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From j...@apache.org
Subject svn commit: r1590946 - /ace/site/trunk/content/user-doc/user-guide.mdtext
Date Tue, 29 Apr 2014 10:52:47 GMT
Author: jawi
Date: Tue Apr 29 10:52:47 2014
New Revision: 1590946

URL: http://svn.apache.org/r1590946
Log:
Added section on how to configure the server.

Modified:
    ace/site/trunk/content/user-doc/user-guide.mdtext

Modified: ace/site/trunk/content/user-doc/user-guide.mdtext
URL: http://svn.apache.org/viewvc/ace/site/trunk/content/user-doc/user-guide.mdtext?rev=1590946&r1=1590945&r2=1590946&view=diff
==============================================================================
--- ace/site/trunk/content/user-doc/user-guide.mdtext (original)
+++ ace/site/trunk/content/user-doc/user-guide.mdtext Tue Apr 29 10:52:47 2014
@@ -98,6 +98,14 @@ There is a subtle, but very important, d
 
 Creating dynamic associations is currently only supported for bundle artifacts. For other
types of artifacts, such as configuration files, only static associations can be created[^2].

 
+### Configuring the server
+
+The ACE server is completely modular and therefore can be configured in many different ways.
As such, the configuration of the server is done by using the Configuration Admin service
which is provisioned by means of configuration files that reside in the <tt>conf</tt>
directory.  The filename of each configuration file equals the service PID of the managed
service and **must** end with <tt>.cfg</tt>. Directories are considered as managed
service factories of which the directory name equals the service PID.
+
+Configuration files itself are simple Java property files containing key-value pairs separated
by newlines. Configuration values are allowed to contain "placeholders" or "variables". Everything
between <tt>${</tt> and <tt>}</tt> is considered a variable and replaced
by the value represented by that variable. For example, consider a variable <tt>var</tt>
that is defined as "<tt>value</tt>", then <tt>${var}</tt> will be
replaced with "<tt>value</tt>". Variables can refer to another value in the *same*
configuration file, or to a property that is defined in the OSGi-framework or globally in
your system as environment setting.
+
+The configuration files are watched continuously, allowing you to adjust the configuration
of the ACE server without having to restart it.
+
 ## Running a target
 
 As mentioned, a target represents a client on which software can be deployed by ACE. Actually,
a target consists of an OSGi runtime that runs *at least* the ACE management agent. This management
agent periodically checks with the ACE server whether or not new software is available. In
case new software is available for a target, it can automatically download and install it.
@@ -107,7 +115,7 @@ ACE provides a runnable eclipse project,
 1. it uploads the audit log of the target to the ACE server. The audit log contains all changes
in bundle and framework state, such as the starting and stopping of the framework and (de)installation
of bundles;
 2. it check whether or not software updates are available. If so, it will download it and
install this update automatically.
 
-Since ACE 2.0.1, the binary distribution also contains a single-jar version of a target,
called <tt>target.jar</tt>, that can be used to bootstrap the ACE management agent
on a target host as shown in the following example (the backslash denote line continuations):
+Since version 1.0, the binary distribution of ACE also contains a single-jar version of a
target, called <tt>target.jar</tt>, that includes all necessary software and bundles
to start the ACE management agent. It can be used to quickly bootstrap an ACE management agent
on a target host as shown in the following example (the backslash denote line continuations):
 
     :::sh
     $ java \
@@ -118,6 +126,8 @@ Since ACE 2.0.1, the binary distribution
     Welcome to Apache Felix Gogo
     ...
 
+### Target configuration
+
 The agent can be configured by supplying its options as commandline parameters (e.g. <tt>-Dname=value</tt>).
A list of most used options are[^7]:
 
 <tt>agent.identification.agentid</tt>



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