.remove();
if (card && card.classList.contains('rule-card')) card.remove();
updateYaml();
};
// Update on input
ruleNode.querySelectorAll('input, textarea').forEach(el => el.addEventListener('input', updateYaml));
rulesDiv.appendChild(ruleNode);
updateYaml();
}
function addGroup(groupData = null) {
const groupFrag = groupTemplate.content.cloneNode(true);
const groupWrapper = groupFrag.querySelector('.group-wrapper');
groupIdx++;
// Set unique ID for group name
groupWrapper.querySelector('.group-name').id = 'group-name-' + groupIdx;
if (groupData) {
groupWrapper.querySelector('.group-name').value = groupData.name || '';
}
// Group labels
const groupLabelsDiv = groupWrapper.querySelector('.group-labels');
(groupData && groupData.labels ? Object.entries(groupData.labels) : [['','']]).forEach(([k,v]) => addKeyValue(groupLabelsDiv, k, v));
groupWrapper.querySelector('.add-group-label').onclick = () => { addKeyValue(groupLabelsDiv); };
// Rules
const rulesDiv = groupWrapper.querySelector('.rules');
groupWrapper.querySelector('.add-rule').onclick = function() { addRule(rulesDiv); };
groupWrapper.querySelector('.remove-group').onclick = function() {
groupWrapper.remove();
updateYaml();
};
// Collapse/expand logic
const chevronBtn = groupWrapper.querySelector('.chevron-btn');
const chevronIcon = chevronBtn.querySelector('i');
const groupContent = groupWrapper.querySelector('.group-content');
const groupHeader = groupWrapper.querySelector('.group-header');
const groupNameInput = groupWrapper.querySelector('.group-name');
const groupTitle = groupWrapper.querySelector('.group-title');
// Sync group title with input
function syncGroupTitle() {
groupTitle.textContent = groupNameInput.value || 'Unnamed Group';
}
groupNameInput.addEventListener('input', function() {
syncGroupTitle();
updateYaml();
});
syncGroupTitle();
const groupCard = groupWrapper.querySelector('.group-card');
chevronBtn.onclick = function() {
groupCard.classList.toggle('collapsed');
chevronIcon.classList.toggle('bi-chevron-down');
chevronIcon.classList.toggle('bi-chevron-right');
syncGroupTitle();
};
// Add rules
if (groupData && groupData.rules) {
groupData.rules.forEach(rule => addRule(rulesDiv, rule));
} else {
addRule(rulesDiv);
}
groupsDiv.appendChild(groupWrapper);
updateYaml();
}
document.getElementById('addGroupBtn').onclick = () => { addGroup(); updateYaml(); };
// Add a default example group/rule on load
addGroup({
name: 'example',
labels: { team: 'myteam' },
rules: [
{
alert: 'AlertName',
expr: '',
for: '',
keep_firing_for: '',
labels: { labelName: 'labelValue' },
annotations: { summary: 'Alert summary' }
}
]
});
// Download Config button functionality
document.getElementById('downloadConfigBtn').onclick = function() {
const yaml = document.getElementById('yamlOutput').textContent;
const blob = new Blob([yaml], { type: 'text/yaml' });
const url = URL.createObjectURL(blob);
const a = document.createElement('a');
a.href = url;
a.download = 'alert-rules.yml';
document.body.appendChild(a);
a.click();
setTimeout(() => {
document.body.removeChild(a);
URL.revokeObjectURL(url);
}, 0);
};
</script>
</body>
</html>