Combine two virtual hosts in one domain with a subdirectory - apache

Question

I have a website example.com served by Apache, and example2.com redirected to port 3001 (using NodeJS). It works with this config:
<VirtualHost *:80>
ServerName www.example.com
DocumentRoot /home/www/example
<Directory />
Options FollowSymLinks
AllowOverride All
Order deny,allow
Allow from all
Require all granted
</Directory>
</VirtualHost>
<VirtualHost *:80>
ServerName www.example2.com
RewriteEngine On
RewriteCond %{REQUEST_URI} ^/socket.io [NC]
RewriteCond %{QUERY_STRING} transport=websocket [NC]
RewriteRule /(.*) ws://localhost:3001/$1 [P,L]
ProxyPass / http://localhost:3001/
ProxyPassReverse / http://localhost:3001/
</VirtualHost>
Now I would like to have this (because I won't renew the domain example2.com):
example.com => served by Apache => /home/www/example
example.com/website2 => redirected to the NodeJS website using 3001 (the one previously served on example2.com)
Question: I'm about to use the following code, but is it a correct use of Directory?
<VirtualHost *:80>
ServerName www.example.com
DocumentRoot /home/www/example
<Directory />
Options FollowSymLinks
AllowOverride All
Order deny,allow
Allow from all
Require all granted
</Directory>
<Directory /website2/>
RewriteEngine On
RewriteCond %{REQUEST_URI} ^/socket.io [NC]
RewriteCond %{QUERY_STRING} transport=websocket [NC]
RewriteRule /(.*) ws://localhost:3001/$1 [P,L]
ProxyPass / http://localhost:3001/
ProxyPassReverse / http://localhost:3001/
</Directory>
</VirtualHost>

Answer 1

I think you should use the <Location> directives for section based URL for stable operation.
Each section directives have priorities by order and section based. (section applied order)
<Directory> is based physical file system and low priority if the same section layered by multiple directives, such as <Location>, <Directory>, <File> and so on.
For example,
<VirtualHost *:80>
ServerName www.example.com
DocumentRoot /home/www/example
<Directory /home/www/example>
Options FollowSymLinks
AllowOverride All
#Order deny,allow
#Allow from all
# above access control conf mean same with below conf
Require all granted
</Directory>
# Location is not necessary to mod_rewrite directives.
# rewrite conf can be coontrol the conditions with RewriteCond
RewriteEngine On
RewriteCond %{REQUEST_URI} ^/website2/socket.io [NC]
RewriteCond %{QUERY_STRING} transport=websocket [NC]
RewriteRule ^/website2/(.*) ws://localhost:3001/$1 [P,L]
# ProxyPass is now allowed into Location as following patterns,
# but 'ProxyPass http://localhost:3001/' is available into the Location directive but limited in Location URL pattern.
ProxyPass / http://localhost:3001/
ProxyPassReverse / http://localhost:3001/
</VirtualHost>