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DevOps Troubleshooting Cheat Sheet

 🚀 DevOps Troubleshooting Cheat Sheet: Save Your Next On-Call Shift! 🚀

Feeling the pressure during a production incident?
🤯 Knowing the right command can be the difference between a 5-minute fix and a 5-hour outage.

I've compiled the ULTIMATE list of essential commands to tame any system chaos. Bookmark this! 🔖
👇 Your Go-To Command Library 👇

🖥 System on Fire?
top, htop, vmstat 1, iostat -xz 1

🧠 Memory Issues?
free -h, ps aux --sort=-%mem | head

💾 Disk Space Full?
df -h, du -sh /path/* | sort -rh | head -10

🌐 Network Problems?
ping, traceroute, ss -tunlp, netcat -zv host port

📜 Logs Got You Lost?
tail -f /var/log/syslog, journalctl -u service-name -f, grep -i "error" /var/log/*.log
🐳 Containers Misbehaving?
docker ps, docker logs <container_id>, docker exec -it <container_id> bash
kubectl get pods, kubectl describe pod <podname>, kubectl logs <podname>
⚙️ Process Management
ps aux | grep nginx, kill -9 <PID>, lsof -i :8080
🛡 Security & Permissions
chmod 755 file, chown user:group file, sudo ufw status

Pro Tip: Master these, and you'll not just fix problems-you'll understand them. 🧠

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