ssh -t 和 heredoc 一起用，sudo 拿不到终端：a terminal is required to read the password

Domain: devops · Evidence E1 — Maintainer reviewed

sshsudoheredocttydeploymentbash

Summary

部署脚本里 `ssh host 'sudo ...'` 报 `sudo: a terminal is required to read the password; either use the -S option...`，脚本卡住或直接失败。