This workflow follows the HTTP Request → Telegram recipe pattern — see all workflows that pair these two integrations.
The workflow JSON
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{
"name": "Proxmox Performance Monitoring",
"nodes": [
{
"parameters": {
"rule": {
"interval": [
{
"field": "cronExpression",
"expression": "*/5 * * * *"
}
]
}
},
"id": "performance-check-trigger",
"name": "Performance Check (5min)",
"type": "n8n-nodes-base.cron",
"typeVersion": 1,
"position": [
240,
300
]
},
{
"parameters": {
"httpMethod": "POST",
"path": "performance-alert",
"responseMode": "responseNode",
"options": {}
},
"id": "performance-alert-webhook",
"name": "Performance Alert Webhook",
"type": "n8n-nodes-base.webhook",
"typeVersion": 1,
"position": [
240,
500
]
},
{
"parameters": {
"url": "http://proxmox-mcp-server:8080/api/v1/cluster/resources",
"authentication": "genericCredentialType",
"genericAuthType": "httpHeaderAuth",
"httpHeaderAuth": {
"name": "Authorization",
"value": "Bearer {{$credentials.proxmox_api_token}}"
},
"options": {}
},
"id": "get-cluster-resources",
"name": "Get Cluster Resources",
"type": "n8n-nodes-base.httpRequest",
"typeVersion": 3,
"position": [
460,
300
]
},
{
"parameters": {
"functionCode": "// Analyze resource usage and identify issues\nconst resources = $json;\nconst alerts = [];\n\n// Check nodes\nfor (const node of resources.nodes || []) {\n const cpuUsage = (node.cpu / node.maxcpu) * 100;\n const memUsage = (node.mem / node.maxmem) * 100;\n const diskUsage = (node.disk / node.maxdisk) * 100;\n \n if (cpuUsage > 90) {\n alerts.push({\n type: 'high_cpu_usage',\n resource_type: 'node',\n resource_id: node.node,\n severity: 'critical',\n value: cpuUsage,\n threshold: 90,\n message: `Node ${node.node} CPU usage is ${cpuUsage.toFixed(1)}%`\n });\n } else if (cpuUsage > 80) {\n alerts.push({\n type: 'high_cpu_usage',\n resource_type: 'node',\n resource_id: node.node,\n severity: 'warning',\n value: cpuUsage,\n threshold: 80,\n message: `Node ${node.node} CPU usage is ${cpuUsage.toFixed(1)}%`\n });\n }\n \n if (memUsage > 90) {\n alerts.push({\n type: 'high_memory_usage',\n resource_type: 'node',\n resource_id: node.node,\n severity: 'critical',\n value: memUsage,\n threshold: 90,\n message: `Node ${node.node} memory usage is ${memUsage.toFixed(1)}%`\n });\n }\n \n if (diskUsage > 85) {\n alerts.push({\n type: 'high_disk_usage',\n resource_type: 'node',\n resource_id: node.node,\n severity: diskUsage > 95 ? 'critical' : 'warning',\n value: diskUsage,\n threshold: 85,\n message: `Node ${node.node} disk usage is ${diskUsage.toFixed(1)}%`\n });\n }\n}\n\n// Check VMs\nfor (const vm of resources.vms || []) {\n if (vm.status !== 'running') continue;\n \n const cpuUsage = (vm.cpu / vm.maxcpu) * 100;\n const memUsage = (vm.mem / vm.maxmem) * 100;\n \n if (cpuUsage > 95) {\n alerts.push({\n type: 'high_cpu_usage',\n resource_type: 'vm',\n resource_id: vm.vmid,\n severity: 'critical',\n value: cpuUsage,\n threshold: 95,\n message: `VM ${vm.vmid} (${vm.name}) CPU usage is ${cpuUsage.toFixed(1)}%`\n });\n }\n \n if (memUsage > 95) {\n alerts.push({\n type: 'high_memory_usage',\n resource_type: 'vm',\n resource_id: vm.vmid,\n severity: 'critical',\n value: memUsage,\n threshold: 95,\n message: `VM ${vm.vmid} (${vm.name}) memory usage is ${memUsage.toFixed(1)}%`\n });\n }\n}\n\n// Check containers\nfor (const container of resources.containers || []) {\n if (container.status !== 'running') continue;\n \n const cpuUsage = (container.cpu / container.maxcpu) * 100;\n const memUsage = (container.mem / container.maxmem) * 100;\n \n if (cpuUsage > 95) {\n alerts.push({\n type: 'high_cpu_usage',\n resource_type: 'container',\n resource_id: container.vmid,\n severity: 'critical',\n value: cpuUsage,\n threshold: 95,\n message: `Container ${container.vmid} (${container.name}) CPU usage is ${cpuUsage.toFixed(1)}%`\n });\n }\n \n if (memUsage > 95) {\n alerts.push({\n type: 'high_memory_usage',\n resource_type: 'container',\n resource_id: container.vmid,\n severity: 'critical',\n value: memUsage,\n threshold: 95,\n message: `Container ${container.vmid} (${container.name}) memory usage is ${memUsage.toFixed(1)}%`\n });\n }\n}\n\nreturn alerts.map(alert => ({ json: alert }));"
},
"id": "analyze-performance",
"name": "Analyze Performance",
"type": "n8n-nodes-base.function",
"typeVersion": 1,
"position": [
680,
300
]
},
{
"parameters": {
"conditions": {
"string": [
{
"value1": "={{$json.severity}}",
"operation": "equal",
"value2": "critical"
}
]
}
},
"id": "if-critical-alert",
"name": "Critical Alert?",
"type": "n8n-nodes-base.if",
"typeVersion": 1,
"position": [
900,
300
]
},
{
"parameters": {
"conditions": {
"string": [
{
"value1": "={{$json.data.severity}}",
"operation": "equal",
"value2": "critical"
}
]
}
},
"id": "if-webhook-critical",
"name": "Webhook Critical?",
"type": "n8n-nodes-base.if",
"typeVersion": 1,
"position": [
460,
500
]
},
{
"parameters": {
"message": "\ud83d\udea8 CRITICAL PERFORMANCE ALERT!\n\nType: {{$json.type}}\nResource: {{$json.resource_type}} {{$json.resource_id}}\nValue: {{$json.value}}%\nThreshold: {{$json.threshold}}%\n\n{{$json.message}}\n\nImmediate action required!",
"chatId": "@proxmox_alerts"
},
"id": "notify-critical-alert",
"name": "Notify Critical Alert",
"type": "n8n-nodes-base.telegram",
"typeVersion": 1,
"position": [
1120,
200
]
},
{
"parameters": {
"message": "\u26a0\ufe0f Performance Warning\n\nType: {{$json.type}}\nResource: {{$json.resource_type}} {{$json.resource_id}}\nValue: {{$json.value}}%\nThreshold: {{$json.threshold}}%\n\n{{$json.message}}",
"chatId": "@proxmox_alerts"
},
"id": "notify-warning-alert",
"name": "Notify Warning Alert",
"type": "n8n-nodes-base.telegram",
"typeVersion": 1,
"position": [
1120,
400
]
},
{
"parameters": {
"message": "\ud83d\udea8 CRITICAL: {{$json.data.message}}\n\nAlert Type: {{$json.data.alert_type}}\nSeverity: {{$json.data.severity}}\nResource: {{$json.data.resource.resource_type}} {{$json.data.resource.resource_id}}\n\nTime: {{$json.timestamp}}\n\nImmediate investigation required!",
"chatId": "@proxmox_alerts"
},
"id": "notify-webhook-critical",
"name": "Notify Webhook Critical",
"type": "n8n-nodes-base.telegram",
"typeVersion": 1,
"position": [
680,
450
]
},
{
"parameters": {
"message": "\u26a0\ufe0f Performance Alert: {{$json.data.message}}\n\nAlert Type: {{$json.data.alert_type}}\nSeverity: {{$json.data.severity}}\nResource: {{$json.data.resource.resource_type}} {{$json.data.resource.resource_id}}\n\nTime: {{$json.timestamp}}",
"chatId": "@proxmox_alerts"
},
"id": "notify-webhook-warning",
"name": "Notify Webhook Warning",
"type": "n8n-nodes-base.telegram",
"typeVersion": 1,
"position": [
680,
550
]
},
{
"parameters": {
"url": "http://proxmox-mcp-server:8080/api/v1/ai/analyze-performance",
"authentication": "genericCredentialType",
"genericAuthType": "httpHeaderAuth",
"httpHeaderAuth": {
"name": "Authorization",
"value": "Bearer {{$credentials.proxmox_api_token}}"
},
"sendBody": true,
"bodyParameters": {
"parameters": [
{
"name": "resource_type",
"value": "={{$json.resource_type}}"
},
{
"name": "resource_id",
"value": "={{$json.resource_id}}"
},
{
"name": "alert_data",
"value": "={{$json}}"
}
]
},
"options": {}
},
"id": "get-ai-recommendations",
"name": "Get AI Recommendations",
"type": "n8n-nodes-base.httpRequest",
"typeVersion": 3,
"position": [
1340,
200
]
},
{
"parameters": {
"message": "\ud83e\udd16 AI Performance Analysis\n\nResource: {{$json.resource_type}} {{$json.resource_id}}\n\nRecommendations:\n{{$json.ai_recommendations}}\n\nAutomated Suggestions:\n{{#each automated_suggestions}}- {{this}}\n{{/each}}",
"chatId": "@proxmox_alerts"
},
"id": "send-ai-recommendations",
"name": "Send AI Recommendations",
"type": "n8n-nodes-base.telegram",
"typeVersion": 1,
"position": [
1560,
200
]
}
],
"connections": {
"Performance Check (5min)": {
"main": [
[
{
"node": "Get Cluster Resources",
"type": "main",
"index": 0
}
]
]
},
"Performance Alert Webhook": {
"main": [
[
{
"node": "Webhook Critical?",
"type": "main",
"index": 0
}
]
]
},
"Get Cluster Resources": {
"main": [
[
{
"node": "Analyze Performance",
"type": "main",
"index": 0
}
]
]
},
"Analyze Performance": {
"main": [
[
{
"node": "Critical Alert?",
"type": "main",
"index": 0
}
]
]
},
"Critical Alert?": {
"main": [
[
{
"node": "Notify Critical Alert",
"type": "main",
"index": 0
}
],
[
{
"node": "Notify Warning Alert",
"type": "main",
"index": 0
}
]
]
},
"Webhook Critical?": {
"main": [
[
{
"node": "Notify Webhook Critical",
"type": "main",
"index": 0
}
],
[
{
"node": "Notify Webhook Warning",
"type": "main",
"index": 0
}
]
]
},
"Notify Critical Alert": {
"main": [
[
{
"node": "Get AI Recommendations",
"type": "main",
"index": 0
}
]
]
},
"Get AI Recommendations": {
"main": [
[
{
"node": "Send AI Recommendations",
"type": "main",
"index": 0
}
]
]
}
},
"active": true,
"settings": {},
"versionId": "1",
"id": "performance-monitoring",
"tags": [
"proxmox",
"performance",
"monitoring",
"alerts"
]
}
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About this workflow
Proxmox Performance Monitoring. Uses httpRequest, telegram. Scheduled trigger; 12 nodes.
Source: https://github.com/adrianlizman/proxmox-mcp-server-v2/blob/Main/workflows/performance-monitoring.json — original creator credit. Request a take-down →
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