add backup and cleanup before upgrade

wo/cli/plugins/stack.py

@@ -214,10 +214,7 @@ class WOStackController(CementBaseController):
                     wo_nginx.close()
 
                     data = dict(php="9000", debug="9001",
-                                    php7="9070", debug7="9170",
-                                    php7conf=True
-                                    if WOAptGet.is_installed(self, 'php7.0-fpm')
-                                    else False)
+                                    php7="9070", debug7="9170")
                     Log.debug(self, 'Writting the nginx configuration to '
                               'file /etc/nginx/conf.d/upstream.conf')
                     wo_nginx = open('/etc/nginx/conf.d/upstream.conf',

wo/cli/templates/upstream.mustache

@@ -10,7 +10,7 @@ upstream debug {
 server 127.0.0.1:{{debug}};
 }
 
-{{#php7conf}}
+
 #-------------------------------
 # PHP 7.0
 #-------------------------------
@@ -22,7 +22,7 @@ upstream debug7 {
 # Debug Pool
 server 127.0.0.1:{{debug7}};
 }
-{{/php7conf}}
+
 
 #-------------------------------
 # PHP 7.2
@@ -31,10 +31,10 @@ server 127.0.0.1:{{debug7}};
 # PHP 7.2 upstream with load-balancing on two unix sockets
 upstream php72 {
     least_conn;
-    
+
     server unix:/var/run/php/php72-fpm.sock;
     server unix:/var/run/php/php72-two-fpm.sock;
-    
+
     keepalive 5;
 }
 
@@ -51,10 +51,10 @@ server 127.0.0.1:9172;
 # PHP 7.3 upstream with load-balancing on two unix sockets
 upstream php73 {
     least_conn;
-    
+
     server unix:/var/run/php/php73-fpm.sock;
     server unix:/var/run/php/php73-two-fpm.sock;
-    
+
     keepalive 5;
 }