Hello Mickael, Sorry for not getting back to you sooner.
On Jul 24, 2012, at 13:50 , Mickael Marrache wrote: > Company A wants to sell an application server to companies B and C. The > application server consists of multiple bundles. For each company, many > application servers may be installed on different nodes. So, on each node, > I think there would be one Apache Felix instance and the bundles that > compose the application server installed on it. Yes. ACE can manage an OSGi framework if you install the "management agent" bundle in this framework (this is called a "target" in ACE). You can either do that with a startup script, or we have a version of Felix that "embeds" this management agent. > But, for each application server installation, some bundles are provided > following a license. For example, company B may have bought a license to > use a certain bundle of the application server, that provides a particular > service. Company C may have bought a more expensive license, therefore > using the same bundle as B plus another bundle that provides another > service. Using the features and distributions of ACE, you can group certain bundles and configuration files together to form such licenses. You can then associate a distribution (or more of them) with a target (= an OSGi framework with management agent). So for this example, you might have one "base" distribution with the plain application server, and some "extra" distributions with the licensed add-ons. > So, I need a way to differentiate the nodes (i.e. a node belongs to a > particular customer). I also need a way to control which bundles are > installed/used on a certain node following certain license information. Targets (nodes) can be tagged with custom tags. It would therefore be easy to add a "customer=Foo" to a target to associate it with a customer. You can then create a custom "association" between a distribution and "any target that has the customer=Foo tag". > Is it possible using Apache Ace? If yes, is it enough mature to be used in > production? We are using it in production in the Amazon Cloud. We are using trunk now, and we are working hard on getting a "1.0" release done. There definitely are still some rough edges though. Greetings, Marcel
