I am super new to linux and everything so the whole setup that i have is a collection of copied tutorials.

I have followed the instructions on setting up repository hosting
https://secure.phabricator.com/book/phabricator/article/diffusion_hosting/

And clearly failed. When I try to do clone of my repository i get

< HTTP/1.1 500 Error 1: sudo: a password is required
< Content-Type: text/html; charset=UTF-8
< Date: Thu, 07 Apr 2016 08:08:18 GMT
< Server: Apache/2.2.31 (Amazon)
< X-Powered-By: PHP/7.0.4
< Content-Length: 42
< Connection: keep-alive
<
* Connection #1 to host phabricator.***.com left intact
fatal: unable to access 'http://phabricator.*****.com/diffusion/1/****_web.git/': The requested URL returned error: 500

In my sudoers file I have included this. Phabricator is main user i run phabricator daemons with. I do not want to give it so much freedom, but most of the installation tutorials suggest doing so. Could you let me know what permissions I need to give it also?

The part I don't understand is how does phabricator know who www-user is. I know for vcs user I set it up in the config. But for www-user I didn't tell phabricator which user to use for http access. From what i understood its some system user.

phabricator ALL=(ALL) NOPASSWD: ALL
vcsphab ALL=(phabricator) SETENV: NOPASSWD: /usr/bin/git-upload-pack, /usr/bin/git-receive-pack
www-user ALL=(phabricator) SETENV: NOPASSWD: /usr/bin/git, /usr/libexec/git-core/git-http-backend, /usr/bin/git-upload-pack

The part I don't understand is how does phabricator know who www-user is. I know for vcs user I set it up in the config. But for www-user I didn't tell phabricator which user to use for http access. From what i understood that it is some system user. I dont know which one. Below is the list of all users my machine has. I added www-user myself.

root
bin
daemon
adm
lp
sync
shutdown
halt
mail
uucp
operator
games
gopher
ftp
nobody
rpc
ntp
saslauth
mailnull
smmsp
rpcuser
nfsnobody
sshd
dbus
ec2-user
apache
mysql
phabricator
vcsphab
www-user