#cloud-config
write_files:
  - path: /etc/sysctl.d/99-swappiness.conf
    content: |
      # Reduce swap usage
      vm.swappiness=10
      vm.vfs_cache_pressure=50

runcmd:
  # Create 2GB swap file
  - fallocate -l 2G /swapfile
  # Set permissions
  - chmod 600 /swapfile
  # Make swap
  - mkswap /swapfile
  # Enable swap
  - swapon /swapfile
  # Add to fstab for persistent mounting
  - echo '/swapfile none swap sw 0 0' >> /etc/fstab
  # Verify swap is active
  - swapon --show
  - free -h