Server Infrastructure & DevOps
Automasi Deployment & Troubleshooting Server
Panduan praktis mitigasi error Nginx 502, Docker OOM killer 137, hingga kalkulator rekomendasi spesifikasi RAM/CPU container.
Prosedur Darurat Troubleshooting
Warning
Nginx 502 Bad Gateway
Layanan backend PHP-FPM / Node.js mati atau tidak merespons soket Nginx.
sudo systemctl restart php8.2-fpm
sudo systemctl reload nginx
sudo systemctl reload nginx
Critical
Docker Exit Code 137
OOM (Out Of Memory) Killer mematikan container secara paksa.
dmesg -T | grep -i oom
docker run -m 2g --memory-swap 3g
docker run -m 2g --memory-swap 3g
Medium
SSH Permission Denied
Hak akses kunci publickey atau chmod folder `~/.ssh` bermasalah.
chmod 700 ~/.ssh
chmod 600 ~/.ssh/authorized_keys
chmod 600 ~/.ssh/authorized_keys
Kalkulator VM & Container Specs
Hitung perkiraan kebutuhan CPU & RAM berdasarkan jumlah container
Rekomendasi Spesifikasi Server:
Estimated Buffer +20%
4 Cores
•
8 GB RAM