{
  "$schema": "http://json-schema.org/schema#", 
  "required": [
    "name"
  ], 
  "type": "object", 
  "description": "EnvVar represents an environment variable present in a Container.", 
  "properties": {
    "valueFrom": {
      "description": "Source for the environment variable's value. Cannot be used if value is not empty.", 
      "$ref": "_definitions.json#/definitions/v1.EnvVarSource"
    }, 
    "name": {
      "type": [
        "string", 
        "null"
      ], 
      "description": "Name of the environment variable. Must be a C_IDENTIFIER."
    }, 
    "value": {
      "type": [
        "string", 
        "null"
      ], 
      "description": "Variable references $(VAR_NAME) are expanded using the previous defined environment variables in the container and any service environment variables. If a variable cannot be resolved, the reference in the input string will be unchanged. The $(VAR_NAME) syntax can be escaped with a double $$, ie: $$(VAR_NAME). Escaped references will never be expanded, regardless of whether the variable exists or not. Defaults to \"\"."
    }
  }
}