Apache httpd configuration

hosts.conf

<VirtualHost *:80>
    ServerName example.termweb.eu
    DocumentRoot "/var/www/termweb4"
    RewriteEngine On

    <IfDefine Maintenance>
      ErrorDocument 503 /maintenance/index.html
      RewriteEngine on
      RewriteCond %{REQUEST_URI} !=/maintenance/index.html
      RewriteCond %{REQUEST_URI} !^/INTV_bg_min\..+\.jpg$
      RewriteRule ^ - [R=503,L]
    </IfDefine>

    <IfDefine !Maintenance>
      <Directory /var/www/termweb4/>
          Options Indexes FollowSymLinks MultiViews
          AllowOverride None
          AddOutputFilterByType DEFLATE text/html text/plain text/xml text/css text/javascript application/javascript application/json
          Order allow,deny
          allow from all

          RewriteCond %{REQUEST_FILENAME} !-f
          RewriteRule ^.+$ index.html [L]
      </Directory>

      ProxyPreserveHost   on
      ProxyPass           /api http://localhost:8080/api
      ProxyPassReverse    /api http://localhost:8080/api
      ProxyPass           /js http://localhost:8080/js
      ProxyPassReverse    /js http://localhost:8080/js
      ProxyPass           /help http://localhost:8080/help
      ProxyPassReverse    /help http://localhost:8080/help
      ProxyPass           /custom http://localhost:8080/custom
      ProxyPassReverse    /custom http://localhost:8080/custom
      ProxyPass           /layout http://localhost:8080/layout
      ProxyPassReverse    /layout http://localhost:8080/layout
      ProxyPass           /tw4 http://localhost:8080/tw4
      ProxyPassReverse    /tw4 http://localhost:8080/tw4
      ProxyPass           /app http://localhost:8080/app
      ProxyPassReverse    /app http://localhost:8080/app
      ProxyPass           /services http://localhost:8080/services
      ProxyPassReverse    /services http://localhost:8080/services
      ProxyPassReverse    /login http://localhost:8080/login
      ProxyPass           /login-openid http://localhost:8080/login-openid
      ProxyPassReverse    /login-openid http://localhost:8080/login-openid
      ProxyPass           /login-oidc http://localhost:8080/login-oidc
      ProxyPassReverse    /login-oidc http://localhost:8080/login-oidc
      ProxyPass           /login-saml http://localhost:8080/login-saml
      ProxyPassReverse    /login-saml http://localhost:8080/login-saml
      ProxyTimeout 1200
      AddOutputFilterByType DEFLATE application/json
    </IfDefine>

    ErrorLog logs/example.termweb.eu-error_log
    CustomLog logs/example.termweb.eu-access_log common
</VirtualHost>