diff --git a/.travis.yml b/.travis.yml
index fcb405b..1d69e3a 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,65 +1,66 @@
-sudo: required
-dist: xenial
-
-language: bash
-
-notifications:
-  slack: wordops:MyZBNbI7JfhbAi3YyFckMdaa
-
-addons:
-  apt:
-    update: true
-
-git:
-  quiet: true
-
-before_install:
-  - rm -rf ~/.gnupg
-
-before_script:
-  - sudo rm -rf /etc/mysql
-  - sudo bash -c 'echo example.com > /etc/hostname'
-  - sudo apt-get -qq purge mysql* graphviz* redis*
-  - sudo apt-get -qq autoremove --purge
-  - unset LANG
-  - sudo apt-get install --assume-yes --quiet git python3-setuptools python3-dev python3-apt ccze tree
-
-script:
-  - lsb_release -a
-  - sudo bash -c 'echo -e "[user]\n\tname = abc\n\temail = root@localhost.com" > /home/travis/.gitconfig'
-  - sudo echo "Travis Banch = $TRAVIS_BRANCH"
-  - sed -i 's/# "nose"/"nose"/g' setup.py
-  - sed -i 's/# "coverage"/"coverage"/g' setup.py
-  - sed -i 's/# "Sphinx >= 1.0"/"Sphinx >= 1.0"/g' setup.py
-  - sudo bash install --travis
-  - sudo wo --help && sudo wo stack install && sudo wo stack install --proftpd
-  - sudo wo site create html.net --html && sudo wo site create php.com --php && sudo wo site create mysql.com --mysql && sudo wo site create proxy.com --proxy=127.0.0.1:3000
-  - sudo wo site create wp1.com --wp && sudo wo site create wpsc1.net --wpsc && sudo wo site create wpfc1.com --wpfc
-  - sudo wo site create wpsc-php73.net --wpsc --php73 && sudo wo site create wpfc-php73.net --wpfc --php73
-  - sudo wo site create wprocket.net --wprocket && sudo wo site create wprocket-php73.net --wprocket --php73
-  - sudo wo site create wpce.net --wpce && sudo wo site create wpce-php73.net --wpce --php73
-  - sudo wo site create wpredis.net --wpredis && sudo wo site create wpredis-php73.net --wpredis --php73
-  - sudo wo site create wpsubdir1.com --wpsubdir && sudo wo site create wpsubdir-php73.com --wpsubdir --php73
-
-  - sudo wo site create wpsubdirwpsc1.com --wpsubdir --wpsc &&  sudo wo site create wpsubdirwpsc2.com --wpsubdir --wpfc &&  sudo wo site create wpsubdirwpsc1-php73.com --wpsubdir --wpsc --php73 && sudo wo site create wpsubdirwpsc2-php73.com --wpsubdir --wpfc --php73
-  - sudo wo site create wpsubdomain1.com --wpsubdomain && sudo wo site create wpsubdomain1-php73.com --wpsubdomain --php73 && sudo wo site create wpsubdomainwpsc.org --wpsubdomain --wpsc && sudo wo site create wpsubdomainwpfc.org --wpsubdomain --wpfc && sudo wo site create wpsubdomainwpfc2.in --wpfc --wpsubdomain
-
-  - sudo wo site create 1.com --html && sudo wo site create 2.com --php && sudo wo site create 3.com --mysql
-  - sudo wo site update 1.com --wp && sudo wo site update 2.com --php73 && sudo wo site update 3.com --php73 && sudo wo site update 1.com --wpfc && sudo wo site update 1.com --wpsc && sudo wo site update 1.com --wpredis
-  - sudo wp --allow-root --info
-  - sudo wo info
-  - sudo cat /etc/nginx/nginx.conf
-  - sudo tree -L 2 /etc/nginx
-  - sudo cat /etc/mysql/my.cnf
-  - sudo wo stack upgrade --nginx --force
-  - sudo wo stack upgrade --php --force
-  - sudo wo stack upgrade --netdata --force
-  - sudo wo stack upgrade --phpmyadmin --force
-  - sudo wo stack upgrade --composer --force
-  - sudo wo stack upgrade --dashboard --force
-  - sudo wo update --travis
-  - sudo wo stack status
-  - sudo tar -I pigz  -cf wordops.tar.gz /var/log/wo
-  - curl --progress-bar --upload-file wordops.tar.gz https://transfer.vtbox.net/$(basename "wordops.tar.gz") && echo "" | sudo tee -a $HOME/.transfer.log && echo ""
-  - echo "yes" | sudo wo stack purge --all --force
-  - sudo bash install --purge
+sudo: required
+dist: xenial
+
+language: bash
+
+notifications:
+  slack: wordops:MyZBNbI7JfhbAi3YyFckMdaa
+
+addons:
+  apt:
+    update: true
+
+git:
+  quiet: true
+
+before_install:
+  - rm -rf ~/.gnupg
+
+before_script:
+  - sudo rm -rf /etc/mysql
+  - sudo bash -c 'echo example.com > /etc/hostname'
+  - sudo apt-get -qq purge mysql* graphviz* redis*
+  - sudo apt-get -qq autoremove --purge
+  - unset LANG
+  - sudo apt-get install --assume-yes --quiet git python3-setuptools python3-dev python3-apt ccze tree
+
+script:
+  - lsb_release -a
+  - sudo bash -c 'echo -e "[user]\n\tname = abc\n\temail = root@localhost.com" > /home/travis/.gitconfig'
+  - sudo echo "Travis Banch = $TRAVIS_BRANCH"
+  - sed -i 's/# "nose"/"nose"/g' setup.py
+  - sed -i 's/# "coverage"/"coverage"/g' setup.py
+  - sed -i 's/# "Sphinx >= 1.0"/"Sphinx >= 1.0"/g' setup.py
+  - sudo bash install --travis
+  - sudo wo --help && sudo wo stack install && sudo wo stack install --proftpd
+  - sudo wo site create html.net --html && sudo wo site create php.com --php && sudo wo site create mysql.com --mysql && sudo wo site create proxy.com --proxy=127.0.0.1:3000
+  - sudo wo site create wp1.com --wp && sudo wo site create wpsc1.net --wpsc && sudo wo site create wpfc1.com --wpfc
+  - sudo wo site create wpsc-php73.net --wpsc --php73 && sudo wo site create wpfc-php73.net --wpfc --php73
+  - sudo wo site create wprocket.net --wprocket && sudo wo site create wprocket-php73.net --wprocket --php73
+  - sudo wo site create wpce.net --wpce && sudo wo site create wpce-php73.net --wpce --php73
+  - sudo wo site create wpredis.net --wpredis && sudo wo site create wpredis-php73.net --wpredis --php73
+  - sudo wo site create wpsubdir1.com --wpsubdir && sudo wo site create wpsubdir-php73.com --wpsubdir --php73
+
+  - sudo wo site create wpsubdirwpsc1.com --wpsubdir --wpsc &&  sudo wo site create wpsubdirwpsc2.com --wpsubdir --wpfc &&  sudo wo site create wpsubdirwpsc1-php73.com --wpsubdir --wpsc --php73 && sudo wo site create wpsubdirwpsc2-php73.com --wpsubdir --wpfc --php73
+  - sudo wo site create wpsubdomain1.com --wpsubdomain && sudo wo site create wpsubdomain1-php73.com --wpsubdomain --php73 && sudo wo site create wpsubdomainwpsc.org --wpsubdomain --wpsc && sudo wo site create wpsubdomainwpfc.org --wpsubdomain --wpfc && sudo wo site create wpsubdomainwpfc2.in --wpfc --wpsubdomain
+
+  - sudo wo site create 1.com --html && sudo wo site create 2.com --php && sudo wo site create 3.com --mysql
+  - sudo wo site update 1.com --wp && sudo wo site update 2.com --php73 && sudo wo site update 3.com --php73 && sudo wo site update 1.com --wpfc && sudo wo site update 1.com --wpsc && sudo wo site update 1.com --wpredis
+  - sudo wp --allow-root --info
+  - sudo wo info
+  - sudo cat /etc/nginx/nginx.conf
+  - sudo tree -L 2 /etc/nginx
+  - sudo tree -L 2 /var/www
+  - sudo cat /etc/mysql/my.cnf
+  - sudo wo stack upgrade --nginx --force
+  - sudo wo stack upgrade --php --force
+  - sudo wo stack upgrade --netdata --force
+  - sudo wo stack upgrade --phpmyadmin --force
+  - sudo wo stack upgrade --composer --force
+  - sudo wo stack upgrade --dashboard --force
+  - sudo wo update --travis
+  - sudo wo stack status
+  - sudo tar -I pigz  -cf wordops.tar.gz /var/log/wo
+  - curl --progress-bar --upload-file wordops.tar.gz https://transfer.vtbox.net/$(basename "wordops.tar.gz") && echo "" | sudo tee -a $HOME/.transfer.log && echo ""
+  - echo "yes" | sudo wo stack purge --all --force
+  - sudo bash install --purge
diff --git a/wo/cli/plugins/stack_pref.py b/wo/cli/plugins/stack_pref.py
index b8290b9..7f5af9f 100644
--- a/wo/cli/plugins/stack_pref.py
+++ b/wo/cli/plugins/stack_pref.py
@@ -253,81 +253,53 @@ def post_pref(self, apt_packages, packages):
                                        .format(ngxcom),
                                        'wpsc.mustache', data)
 
-                Log.debug(self, 'Writting the nginx configuration to '
-                          'file /etc/nginx/common/wprocket-php72.conf')
-                wo_nginx = open('/etc/nginx/common/wprocket-php72.conf',
-                                encoding='utf-8', mode='w')
-                self.app.render((data), 'wprocket.mustache',
-                                out=wo_nginx)
-                wo_nginx.close()
+                WOTemplate.tmpl_render(self,
+                                       '{0}/wprocket-php72.conf'
+                                       .format(ngxcom),
+                                       'wprocket.mustache', data)
 
-                Log.debug(self, 'Writting the nginx configuration to '
-                          'file /etc/nginx/common/wpce-php72.conf')
-                wo_nginx = open('/etc/nginx/common/wpce-php72.conf',
-                                encoding='utf-8', mode='w')
-                self.app.render((data), 'wpce.mustache',
-                                out=wo_nginx)
-                wo_nginx.close()
+                WOTemplate.tmpl_render(self,
+                                       '{0}/wpce-php72.conf'
+                                       .format(ngxcom),
+                                       'wpce.mustache', data)
 
             # PHP 7.3 conf
             if os.path.isdir("/etc/nginx/common"):
                 data = dict(upstream="php73")
 
-                Log.debug(self, 'Writting the nginx configuration to '
-                          'file /etc/nginx/common/php73.conf')
-                wo_nginx = open('/etc/nginx/common/php73.conf',
-                                encoding='utf-8', mode='w')
-                self.app.render((data), 'php.mustache',
-                                out=wo_nginx)
-                wo_nginx.close()
+                WOTemplate.tmpl_render(self,
+                                       '{0}/php73.conf'
+                                       .format(ngxcom),
+                                       'php.mustache', data)
 
-                Log.debug(self, 'Writting the nginx configuration to '
-                          'file /etc/nginx/common/wpcommon-php73.conf')
-                wo_nginx = open('/etc/nginx/common/wpcommon-php73.conf',
-                                encoding='utf-8', mode='w')
-                self.app.render((data), 'wpcommon.mustache',
-                                out=wo_nginx)
-                wo_nginx.close()
+                WOTemplate.tmpl_render(self,
+                                       '{0}/redis-php73.conf'
+                                       .format(ngxcom),
+                                       'redis.mustache', data)
 
-                Log.debug(self, 'Writting the nginx configuration to '
-                          'file /etc/nginx/common/wpfc-php73.conf')
-                wo_nginx = open('/etc/nginx/common/wpfc-php73.conf',
-                                encoding='utf-8', mode='w')
-                self.app.render((data), 'wpfc.mustache',
-                                out=wo_nginx)
-                wo_nginx.close()
+                WOTemplate.tmpl_render(self,
+                                       '{0}/wpcommon-php73.conf'
+                                       .format(ngxcom),
+                                       'wpcommon.mustache', data)
 
-                Log.debug(self, 'Writting the nginx configuration to '
-                          'file /etc/nginx/common/wpsc-php73.conf')
-                wo_nginx = open('/etc/nginx/common/wpsc-php73.conf',
-                                encoding='utf-8', mode='w')
-                self.app.render((data), 'wpsc.mustache',
-                                out=wo_nginx)
-                wo_nginx.close()
+                WOTemplate.tmpl_render(self,
+                                       '{0}/wpfc-php73.conf'
+                                       .format(ngxcom),
+                                       'wpfc.mustache', data)
+                WOTemplate.tmpl_render(self,
+                                       '{0}/wpsc-php73.conf'
+                                       .format(ngxcom),
+                                       'wpsc.mustache', data)
 
-                Log.debug(self, 'Writting the nginx configuration to '
-                          'file /etc/nginx/common/wprocket-php73.conf')
-                wo_nginx = open('/etc/nginx/common/wprocket-php73.conf',
-                                encoding='utf-8', mode='w')
-                self.app.render((data), 'wprocket.mustache',
-                                out=wo_nginx)
-                wo_nginx.close()
+                WOTemplate.tmpl_render(self,
+                                       '{0}/wprocket-php73.conf'
+                                       .format(ngxcom),
+                                       'wprocket.mustache', data)
 
-                Log.debug(self, 'Writting the nginx configuration to '
-                          'file /etc/nginx/common/wpce-php73.conf')
-                wo_nginx = open('/etc/nginx/common/wpce-php73.conf',
-                                encoding='utf-8', mode='w')
-                self.app.render((data), 'wpce.mustache',
-                                out=wo_nginx)
-                wo_nginx.close()
-
-                Log.debug(self, 'Writting the nginx configuration to '
-                          'file /etc/nginx/common/redis-php73.conf')
-                wo_nginx = open('/etc/nginx/common/redis-php73.conf',
-                                encoding='utf-8', mode='w')
-                self.app.render((data), 'redis.mustache',
-                                out=wo_nginx)
-                wo_nginx.close()
+                WOTemplate.tmpl_render(self,
+                                       '{0}/wpce-php73.conf'
+                                       .format(ngxcom),
+                                       'wpce.mustache', data)
 
                 with open("/etc/nginx/common/release",
                           "w") as release_file:
@@ -337,32 +309,19 @@ def post_pref(self, apt_packages, packages):
 
             # Following files should not be overwrited
 
-            if not os.path.isfile('/etc/nginx/common/acl.conf'):
-                data = dict(webroot=ngxroot)
-                Log.debug(self, 'Writting the nginx configuration to '
-                          'file /etc/nginx/common/acl.conf')
-                wo_nginx = open('/etc/nginx/common/acl.conf',
-                                encoding='utf-8', mode='w')
-                self.app.render((data), 'acl.mustache',
-                                out=wo_nginx)
-                wo_nginx.close()
-            if not os.path.isfile('{0}/blockips.conf'.format(ngxcnf)):
-                Log.debug(self, 'Writting the nginx configuration to '
-                          'file {0}/blockips.conf'.format(ngxcnf))
-                wo_nginx = open('{0}/blockips.conf'.format(ngxcnf),
-                                encoding='utf-8', mode='w')
-                self.app.render(
-                    (data), 'blockips.mustache', out=wo_nginx)
-                wo_nginx.close()
-
-            if not os.path.isfile('{0}/fastcgi.conf'.format(ngxcnf)):
-                Log.debug(self, 'Writting the nginx configuration to '
-                          'file {0}/fastcgi.conf'.format(ngxcnf))
-                wo_nginx = open('{0}/fastcgi.conf'.format(ngxcnf),
-                                encoding='utf-8', mode='w')
-                self.app.render(
-                    (data), 'fastcgi.mustache', out=wo_nginx)
-                wo_nginx.close()
+            data = dict(webroot=ngxroot)
+            WOTemplate.tmpl_render(self,
+                                   '{0}/acl.conf'
+                                   .format(ngxcom),
+                                   'acl.mustache', data, overwrite=False)
+            WOTemplate.tmpl_render(self,
+                                   '{0}/blockips.conf'
+                                   .format(ngxcnf),
+                                   'blockips.mustache', data, overwrite=False)
+            WOTemplate.tmpl_render(self,
+                                   '{0}/fastcgi.conf'
+                                   .format(ngxcnf),
+                                   'fastcgi.mustache', data, overwrite=False)
 
             # add redis cache format if not already done
             if (os.path.isfile("/etc/nginx/nginx.conf") and