The workflow JSON
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{
"name": "Hydra Health Digest",
"nodes": [
{
"parameters": {
"rule": {
"interval": [
{
"field": "hours",
"hoursInterval": 12
}
]
}
},
"id": "schedule-trigger",
"name": "Every 12 Hours",
"type": "n8n-nodes-base.scheduleTrigger",
"typeVersion": 1.1,
"position": [
0,
0
]
},
{
"parameters": {
"url": "http://192.168.1.244:9090/api/v1/targets",
"options": {}
},
"id": "get-prometheus-targets",
"name": "Get Prometheus Targets",
"type": "n8n-nodes-base.httpRequest",
"typeVersion": 4.1,
"position": [
220,
-100
]
},
{
"parameters": {
"url": "http://192.168.1.250:5000/v1/model",
"options": {
"timeout": 10000
}
},
"id": "get-tabby-model",
"name": "Get TabbyAPI Model",
"type": "n8n-nodes-base.httpRequest",
"typeVersion": 4.1,
"position": [
220,
0
],
"continueOnFail": true
},
{
"parameters": {
"url": "http://192.168.1.203:11434/api/tags",
"options": {
"timeout": 10000
}
},
"id": "get-ollama-models",
"name": "Get Ollama Models",
"type": "n8n-nodes-base.httpRequest",
"typeVersion": 4.1,
"position": [
220,
100
],
"continueOnFail": true
},
{
"parameters": {
"url": "http://192.168.1.244:6333/collections",
"options": {
"timeout": 10000
}
},
"id": "get-qdrant-collections",
"name": "Get Qdrant Collections",
"type": "n8n-nodes-base.httpRequest",
"typeVersion": 4.1,
"position": [
220,
200
],
"continueOnFail": true
},
{
"parameters": {
"mode": "runOnceForAllItems",
"jsCode": "// Aggregate health status from all inputs\nconst prometheus = $('Get Prometheus Targets').first().json;\nconst tabby = $('Get TabbyAPI Model').first().json;\nconst ollama = $('Get Ollama Models').first().json;\nconst qdrant = $('Get Qdrant Collections').first().json;\n\n// Parse Prometheus targets\nlet healthyTargets = 0;\nlet unhealthyTargets = [];\n\nif (prometheus?.data?.activeTargets) {\n for (const target of prometheus.data.activeTargets) {\n if (target.health === 'up') {\n healthyTargets++;\n } else {\n unhealthyTargets.push(`${target.labels.job}: ${target.labels.instance}`);\n }\n }\n}\n\n// Check TabbyAPI\nconst tabbyStatus = tabby?.model_name ? `Loaded: ${tabby.model_name}` : 'DOWN or no model loaded';\n\n// Check Ollama\nlet ollamaModels = [];\nif (ollama?.models) {\n ollamaModels = ollama.models.map(m => m.name);\n}\nconst ollamaStatus = ollamaModels.length > 0 ? `${ollamaModels.length} models available` : 'DOWN or no models';\n\n// Check Qdrant\nlet qdrantCollections = [];\nif (qdrant?.result?.collections) {\n qdrantCollections = qdrant.result.collections.map(c => c.name);\n}\nconst qdrantStatus = qdrantCollections.length > 0 ? `${qdrantCollections.length} collections` : 'DOWN or empty';\n\n// Build digest\nconst timestamp = new Date().toISOString();\nconst allHealthy = unhealthyTargets.length === 0 && tabby?.model_name && ollamaModels.length > 0;\n\nconst digest = {\n timestamp,\n overall_status: allHealthy ? 'HEALTHY' : 'DEGRADED',\n prometheus: {\n healthy_targets: healthyTargets,\n unhealthy: unhealthyTargets\n },\n tabbyapi: {\n status: tabbyStatus,\n healthy: !!tabby?.model_name\n },\n ollama: {\n status: ollamaStatus,\n models: ollamaModels.slice(0, 5),\n healthy: ollamaModels.length > 0\n },\n qdrant: {\n status: qdrantStatus,\n collections: qdrantCollections,\n healthy: qdrantCollections.length > 0\n },\n summary: `Hydra Cluster: ${allHealthy ? 'All systems operational' : 'Some issues detected'}`\n};\n\nreturn [{ json: digest }];"
},
"id": "aggregate-health",
"name": "Aggregate Health",
"type": "n8n-nodes-base.code",
"typeVersion": 2,
"position": [
480,
50
]
},
{
"parameters": {
"conditions": {
"string": [
{
"value1": "={{ $json.overall_status }}",
"operation": "equals",
"value2": "DEGRADED"
}
]
}
},
"id": "check-degraded",
"name": "Is Degraded?",
"type": "n8n-nodes-base.if",
"typeVersion": 1,
"position": [
700,
50
]
},
{
"parameters": {
"content": "## Hydra Health Digest\n\n**Status:** {{ $json.overall_status }}\n**Time:** {{ $json.timestamp }}\n\n### Prometheus Targets\n- Healthy: {{ $json.prometheus.healthy_targets }}\n- Unhealthy: {{ $json.prometheus.unhealthy.length > 0 ? $json.prometheus.unhealthy.join(', ') : 'None' }}\n\n### TabbyAPI\n- {{ $json.tabbyapi.status }}\n\n### Ollama\n- {{ $json.ollama.status }}\n\n### Qdrant\n- {{ $json.qdrant.status }}\n\n---\n{{ $json.summary }}",
"options": {}
},
"id": "format-report",
"name": "Format Report",
"type": "n8n-nodes-base.markdown",
"typeVersion": 1,
"position": [
920,
-50
]
},
{
"parameters": {
"content": "## ALERT: Hydra Cluster Degraded\n\n**Status:** {{ $json.overall_status }}\n**Time:** {{ $json.timestamp }}\n\n### Issues Detected\n\n{{ $json.prometheus.unhealthy.length > 0 ? '**Prometheus Targets Down:**\\n' + $json.prometheus.unhealthy.join('\\n') : '' }}\n\n{{ !$json.tabbyapi.healthy ? '**TabbyAPI:** ' + $json.tabbyapi.status : '' }}\n\n{{ !$json.ollama.healthy ? '**Ollama:** ' + $json.ollama.status : '' }}\n\n{{ !$json.qdrant.healthy ? '**Qdrant:** ' + $json.qdrant.status : '' }}\n\n---\n**Action Required:** Check failed services",
"options": {}
},
"id": "format-alert",
"name": "Format Alert",
"type": "n8n-nodes-base.markdown",
"typeVersion": 1,
"position": [
920,
150
]
}
],
"connections": {
"Every 12 Hours": {
"main": [
[
{
"node": "Get Prometheus Targets",
"type": "main",
"index": 0
},
{
"node": "Get TabbyAPI Model",
"type": "main",
"index": 0
},
{
"node": "Get Ollama Models",
"type": "main",
"index": 0
},
{
"node": "Get Qdrant Collections",
"type": "main",
"index": 0
}
]
]
},
"Get Prometheus Targets": {
"main": [
[
{
"node": "Aggregate Health",
"type": "main",
"index": 0
}
]
]
},
"Get TabbyAPI Model": {
"main": [
[
{
"node": "Aggregate Health",
"type": "main",
"index": 0
}
]
]
},
"Get Ollama Models": {
"main": [
[
{
"node": "Aggregate Health",
"type": "main",
"index": 0
}
]
]
},
"Get Qdrant Collections": {
"main": [
[
{
"node": "Aggregate Health",
"type": "main",
"index": 0
}
]
]
},
"Aggregate Health": {
"main": [
[
{
"node": "Is Degraded?",
"type": "main",
"index": 0
}
]
]
},
"Is Degraded?": {
"main": [
[
{
"node": "Format Alert",
"type": "main",
"index": 0
}
],
[
{
"node": "Format Report",
"type": "main",
"index": 0
}
]
]
}
},
"settings": {
"executionOrder": "v1"
},
"staticData": null,
"tags": [],
"triggerCount": 1,
"active": false,
"versionId": "1"
}
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About this workflow
Hydra Health Digest. Uses httpRequest. Scheduled trigger; 9 nodes.
Source: https://github.com/Dirty13itch/hydra/blob/66c6456704def5d441d49aa654a6dbb6c1c02865/n8n-workflows/health-digest.json — original creator credit. Request a take-down →
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