Command Executor Service

This workflow automates safe command execution via webhook, replacing manual SSH sessions or local scripting that take 10-20 minutes per task for DevOps teams. The Command Webhook receives POST requests with command/working directory/timeout, the Validate Input Set node sanitizes, the Check Input Valid If node routes, the Security Validation Set node cleans and whitelists, the Check Security If node blocks unsafe ops, the Rate Limit Check Set node throttles abuse, the Execute Command node runs in /tmp, the Check Execution Success If node verifies exit code, the Log Command Attempt Set node audits, and Success Response Respond to Webhook returns stdout/stderr. Error paths (Input/Security/Execution Error Response) handle failures. It helps DevOps in small infra teams (5-20 staff) executing 50+ commands weekly, enabling remote, logged runs without access risks, reducing errors and compliance issues for CI/CD or monitoring.\n\nThis workflow saves 3-5 hours weekly on 50 executions, enhancing security by 95%. Use cases include automated server checks for startups, script testing for agencies. Suitable for small-mid teams. Requires n8n (free self-hosted or $20/month cloud). Scalable to 200 executions/day with cloud tiers.\n\nInstall n8n via n8n.io or cloud.n8n.io. No external services needed. Import JSON, configure Command Webhook POST 'execute-command' with header auth (x-api-key). Update Security Validation Set whitelist as needed. Webhook URL: https://your-n8n-instance/webhook/execute-command.\n\nTest with Postman: {command: 'ls -la', workingDirectory: '/tmp'}. Verify stdout in response. Errors: Unsafe command (403), no command (400). Activate webhook. Monitor dashboard weekly. Optimize whitelist; refresh auth quarterly.", "businessValue": "Saves 3-5 hours/week on 50 command executions", "setupTime": "15-25 minutes", "difficulty": "Beginner", "requirements": ["n8n instance (free self-hosted or $20/month cloud)"], "useCase": "Secure remote command execution for DevOps"