<VirtualHost *:80>
 ServerName dashboard.example.com
 Redirect permanent / https://dashboard.example.com/
</VirtualHost>
NameVirtualHost *:443
<VirtualHost _default_:443>
 SSLEngine On
 SSLCertificateFile /etc/ssl/CAcert.cert.pem
 SSLCertificateKeyFile /etc/ssl/private/key.pem
 ServerAdmin webmaster@localhost
 ServerName dashboard.example.com
 ErrorLog "/var/log/apache2/dashboard-error_log"
 CustomLog "/var/log/apache2/dashboard-access_log" common
 <Proxy *>
   Order allow,deny
   Allow from all
 </Proxy>
 ProxyPass / http://mylocalserver.example.com:3030/
 ProxyPassReverse / http://mylocalserver.example.com:3030/
</VirtualHost>

Ensure the proxy modules are enabled:

$ sudo a2enmod proxy
Enabling module proxy.
To activate the new configuration, you need to run:
service apache2 restart
$ sudo a2enmod proxy_http
Enabling module proxy_http.
To activate the new configuration, you need to run:
service apache2 restart
$

Enable the new dashboard site:

$ sudo a2ensite dashboard

Check your configuration is working before restarting apache:

$ sudo apachectl configtest
Syntax OK
$ sudo service apache2 restart
[ ok ] Restarting web server: apache2 ... waiting .
$

Don’t forget to delegate your dashboard.example.com hostname to resolve to your apache server’s IP address.
Now visit http://dashboard.example.com/name_of_your_dashboard. Your browser should automatically get redirected to https://dashboard.example.com/name_of_your_dashboard and you should see your dashboard.

# Actual
old.host.name:80 199.7.156.141 - - [16/Sep/2012:17:25:51 +1000] "GET /wp-content/themes/grip/style.css HTTP/1.1" 200 7108 "http://correct.host.name/" "Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; WOW64; Trident/4.0; BTRS126493; EasyBits GO v1.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; eSobiSubscriber 2.0.4.16; InfoPath.2)"
old.host.name:80 199.7.156.141 - - [16/Sep/2012:17:25:51 +1000] "GET /wp-content/themes/grip/stylesheet/nivo-slider/nivo-slider.css HTTP/1.1" 200 968 "http://correct.host.name/" "Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; WOW64; Trident/4.0; BTRS126493; EasyBits GO v1.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; eSobiSubscriber 2.0.4.16; InfoPath.2)"
# Required for importing to AWStats
correct.host.name 80 199.7.156.141 - - [16/Sep/2012:17:25:51 +1000] "GET /wp-content/themes/grip/style.css HTTP/1.1" 200 7108 "http://correct.host.name/" "Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; WOW64; Trident/4.0; BTRS126493; EasyBits GO v1.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; eSobiSubscriber 2.0.4.16; InfoPath.2)"
correct.host.name 80 199.7.156.141 - - [16/Sep/2012:17:25:51 +1000] "GET /wp-content/themes/grip/stylesheet/nivo-slider/nivo-slider.css HTTP/1.1" 200 968 "http://correct.host.name/" "Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; WOW64; Trident/4.0; BTRS126493; EasyBits GO v1.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; eSobiSubscriber 2.0.4.16; InfoPath.2)"

catlogs.sh finds relevant lines in given log file and reformats them to be suitable for importing into AWStats and outputs to stdout:

#!/bin/bash
mycat() {
    local f;
    for f; do
        case $f in
            *.gz) gzip -cd "$f" ;;
            *) cat "$f" ;;
        esac;
    done;
}
mygrep() {
    #get all the lines from log file which have accesses to the correct.host.name
    mycat $1 | grep 'http://correct.host.name' | \
        sed -e 's/old.host.name:80/correct.host.name 80/ ; s/correct.host.name:80/correct.host.name 80/' # replace incorrect hostnames
}
mygrep $1

Then I needed to loop through all the access.log files in the apache log directory in historical order. To do that I wrote a simple for loop on the command line.

for i in $(ls /var/log/apache2/access.log* | sort -r -n -k 3 -t '.' ) ; do sudo -u www-data /usr/lib/cgi-bin/awstats.pl -showcorrupted -showsteps -LogFile="bash /home/jason/catlogs.sh $i |" -config=/etc/awstats/awstats.correct.host.name.conf ; done;

A nice thing with AWStats is you can pass in a command that outputs to stdout as the log file -LogFile="bash /home/jason/catlogs.sh $i |". I used sort to get the files into numerical order. sort’s -k and -t options let you sort by a “KEY”. The logs need to go from oldest at the top to newest at the bottom, so you have to process the files in reverse number order.
Lastly, to ensure AWStats can read the apache access logs in future, I changed the apache vhost_combined format to:

LogFormat "%V %p %h %l %u %t \"%r\" %>s %O \"%{Referer}i\" \"%{User-Agent}i\"" vhost_combined

and I changed awstats log format to:

LogFormat = "%virtualname %other %host %other %logname %time1 %methodurl %code %bytesd %refererquot %uaquot"

/etc/apache2/sites-enabled$ ls -al
total 8
drwxr-xr-x 2 root root 4096 Jul 25 13:18 .
drwxr-xr-x 7 root root 4096 Jul 24 12:28 ..
lrwxrwxrwx 1 root root 40 Jul 24 12:06 000-wordpress-network-ssl -> ../sites-available/wordpress-network-ssl
lrwxrwxrwx 1 root root 36 Jul 24 12:02 010-wordpress-network -> ../sites-available/wordpress-network

Order of the files is very important. wordpress-network contents below:

<VirtualHost *:80>
UseCanonicalName Off
ServerAlias *.examplehost.com examplehost.com
ServerName examplehost.com
DocumentRoot /var/www
Options All
ServerAdmin myname@examplehost.com
# Store uploads of www.domain.com in /srv/www/wp-uploads/$0
RewriteEngine On
RewriteRule ^/wp-uploads/(.*)$ /var/www/wp-uploads/%{HTTP_HOST}/$1
# try and make server-status return server status
#RewriteRule ^/server-status - [L]
RewriteCond %{REQUEST_URI} !=/server-status
<Location /server-status>
SetHandler server-status
Order Deny,Allow
# Deny from all
# Allow from localhost
Allow from all
</Location>
<Directory />
Options FollowSymLinks
AllowOverride All
</Directory>
CustomLog /var/log/apache2/access.log vhost_combined
ErrorLog /var/log/apache2/error.log
# this is needed when activating multisite, WP needs to to a
# fopen("http://randomname.domain.com") to verify
# that apache is correctly configured
php_admin_flag allow_url_fopen on
</VirtualHost>