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13.2. Embedded Cartridges

Embedded cartridges are added to an OpenShift application to extend functionality. For example, a MySQL cartridge provides database support for an application.

13.2.1. Add Embedded Cartridge
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Description

Add an embedded cartridge to an application.

Method and URL Structure

Expand
Method Resource URL
POST /broker/rest/application/:id/cartridges

Request Parameters

Expand
Name Description Required Default
name Name of cartridge; note that valid options may be different from those shown here Yes
colocate_with Component to colocate with No  
scales_from Minimum number of gears to run component No
scales_to Maximum number of gears to run component No
additional_storage Additional GB of storage request on gears running this component No
gear_size Cartridge gear size No  
url URL to a downloadable cartridge No
environment_variables Add or update application environment variables No

See Section A.7, “Cartridges” for more information about the valid options applicable to these request parameters.
Request

{
  "name": "mysql-5.5",
  "colocate_with": "ruby-2.0",
  "gear_size": "small"
}
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cURL Command Example

$ curl -X POST https://openshift.redhat.com/broker/rest/application/534253991015616165707776/cartridges --user "user:Password" --data-urlencode name=mysql-5.5 --data-urlencode colocate_with=ruby-2.0 --data-urlencode gear_size=small
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JSON Response

The API returns the embedded cartridge resource. Unnecessary information and related resource links returned by the API have been removed for brevity. See Chapter 13, Cartridges for more information on all cartridge parameters. 

{
  "api_version": 1.6,
  "data": {
    "additional_gear_storage": 0,
    "base_gear_storage": 1,
    "collocated_with": [
      "ruby-2.0",
      "haproxy-1.4"
    ],
    "current_scale": 1,
    "description": "MySQL is a multi-user, multi-threaded SQL database server.",
    "display_name": "MySQL Database 5.5",
    "gear_profile": "small",
    "help_topics": {
    },
    "license": "GPL",
    "license_url": "",
    "name": "mysql-5.5",
    "properties": [
      {
        "name": "username",
        "type": "cart_data",
        "description": "Root user on mysql database",
        "value": "adminthGnHLU"
      },
      {
        "name": "password",
        "type": "cart_data",
        "description": "Password for root user on mysql database",
        "value": "dPFjWLrUjfxC"
      },
      {
        "name": "database_name",
        "type": "cart_data",
        "description": "MySQL DB name",
        "value": "myapp"
      },
      {
        "name": "connection_url",
        "type": "cart_data",
        "description": "MySQL DB connection URL",
        "value": "mysql://$OPENSHIFT_MYSQL_DB_HOST:$OPENSHIFT_MYSQL_DB_PORT/"
      }
    ],
    "scales_from": 1,
    "scales_to": 1,
    "scales_with": "haproxy-1.4",
    "status_messages": null,
    "supported_scales_from": 1,
    "supported_scales_to": 1,
    "tags": [
      "service",
      "database",
      "embedded"
    ],
    "type": "embedded",
    "url": null,
    "usage_rates": [

    ],
    "version": "5.5",
    "website": "http://www.mysql.com"
  },
  "messages": [
    {
      "exit_code": 0,
      "field": null,
      "severity": "info",
      "text": "Added mysql-5.5 to application myapp"
    },
    {
      "exit_code": 0,
      "field": null,
      "severity": "debug",
      "text": "\n\nmysql-5.5: Connection URL: mysql://$OPENSHIFT_MYSQL_DB_HOST:$OPENSHIFT_MYSQL_DB_PORT\n"
    },
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