Senior LevelLaravel
How do you architect zero-downtime deployment pipelines for Laravel applications?
❓ Interview Prompt: Explain zero-downtime deployment strategies, release directory timestamping, symlink swapping, OPcache resets, and backward-compatible database migrations.
Zero-downtime deployments ensure web users experience 0 dropped requests during code updates:
Deployment Architecture:
1
Clone code into a new timestamped release folder ('releases/20260728120000').
2
Run 'composer install', compile assets, and execute backward-compatible migrations.
3
Atomically update the production 'current' symlink to the new release folder ('ln -nfs').
4
Reload PHP-FPM / Octane workers and flush OPcache.
Code Implementation Example
bash
# Atomic symlink swap step in zero-downtime deployment script
ln -nfs /var/www/app/releases/$NEW_RELEASE /var/www/app/current
php artisan octane:reload💡Atomic symlink swap command for zero-downtime application deployments.
🎯 Interview Key Takeaway
Architect zero-downtime deployments using timestamped release folders, atomic symlink swaps, and backward-compatible database migrations.
#Zero-Downtime#Deployments#Symlink Swap#Senior
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