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This is probably my longest standing action item in TERENA : implement  implement a federated version of Confluence.

Below is the recipe for getting this to work . Ingredients:with Ubuntu 12.04

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, Confluence 5.1

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, Apache

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, and modmellon.

I choose modmellon because it seemed like a cleaner solution than mod_shib, requiring no additional daemons and much simpler configuration.

Apache web server

Prerequisites

Before you start, make sure you have these bits:

• A SAML Identity Provider (IdP).
• An account on that IdP.
• An attribute that can be used as username in Confluence (for example eduPersonPrincipalName). Attributes for full name and e-mail are optional but recommended.
• The user name of the to-be administrator account. So, if you choose eduPersonPrincipalName as the attribute for username, you need to know your own value (for instance 'dvisser@surfnet.nl'.

Modmellon

Modmellon is an apache module. To get this working I recompiled the For modmellon to work, I recompiled Debian source packages from the University of Tilburg for Ubuntu 12.04 and made them available in our own APT repository.

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apt-get install apache2-mpm-worker libapache2-mod-auth-mellon 

Create a directory /etc/apache/mellon, and store the Identity Provider metadata in XML format to a file called idp.xml.

openssl req -new -newkey rsa:2048 -days 3650 -nodes -x509 -keyout core.key -out core.crt

Create a 

• sp.crt - X509 certificate
• sp.key 

PostgreSQL

apt-get install postgresql

Create a dedicated database user, and a database:

sudo su - postgres
createuser -S -d -r -P -E confuser
createdb -O confuser confluence

Confluence 

Install OpenJDK:

apt-get --no-install-recommends install openjdk-7-jdk

Download the source http://www.atlassian.com/software/confluence/downloads/binary/atlassian-confluence-5.1.tar.gz and unpack it to /opt/confluence.

Edit /opt/confluence/conflue

Once installed, use this upstart script to have start on boot:

# Upstart script for confluence
description     "Atlassian Confluence"
start on runlevel [2345]
stop on runlevel [!2345]
kill timeout 30
env RUN_AS_USER=root
env BASEDIR=/opt/confluence
script
    LOGFILE=$BASEDIR/logs/catalina.out
    exec su - $RUN_AS_USER -c "$BASEDIR/bin/catalina.sh run" >> $LOGFILE 2>&1
end script

Once this is there, you can simply issue "start confluence", "stop confluence", "restart confluence".