claude-memory/graph/solutions/n8n-claude-code-automated-server-monitoring-system-62ee21.md

id	type	title	tags	importance	confidence	created	updated	relations
62ee21e8-2b56-4d38-a73d-47e2724f08c6	solution	N8N + Claude Code Automated Server Monitoring System	n8n claude-code automation docker monitoring homelab discord ssh proxmox	0.9	0.8	2025-12-20T04:35:53.428069+00:00	2026-03-04T17:05:57.723346+00:00	target type direction strength 775506ce-ed06-4c36-95f3-73379855b44a BUILDS_ON outgoing 0.5 target type direction strength edge_id 7fdc5ceb-4b8c-426d-8492-948d106f92bb BUILDS_ON incoming 0.9 4fe26e78-998a-4524-8323-63b82348c1ca target type direction strength edge_id aab3d007-0cdf-4a4f-9b55-096ea4bdc168 BUILDS_ON incoming 0.8 dde412b4-e0ee-4781-b1af-07cb3290d740 target type direction strength edge_id fe9a0055-babb-4809-8f0b-7a471532503a BUILDS_ON incoming 0.8 6c3022f5-2311-4e22-9f9a-816cf68952dc target type direction strength edge_id 089f4cd8-4b2b-49a5-aac1-af2811b8ea7d RELATED_TO incoming 0.8 0645a098-9a7b-4c7e-969c-9c15ad0ef449 target type direction strength edge_id 8023fae6-eec1-4c93-bac8-1bd85dd61bae BUILDS_ON incoming 0.73 02222313-fdd0-40aa-aa9d-cb66c6a309d6 target type direction strength edge_id cb5e8814-f689-4de0-8854-823358706dec RELATED_TO incoming 0.89 db026c0c-561b-4707-a639-e84fd30796bf target type direction strength edge_id b27fb831-811e-4103-b5f1-3c36d5b1ad20 RELATED_TO incoming 0.73 15fd8a10-633a-4e2d-9aa8-711c10c10ecf target type direction strength edge_id dfe48a70-b8ab-4bb5-a3d8-6116fa498168 RELATED_TO incoming 0.8 ceab40c6-01c6-4e31-959b-4b6ef9878bcf target type direction strength edge_id 06101183-a78b-4852-86eb-cae5557ace8c RELATED_TO incoming 0.88 36bdf4ec-3059-471b-9a5d-6ab0f588c095 target type direction strength edge_id c684a1ea-bdb6-4e4b-9416-e50e471221a0 BUILDS_ON incoming 0.84 d78df359-2844-4280-ad56-4a8dd16d6b7f target type direction strength edge_id 67898e52-470a-470e-b149-43fef0047ae9 BUILDS_ON incoming 0.9 e8d32f61-8e04-4d96-bf73-c12011bdbde4 target type direction strength edge_id 967ad46d-ba89-4207-b870-db4b8558f2bb RELATED_TO incoming 0.76 79d285bc-32d6-4616-80ac-b2cda7684495 target type direction strength edge_id 1177d1f5-6df7-42ae-beef-bbd6b22d2fae RELATED_TO incoming 0.71 cc037348-44c5-467e-a9f1-8866bd4773c2 target type direction strength edge_id be0bda86-d893-4f86-97c4-0ca4e1073121 BUILDS_ON incoming 0.78 98dd95aa-3b6e-4b89-aa90-5877eb37e1a2 target type direction strength edge_id 346c5a34-3fed-44ff-832a-b0c9eb42ca88 BUILDS_ON incoming 0.73 285800e7-a6b0-4cf2-b017-91b209ef61bd target type direction strength edge_id c4be970f-3516-4cce-8d0e-96941811a5e5 RELATED_TO incoming 0.84 e85e5812-8868-4d4f-b6f9-c3422c094485 target type direction strength edge_id c4b2f42d-b443-447f-8a05-bba099e06036 RELATED_TO incoming 0.74 2b3d8278-ab2c-45a0-a148-d321a49a7c08 target type direction strength edge_id 1df35c2c-3749-4777-af9f-c6e2e5111979 RELATED_TO incoming 0.76 a649f391-20c5-43a1-a4c3-5b300f02d43f target type direction strength edge_id 6c51ddeb-559e-4997-9d7e-c8891b05dc84 RELATED_TO incoming 0.72 bf856749-1881-4fba-a92a-dde070f24720 target type direction strength edge_id 4c3c7a86-46b6-4d42-a966-35071ba3bfe1 BUILDS_ON incoming 0.67 7e3aa1c6-72bf-42f9-898a-6bafdccdab26 target type direction strength edge_id 5cdfc099-7916-440a-a711-1a47ad8dc3bd RELATED_TO incoming 0.76 33abbe71-714e-41c5-b6e1-bbf2194d3e86 target type direction strength edge_id d0ac9986-d5a7-4c38-acb2-5110abcbc870 SOLVES outgoing 0.69 288b660f-704c-4cff-a560-1646a2c08434

Built automated server health monitoring with N8N and Claude Code headless mode.

Architecture:

• Claude Code LXC (10.10.0.148, CT 300) runs diagnostics
• N8N (10.10.0.210) triggers checks every 5 minutes
• Two-stage cost optimization: free Python health check, Claude only on issues
• SSH chain: N8N → Claude LXC → Target servers

Key Components:

• server-diagnostics skill at ~/.claude/skills/server-diagnostics/
• health-check.sh: Free detection script (grep for exited/stopped containers)
• remediate.sh: Claude-powered analysis and auto-fix
• Discord webhook for alerts

Lessons Learned:

• Docker 20.10 doesn't support --format 'json', use Go templates instead
• N8N SSH node has quoting issues - use wrapper scripts
• Discord embeds don't support markdown tables - use bullet points
• Ubuntu 22.04 LXC template failed, 20.04 works
• Python 3.8 needs Optional[str] not str | None syntax

Cost Model:

• Healthy checks: $0 (just Python script)
• Issues found: ~$0.10-0.15 (Claude remediation)

Bonus Fixes:

• avahi-daemon was consuming 67+ hours CPU responding to Docker veth changes
• GNOME desktop services (gdm, gvfs) wasting ~12% CPU on headless server