{ "name": "Automated SSL/Certificate Checker", "nodes": [ { "parameters": { "rule": { "interval": [ { "field": "weeks", "triggerAtDay": [ 1 ], "triggerAtHour": 9 } ] } }, "id": "schedule-trigger", "name": "Schedule Trigger", "type": "n8n-nodes-base.scheduleTrigger", "typeVersion": 1.2, "position": [ 240, 304 ] }, { "parameters": { "assignments": { "assignments": [ { "id": "domains", "name": "domains", "type": "array", "value": "=[\"proxmox\", \"homeassistant\", \"n8n\", \"uptimekuma\", \"pihole\", \"grafana\", \"vaultwarden\"]" } ] }, "options": { } }, "id": "set-domains", "name": "Set Domains", "type": "n8n-nodes-base.set", "typeVersion": 3.4, "position": [ 464, 304 ] }, { "parameters": { "fieldToSplitOut": "domains", "options": { } }, "id": "split-domains", "name": "Split Domains", "type": "n8n-nodes-base.splitOut", "typeVersion": 1, "position": [ 688, 304 ] }, { "parameters": { "method": "POST", "url": "http://nmap-api:3001/ssl-check", "sendBody": true, "specifyBody": "json", "jsonBody": "={{ { \"host\": $json.domains, \"port\": 443, \"timeoutMs\": 5000 } }}", "options": { "response": { "response": { "neverError": true, "responseFormat": "json" } }, "timeout": 20000 } }, "id": "check-certificate", "name": "Check Certificate", "type": "n8n-nodes-base.httpRequest", "typeVersion": 4.3, "position": [ 912, 304 ], "continueOnFail": true }, { "parameters": { "jsCode": "const payload = $input.first().json || {};\n\nconst data = payload \u0026\u0026 typeof payload.body === \u0027object\u0027 ? payload.body : payload;\nconst domain = String(data.host || payload.domains || payload.domain || \u0027unknown\u0027);\n\nif (!data.success || !data.certificate) {\n return [{\n json: {\n domain,\n error: String(data.error || payload.error || \u0027Certificate check failed\u0027).substring(0, 260),\n daysRemaining: 999,\n status: \u0027ERROR\u0027\n }\n }];\n}\n\nconst cert = data.certificate;\nconst expiryDate = cert.validToISO ? new Date(cert.validToISO) : new Date(cert.validTo || \u0027\u0027);\nconst daysRemaining = Number.isFinite(Number(cert.daysRemaining))\n ? Number(cert.daysRemaining)\n : Math.floor((expiryDate - new Date()) / (1000 * 60 * 60 * 24));\n\nreturn [{\n json: {\n domain,\n expiryDate: expiryDate.toISOString(),\n daysRemaining,\n status: cert.status || (daysRemaining \u003c 0 ? \u0027EXPIRED\u0027 : daysRemaining \u003c 7 ? \u0027EXPIRING_SOON\u0027 : \u0027OK\u0027),\n issuer: cert.issuer || {},\n subject: cert.subject || {}\n }\n}];" }, "id": "parse-certificate", "name": "Parse Certificate", "type": "n8n-nodes-base.code", "typeVersion": 2, "position": [ 1120, 304 ] }, { "parameters": { "conditions": { "options": { "leftValue": "", "caseSensitive": true, "typeValidation": "strict", "version": 2 }, "combinator": "or", "conditions": [ { "id": "expiring-soon", "operator": { "type": "number", "operation": "lt" }, "leftValue": "={{ $json.daysRemaining }}", "rightValue": 7 }, { "id": "expired", "operator": { "type": "string", "operation": "equals" }, "leftValue": "={{ $json.status }}", "rightValue": "EXPIRED" } ] }, "options": { } }, "id": "filter-expiring", "name": "Filter Expiring", "type": "n8n-nodes-base.filter", "typeVersion": 2.2, "position": [ 1344, 304 ] }, { "parameters": { "conditions": { "options": { "leftValue": "", "caseSensitive": true, "typeValidation": "strict", "version": 2 }, "combinator": "and", "conditions": [ { "id": "has-items", "operator": { "type": "number", "operation": "gt" }, "leftValue": "={{ $input.all().length }}", "rightValue": 0 } ] }, "options": { } }, "id": "if-has-expiring", "name": "Has Expiring Certs?", "type": "n8n-nodes-base.if", "typeVersion": 2.2, "position": [ 1568, 304 ] }, { "parameters": { "jsCode": "const items = $input.all();\n\nlet message = \u0027SSL Certificate Alert\\n\\n\u0027;\nmessage += `Found ${items.length} certificate(s) expiring soon:\\n\\n`;\n\nfor (const item of items) {\n const data = item.json;\n const statusIcon = data.status === \u0027EXPIRED\u0027 ? \u0027[EXPIRED]\u0027 : \u0027[WARN]\u0027;\n message += `${statusIcon} ${data.domain}\\n`;\n message += ` Days remaining: ${data.daysRemaining}\\n`;\n message += ` Expires: ${new Date(data.expiryDate).toLocaleDateString()}\\n\\n`;\n}\n\nmessage += \u0027Check and renew certificates ASAP.\u0027;\n\nreturn [{ json: { message, count: items.length } }];" }, "id": "format-alert", "name": "Format Alert", "type": "n8n-nodes-base.code", "typeVersion": 2, "position": [ 1792, 208 ] }, { "parameters": { "method": "POST", "url": "[REDACTED]", "sendBody": true, "specifyBody": "json", "jsonBody": "={\"content\": \"{{ $json.message }}\"}", "options": { } }, "id": "send-discord", "name": "Send Discord Alert", "type": "n8n-nodes-base.httpRequest", "typeVersion": 4.3, "position": [ 2000, 112 ] }, { "parameters": { "method": "POST", "url": "[REDACTED]", "sendBody": true, "specifyBody": "json", "jsonBody": "={\"chat_id\": \"YOUR_CHAT_ID\", \"text\": \"{{ $json.message }}\", \"parse_mode\": \"Markdown\"}", "options": { } }, "id": "send-telegram", "name": "Send Telegram Alert", "type": "n8n-nodes-base.httpRequest", "typeVersion": 4.3, "position": [ 2000, 304 ] }, { "parameters": { }, "id": "no-alert", "name": "No Alert Needed", "type": "n8n-nodes-base.noOp", "typeVersion": 1, "position": [ 1792, 400 ] }, { "parameters": { "content": "Weekly schedule → Checks SSL expiry for your services → Calculates days remaining → Alerts via Discord/Telegram if \u003c 7 days", "height": 80, "width": 704 }, "type": "n8n-nodes-base.stickyNote", "position": [ 704, -128 ], "typeVersion": 1, "id": "db405699-6e9d-433c-9327-05324a9cf553", "name": "Sticky Note" } ], "pinData": { }, "connections": { "Set Domains": { "main": [ [ { "node": "Split Domains", "type": "main", "index": 0 } ] ] }, "Split Domains": { "main": [ [ { "node": "Check Certificate", "type": "main", "index": 0 } ] ] }, "Format Alert": { "main": [ [ { "node": "Send Discord Alert", "type": "main", "index": 0 }, { "node": "Send Telegram Alert", "type": "main", "index": 0 } ] ] }, "Filter Expiring": { "main": [ [ { "node": "Has Expiring Certs?", "type": "main", "index": 0 } ] ] }, "Schedule Trigger": { "main": [ [ { "node": "Set Domains", "type": "main", "index": 0 } ] ] }, "Check Certificate": { "main": [ [ { "node": "Parse Certificate", "type": "main", "index": 0 } ] ] }, "Parse Certificate": { "main": [ [ { "node": "Filter Expiring", "type": "main", "index": 0 } ] ] }, "Has Expiring Certs?": { "main": [ [ { "node": "Format Alert", "type": "main", "index": 0 } ], [ { "node": "No Alert Needed", "type": "main", "index": 0 } ] ] } }, "active": false, "settings": { "executionOrder": "v1", "saveDataErrorExecution": "all", "saveDataSuccessExecution": "all", "saveManualExecutions": true, "saveExecutionProgress": true, "callerPolicy": "workflowsFromSameOwner", "availableInMCP": false }, "versionId": "0fa5ee10-b735-4d8a-9f29-ac1149e26fd8", "meta": { "instanceId": "e09d1f0f8b9f78e80ac70b6dc8726dd263b0b6ffc4300b0eee3b58f6da316f29" }, "id": "dJplEhdzWGQU8LC7", "tags": [ ] }