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Apache Stratos supports three type of cartridges: Data Data,   Application, and and Framework. Administrators need to customize the provider  field, which is in is in the cartridge definition, to deploy a cartridge of a specific type. 

"provider":"<CARTRIDGE-TYPE>"

Cartridge typeConfigurationExamples
Data"data"MySQL cartridge
Application"app"Wordpress cartridge
FrameworkAny term other than "data" and "app"PHP cartridge and Tomcat cartridge

For example, when you deploy a cartridge with the following configuration, it will be considered as a framework cartridge.
"provider":  "apache"  

Customization based on Load Balancer

A Load Balancer (LB) distributes the workload among multiple computing resources. While, it also scales up and down based on the load. Administrators can deploy cartridges using three approaches with regard to LB: Using using the default LB, using the service LB or not using a LB. Administrators  Administrators need to customize the  provider field, which is in the Load Balancer cartridge configurations when deploying a Load Balancer Cartridge. 

"provider": "lb"

If the administrator is using a LB, the following configurations need to be added in the cartridge definition:

Code Block
"loadBalancer": {
       "type": "lb-test",
       "property": {
           "name": "<LOAD-BALANCER-TYPE>",
           "value": "true"
       }
     }
LB TypeConfigurationDefinition
Default LB
"default.load.balancer"
Apache Stratos will automatically create a new LB instance for each network partition.
Service LB
"service.aware.load.balancer"
Apache Stratos will automatically create a new LB instance for each service spawned in a network partition.

Customization based on persistence storage

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  1. Configure persistence volume support in the Cartridge definition. For more information on the configurations required, see Sample Cartridge Definition.

  2. Enable persistence volume support while subscribing from the UI or CLI. For For more information on the configurations required when subscribing using the CLI, see see subscribe-cartridge.

    Info

    Currently persistence volume support is fully tested only for AWS EC2.

The following configurations related to persistence storage need to be added in the Sample Cartridge Definition.

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Info

The value entered for the size of the persistence volume during the subscription will override the value defined in the Cartridge definition JSON file. If the user has not provided the size of the volume during the subscription, then the values defined in the Cartridge definition JSON file will be used, specially when multiple persistence volumes are used.

For more information, see Persistence Volume Mapping on mapping a persistence volume to a cartridge.

Customization based on tenancy

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  1. Create and deploy a partition.
  2. Create and deploy an auto-scaling policy.
  3. Create and deploy a deployment policy.
  4. Optionally, create and deploy a Load Balancer (LB). As a cartridge can be created without a Load Balancer, creating a LB is not mandatory.
  5. Set the multiTenant  field to false in the cartridge configurations:
    "multiTenant": "false",
  6. Create and deploy a cartridge.

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  1. Create and deploy a partition.
  2. Create and deploy an auto-scaling policy.
  3. Create and deploy a deployment policy.
  4. Optionally, create and deploy a Load Balancer (LB). As a cartridge can be created without a Load Balancer, creating a LB is not mandatory.
  5. Set the multiTenant   field to true in the cartridge configurations:
    "multiTenant": "true",
  6. Create and deploy a cartridge.