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9.2. Fabric Child Containers

Creating child containers
링크 복사

You create a new child container using the fabric:container-create-child console command, which has the following syntax: 
karaf@root> fabric:container-create-child parent child [number]
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Where parent is the name of an existing container in the fabric and child is the name of the new child container. If you create multiple child containers (by specifying the optional number argument), the new child instances are named child1, child2, and so on.
For example, assuming the container, root, already belongs to your fabric, you can create two new child containers as follows: 
karaf@root> fabric:container-create-child root child 2
The following containers have been created successfully:
	child1
	child2
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Listing all container instances
링크 복사

To list all of the containers in the current fabric (including child instances), use the fabric:container-list console command. For example: 
JBossFuse:karaf@root> fabric:container-list
[id]                           [version] [alive] [profiles]                     [provision status]
root                           1.0       true    fabric, fabric-ensemble-0000-1 
  child1                       1.0       true    default                        success
  child2                       1.0       true    default                        success
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Assigning a profile to a child container
링크 복사

By default, a child is assigned the default profile when it is created. To assign a new profile (or profiles) to a child container after it has been created, use the fabric:container-change-profile console command.
Note
You can assign a profile other than default to a newly created container by using the fabric:container-create-child command's --profile argument.
For example, to assign the example-camel profile to the child1 container, enter the following console command: 
JBossFuse:karaf@root> fabric:container-change-profile child1 example-camel
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The command removes the profiles currently assigned to child1 and replaces them with the specified list of profiles (where in this case, there is just one profile in the list, example-camel).

Connecting to a child container
링크 복사

To connect to a child container, use the fabric:container-connect console command. For example, to connect to child1, enter the following console command: 
JBossFuse:karaf@root>fabric:container-connect -u admin -p admin child1
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You should see output like the following in your console window: 
Connecting to host YourHost on port 8102
Connected
      _ ____                  ______
     | |  _ \                |  ____|             
     | | |_) | ___  ___ ___  | |__ _   _ ___  ___
 _   | |  _ < / _ \/ __/ __| |  __| | | / __|/ _ \
| |__| | |_) | (_) \__ \__ \ | |  | |_| \__ \  __/
 \____/|____/ \___/|___/___/ |_|   \__,_|___/\___|

  JBoss Fuse (6.0.0.redhat-xxx)
  http://www.redhat.com/products/jbossenterprisemiddleware/fuse/

Hit '<tab>' for a list of available commands
and '[cmd] --help' for help on a specific command.
Hit '<ctrl-d>' or 'osgi:shutdown' to shutdown JBoss Fuse.

JBossFuse:admin@child1>
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To terminate the session, enter Ctrl-D.

Starting a child container
링크 복사

To start a child container that was previously stopped, use the fabric:container-start command, providing the child container's name as the command argument—for example, to restart child1: 
JBossFuse:karaf@root>fabric:container-start child1
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This command starts up the child in a separate JVM.

Stopping a child container
링크 복사

To stop a child instance, use the fabric:container-stop command, providing the child container's name as the command argument—for example, to stop child1: 
JBossFuse:karaf@root>fabric:container-stop child1
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This command kills the JVM process that hosts the child1 container.

Destroying a child container
링크 복사

To completely destroy a child container use the fabric:container-delete command. For example, to destroy the child1 container instance, enter the following console command: 
JBossFuse:karaf@root> fabric:container-delete child1
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Destroying a child container does the following:
  • stops the child's JVM process
  • physically removes all files related to the child container
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