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Chapter 15. Environment Variables
This chapter provides information on API resources that allow a client to add and manage user defined application environment variables. The environment variables can be set when an application is created, when a cartridge is added to an application, or they can be added to an existing application. User defined environment variables are persistent and replicated through all application gears, including new gears added in scaling events.
The following table describes each parameter associated with OpenShift environment variables.
| Name | Description |
|---|---|
name | Name of the environment variable |
value | Value of the environment variable |
15.1. Add Environment Variable
Description
Add an environment variable to the specified application.
Method and URL Structure
Method URL Structure POST /broker/rest/application/:id/environment-variables
Request Parameters
Name Description Required Default name Name of environment variable No value Value of environment variable No
Request
{
"name": "MY_ENV_VAR",
"value": "myvalue"
}
cURL Command Example
$ curl -X POST https://openshift.redhat.com/broker/rest/application/534253991015616165707776/environment-variables --user user@example.com:password --data-urlencode name=MY_ENV_VAR --data-urlencode value=myvalue
JSON Response
The API returns the environment variables resource with related resource links which have been left out for brevity. See Chapter 15, Environment Variables for more information on all parameters for environment variables.
{
"api_version": 1.6,
"data": {
"name": "MY_ENV_VAR",
"value": "myvalue"
},
"messages": [
{
"exit_code": 0,
"field": null,
"severity": "info",
"text": "Added environment variable 'MY_ENV_VAR' to application myapp"
}
],
"status": "created",
"supported_api_versions": [
1.0,
1.1,
1.2,
1.3,
1.4,
1.5,
1.6
],
"type": "environment-variable",
"version": "1.6"
}
Environment variables can also be added when an application is created, or when a cartridge is added to an application.
See Section 11.2, “Create an Application” for more information on adding environment variables when creating an application.
See Section 13.2.1, “Add Embedded Cartridge” for more information on adding environment variables when adding a cartridge to an application.
