{
  "$schema": "http://json-schema.org/schema#", 
  "type": "object", 
  "description": "EnvVarSource represents a source for the value of an EnvVar.", 
  "properties": {
    "secretKeyRef": {
      "description": "Selects a key of a secret in the pod's namespace", 
      "$ref": "_definitions.json#/definitions/io.k8s.kubernetes.pkg.api.v1.SecretKeySelector"
    }, 
    "fieldRef": {
      "description": "Selects a field of the pod: supports metadata.name, metadata.namespace, metadata.labels, metadata.annotations, spec.nodeName, spec.serviceAccountName, status.hostIP, status.podIP.", 
      "$ref": "_definitions.json#/definitions/io.k8s.kubernetes.pkg.api.v1.ObjectFieldSelector"
    }, 
    "resourceFieldRef": {
      "description": "Selects a resource of the container: only resources limits and requests (limits.cpu, limits.memory, requests.cpu and requests.memory) are currently supported.", 
      "$ref": "_definitions.json#/definitions/io.k8s.kubernetes.pkg.api.v1.ResourceFieldSelector"
    }, 
    "configMapKeyRef": {
      "description": "Selects a key of a ConfigMap.", 
      "$ref": "_definitions.json#/definitions/io.k8s.kubernetes.pkg.api.v1.ConfigMapKeySelector"
    }
  }
}