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I am trying to run the following command as deploy from Java (the JVM is running as the user tomcat):

sudo -u deploy /path/to/my/bash/script.sh PARAM1 PARAM2

My sudoers file has the following in it:

tomcat ALL=(deploy) NOPASSWD: /path/to/my/bash/script.sh *

But I get sorry, you must have a tty to run sudo in my Java application. Therefore, I changed my invocation to be:

su --session-command="/path/to/my/bash/script.sh PARAM1 PARAM2" deploy

But now I get standard in must be a tty in Java.

I have checked, and by doing the following I can see that sudo doesn't prompt for a password but su does.

[root@mybox bin]# sudo su tomcat
[tomcat@mybox bin]$ sudo -u deploy /path/to/my/bash/script.sh PARAM1 PARAM2
output of script with PARAM1 PARAM2
[tomcat@mybox bin]$ su --session-command="/path/to/my/bash/script.sh PARAM1 PARAM2" deploy
Password:
su: incorrect password

Obviously sudoers is only for sudo (hence the name). Is there another way of running the command as deploy without a password prompt?

I am developing this on centos 6.3 but it will eventually be running on RHEL5.

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1 Answer

up vote 2 down vote accepted

You can relax the requiretty setting in the /etc/sudoer.

excerpt from sudoers man page

requiretty      If set, sudo will only run when the user is logged in to a real 
                tty. When this flag is set, sudo can only be run from a login
                session and not via other means such as cron(8) or cgi-bin 
                scripts.  This flag is off by default.

By default this line says everyone must have tty access when using sudo:

Defaults requiretty

You can relax it per user and/or group like this:

$ sudo visudo
# group
Defaults:%group !requiretty
# user
Defaults:user   !requiretty

note: The ! means not.

See the sudo & sudoers man pages for more details.

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