Starting Talend JobServer without sudo

The user that starts Talend JobServer needs to be allowed to start processes as other users without having to enter a password.

Procedure

Change the sudoers file on the machine that runs Talend JobServer, using the sudo visudo command.
Edit the sudoers.
Example
```
# ...
# User alias specification
User_Alias JOB_SERVER = jerry

# Cmnd alias specification
Cmnd_Alias RUN_JOB = /bin/ps, /usr/bin/java, /bin/sh, /bin/grep, /bin/kill

# ...
# Add after the line: %sudo	ALL=(ALL:ALL) ALL
JOB_SERVER      ALL=(jules,jim) NOPASSWD: RUN_JOB
```
In this example, it is assumed that user jerry will start Talend JobServer and Tasks may need to run under the existing users, jules and jim.

The Talend JobServer process started by jerry will need to be able to execute the following commands as jules or jim:
```
/bin/ps
/usr/bin/java
/bin/sh
/bin/grep
/bin/kill
```
For security reasons, do not allow more commands.

To start Talend JobServer, the user can run sh start_rs.sh instead of sudo sh start_rs.sh.

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