[salt-users] How do I extends/override from base and make the base as centralized? and some other queries.

*Here base is: * /data/salt/states
*Project 01 Base:* /data/salt/project01
*Project 02 Base:* /data/salt/project02

file_roots:
   base:
     - /data/salt/states
   project01:
     - /data/salt/project01
   project02:
     - /data/salt/project02


/data

└── salt

     ├── states
<=========== Is it possible to make "base" as centralized stuff?

     │ ├── appserver

     │ │ ├── tomcat

     │ │ │ └── init.sls

     │ │ └── weblogic

     │ │ └── init.sls

     │ ├── common

     │ │ └── init.sls

     │ ├── webserver

     │ │ ├── apache

     │ │ │ └── init.sls

     │ │ ├── lighttpd

     │ │ │ └── init.sls

     │ │ └── nginx

     │ │ └── init.sls

     │ ├── database

     │ │ ├── mariadb

     │ │ │ └── init.sls

     │ │ ├── mysql

     │ │ │ └── init.sls

     │ │ └── oracle

     │ │ └── init.sls

     │ ├── top.sls <======= Is it
possible to include all project (Project01, Project01 , .. Project0n) in
top.sls?

     │ ├── project01-prd.sls <======= Is it
possible to add Project01 Production related minions entry in this file?

     │ ├── project01-ppd.sls <======= Is it
possible to add Project01 Pre-production related minions entry in this
file?

     │ ├── project02-prd.sls <======= Is it
possible to add Project02 Production related minions entry in this file?
possible to add Project02 Pre-production related minions entry in this
file?
     ├── project01

     │ ├── preprod

     │ │ ├── states

     │ │ │ ├── webserver

     │ │ │ │ └── apache

     │ │ │ │ └── init.sls <======= Is
it possible to include it from base state webserver.apache and override Id
declaration/Names declaration and add extra things that project require?

     │ │ │ ├── appserver

     │ │ │ │ └── tomcat

     │ │ │ │ └── init.sls <======= Is
it possible to include it from base state appserver.tomcat and override Id
declaration/Names declaration and add extra things that project require?

     │ │ │ ├── common
     │ │ │ └── database

     │ │ └── pillar

     │ └── prod

     │ ├── states

     │ │ ├── webserver

     │ │ │ └── apache

     │ │ │ └── init.sls <=======
same as above

     │ │ └── appserver

     │ │ └── tomcat

     │ │ └── init.sls <=======
same as above

     │ └── pillar

     ├── project02

     │ ├── preprod

     │ │ ├── states

     │ │ │ ├── webserver

     │ │ │ │ └── nginx

     │ │ │ │ └── init.sls <=======
same as above

     │ │ │ ├── database

     │ │ │ │ └── mysql

     │ │ │ │ └── init.sls <=======
same as above

     │ │ │ ├── appserver

     │ │ │ │ └── tomcat

     │ │ │ │ └── init.sls <=======
same as above

     │ │ │ ├── common

     │ │ │ └── tools

     │ │ └── pillar

     │ └── prod

     │ ├── states

     │ │ ├── database

     │ │ │ └── mysql

     │ │ │ └── init.sls <=======
same as above

     │ │ ├── tools

     │ │ │ └── init.sls

     │ │ ├── webserver

     │ │ │ └── nginx

     │ │ │ └── init.sls <=======
same as above

     │ │ └── appserver

     │ │ └── tomcat

     │ │ └── init.sls <=======
same as above

     │ └── pillar

     └── Pillar


Here I want to create a base as centralized stuff of software's and
configurations. If project has some extra thing to add in software it will
add or override the salt id/name.

So I was trying the same thing here but seems not working for me, I thing
doing some silly mistake, as I'm newbie to salt.

*Here my base is:*
file_roots:
   base:
     - /data/salt/states
   project01:
     - /data/salt/project01

*vim /data/salt/states/webserver/nginx/init.sls*

# Installing package and service
nginx:
   pkg:
     - installed
   service:
     - running
     - enable: True
     - require:
       - pkg: nginx
     - watch:
       - file: /etc/nginx/conf.d/vhost.conf

# Installing virtual hosts
/etc/nginx/conf.d/vhost.conf:
   file.managed:
     - source: salt://webserver/nginx/files/vhost.conf.j2
     - template: jinja
/etc/nginx/conf.d/proxy_params.conf:
   file.managed:
     - source: salt://webserver/nginx/files/proxy_params.conf

*vim /data/salt/project01/webserver/nginx/init.sls*

include:
   - base: webserver.nginx
extend:
   /etc/nginx/conf.d/vhost.conf:
     file.managed:
       - source: salt://webserver/nginx/files/vhost.conf.j2
       - template: jinja

*vim /data/salt/states/top.sls*

Here I want to override/extends "/etc/nginx/conf.d/vhost.conf" salt ID, but
it doesn't take the Jinja file from project01 (
/data/salt/project01/webserver/nginx/files/vhost.conf.j2) .
It takes the file from jinja file from (
/data/salt/states/webserver/nginx/files/vhost.conf.j2), What changes should
  I do so that it will consider Jinja file from project01 (
/data/salt/project01/webserver/nginx/files/vhost.conf.j2) and not the
default one.

*Some more question: *

1) Is it possible to run highstate for project01 only, like "salt '*'
state.highstate --top = project01-ppd.sls"?

2) For one project there are 2 environment running one is Pre-production
and other is production, for that now I have created 2 states

Here we have written same states for pre-production and production, excepts
few differences like pillar MySQL database user and password, because they
are different in pre-production and production. Is there any way to write
state once for pre-production and production and use pillar values
according to their environment?


Thanks
--Pankaj