title: livenessProbe with secret not working in kubernetes
body: <p>I am trying to pass livenessProbe in my kubernetes deployment yaml file to perform the health of my application. so, I created a secret with token value and passing as below</p>
  
  <pre><code>      livenessProbe:
          httpGet:
            path: test/actuator/health
            port: 9001
            httpHeaders:
            - name: Authorization
              valueFrom:
                secretKeyRef:
                  name: actuator-token
                  value: token
  </code></pre>
  
  <p>but I am getting the below error</p>
  
  <p><code>error: error validating "deployment.yaml": error validating data: [ValidationError(Deployment.spec.template.spec.containers[0].livenessProbe.httpGet.httpHeaders[0]): unknown field "valueFrom" in io.k8s.api.core.v1.HTTPHeader, ValidationError(Deployment.spec.template.spec.containers[0].livenessProbe.httpGet.httpHeaders[0]): missing required field "value" in io.k8s.api.core.v1.HTTPHeader, ValidationError(Deployment.spec.template.spec.containers[0].readinessProbe.httpGet.httpHeaders): invalid type for io.k8s.api.core.v1.HTTPGetAction.httpHeaders: got "map", expected "array"]; if you choose to ignore these errors, turn validation off with --validate=false</code></p>
  
  <p>Kindly suggest and appreciate for the help.</p>
  
  <p>Also let us know is their any better way of handling tokens as I don't want to provide token value directly on my deployment yaml file.</p>