Configure Apache as a front end to Tomcat

Add to
${TOMCAT_HOME}/conf/server.xml
after
<Connector port="8009" enableLookups="false" redirectPort="8443" 
protocol="AJP/1.3"/>

<Host name="www.example.com" appBase="webapps" unpackWARs="true" 
autoDeploy="false">
   <Context path="" docBase="webapps" reloadable="false" override="true"/>
</Host>

In
${APACHE_HOME}/conf/httpd.conf
At the appropriate places in the file

Add listen directives
Listen 0.0.0.0:80
Listen 0.0.0.0:443

Ensure that the correct user owns Apache
User your_user
Group your_user_group

Uncomment
LoadModule proxy_module modules/mod_proxy.so
LoadModule proxy_ajp_module modules/mod_proxy_ajp.so
LoadModule proxy_http_module modules/mod_proxy_http.so
LoadModule rewrite_module modules/mod_rewrite.so

Set the appropriate server email
ServerAdmin admin@example.com

Set the server name directive
ServerName www.example.com

Set the virtual hosts
<VirtualHost *:443>
        ProxyTimeout 3600
        SetOutputFilter DEFLATE
        ServerName www.example.com:443
        RewriteEngine On
        SSLEngine On
        SSLCertificateFile conf/server.crt
        SSLCertificateKeyFile conf/server.key
        RewriteLog "/opt/coolstack/apache2/logs/rewrite.log"
        RewriteLogLevel 0
        RewriteRule ^/css/(.*)$ /internal/css/$1 [L]
        RewriteRule ^/orbeon$ ajp://localhost:8009/orbeon/ [P,R,L]
        RewriteRule ^/orbeon/(.*)$ ajp://localhost:8009/orbeon/$1 [P,R,L]
</VirtualHost>

<VirtualHost *:80>
        ProxyTimeout 3600
        SetOutputFilter DEFLATE
        ServerName www.example.com:80
        RewriteEngine On
        RewriteLog "/opt/coolstack/apache2/logs/rewrite.log"
        RewriteLogLevel 0
        RewriteCond %{HTTPS} off
        RewriteRule (.*) https://%{HTTP_HOST}%{REQUEST_URI}
</VirtualHost>