sudo command not working in startup-script

Question

This is a part of the startup script for my compute engine instance

# Configure supervisor to run the node app.
cat >/etc/supervisor/conf.d/node-app.conf << EOF
[program:nodeapp]
directory=/opt/app
command=sudo node app.js
autostart=true
autorestart=true
user=nodeapp
environment=HOME="/home/nodeapp",USER="nodeapp",NODE_ENV="production"
stdout_logfile=syslog
stderr_logfile=syslog
EOF

If you notice this line

command=sudo node app.js

originally it was just

command=node app.js

but since my app is listening on port 80, I modified it so I could have root access. When my virtual machine starts up, it executes the script but I can't access my website, when I SSH into the instance and type

sudo node app.js

however, everything works. You can't have sudo commands in the startup script?

Answer 1

首先，您必须授予nodeapp用户sudo 访问权限。

Answer 2

如果您无论如何都以root身份运行 Node（这是使用sudo的效果），您不妨设置user=root （或完全删除该设置）并保留原始command 。