Matching Defaults entries for user on host-a:
    env_reset, mail_badpass,
    secure_path=/usr/local/sbin\:/usr/local/bin\:/usr/sbin\:/usr/bin\:/sbin\:/bin, use_pty

Runas and Command-specific defaults for user:
    Defaults!/usr/local/bin/deploy-gateway.sh !requiretty

User user may run the following commands on host-a:
    (ALL : ALL) ALL
    (ALL : ALL) ALL
