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 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * See the License for the specific language governing permissions and
 * limitations under the License.

Welcome to Apache Karaf Cellar
Apache Karaf Cellar is an Apache Karaf subproject. It provides a clustering solution for Apache
Karaf powered by Hazelcast.

Cellar allows you to manage a cluster of several Karaf instances, provinding synchronization between instances.

Here is a short list of features:
    * Discovery: when you install Cellar into a Karaf instance, it automatically tries to discover other Cellar
      instances and join the cluster. There is no configuration required to join the cluster, the discovery is made
      behind the scene. You can use multicast or unicast for discovery.
    * Cluster group: a Karaf node could be part of one or more cluster group. In Cellar, you can define cluster group
      depending of your requirements. The resources will be sync between nodes of the same group.
    * Distributed Configuration Admin: Cellar distributes the configuration data. The distribution is event driven and
      filtered by group. You can tune the configuration replication using blacklist/whitelist on the configuration
      ID (PID).
    * Distributed Features Service: Cellar distributes the features/repositories info. It's also event-driven.
    * Provisioning: Cellar provides shell commands for basic provisioning. It can also use an OBR backend or another
      provisioning tool such as Apache ACE.

Getting Started
For an Apache Karaf Cellar source distribution, please read
BUILDING for instructions on building Apache Karaf.

To install Apache Karaf Cellar, first you have to register the Cellar features descriptor:

karaf@root()> feature:repo-add mvn:org.apache.karaf.cellar/apache-karaf-cellar/4.0.0/xml/features

Now, you can install the Cellar feature simply by typing:

karaf@root()> feature:install cellar

The PDF manual is the right place to find any information about Karaf Cellar.

Alternatively, you can also find out how to get started here:

If you need more help try talking to us on our mailing lists

If you find any issues with Apache Karaf, please submit reports
with JIRA here:

We welcome contributions, and encourage you to get involved in the
Karaf community. If you'd like to learn more about how you can
contribute, please see:

Many thanks for using Apache Karaf Cellar.

The Karaf Team