Any standalone broker can be joined to an existing fabric using the fabric:join. You need to supply the URL of one of the Fuse Servers in the fabric and the standalone broker is added to the fabric. The broker can join the fabric as either a managed container or a non-managed container:
A managed container is a full member of the fabric and is managed by a Fabric Agent. The agent configures the container based on information provided by the fabric's ensemble. The ensemble knows which profiles are associated with the container and the agent determines what to install based on the contents of the profiles.
A non-managed container is not managed by a Fabric Agent. It's configuration remains intact after it joins the fabric and is controlled as if the broker were a standalone broker. Joining the fabric in this manner registers the broker with the fabric's ensemble and allows clients to locate the broker using the fabric's discovery mechanism.
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