title: python kubernetes API error when trying to mount volume
body: <p>I am using python with python-kubernetes with a minikube running locally, e.g there are no cloud issues. </p>
  
  <p>I am trying to create a job and provide it with data to run on. I would like to provide it with a mount of a directory with my local machine data. </p>
  
  <p>I am using <a href="https://github.com/kubernetes-client/python/blob/master/examples/job_examples.py" rel="nofollow noreferrer">this</a> example and trying to add a mount volume
  This is my code after adding the keyword volume_mounts (I tried multiple places, multiple keywords and nothing works) </p>
  
  <pre><code>from os import path
  
  import yaml
  
  from kubernetes import client, config
  
  JOB_NAME = "pi"
  
  
  def create_job_object():
      # Configureate Pod template container
      container = client.V1Container(
          name="pi",
          image="perl",
          volume_mounts=["/home/user/data"],
          command=["perl", "-Mbignum=bpi", "-wle", "print bpi(2000)"])
      # Create and configurate a spec section
      template = client.V1PodTemplateSpec(
          metadata=client.V1ObjectMeta(labels={
              "app": "pi"}),
          spec=client.V1PodSpec(restart_policy="Never",
                                containers=[container]))
      # Create the specification of deployment
      spec = client.V1JobSpec(
          template=template,
          backoff_limit=0)
      # Instantiate the job object
      job = client.V1Job(
          api_version="batch/v1",
          kind="Job",
          metadata=client.V1ObjectMeta(name=JOB_NAME),
          spec=spec)
  
      return job
  
  
  def create_job(api_instance, job):
      # Create job
      api_response = api_instance.create_namespaced_job(
          body=job,
          namespace="default")
      print("Job created. status='%s'" % str(api_response.status))
  
  
  def update_job(api_instance, job):
      # Update container image
      job.spec.template.spec.containers[0].image = "perl"
      # Update the job
      api_response = api_instance.patch_namespaced_job(
          name=JOB_NAME,
          namespace="default",
          body=job)
      print("Job updated. status='%s'" % str(api_response.status))
  
  
  def delete_job(api_instance):
      # Delete job
      api_response = api_instance.delete_namespaced_job(
          name=JOB_NAME,
          namespace="default",
          body=client.V1DeleteOptions(
              propagation_policy='Foreground',
              grace_period_seconds=5))
      print("Job deleted. status='%s'" % str(api_response.status))
  
  
  def main():
      # Configs can be set in Configuration class directly or using helper
      # utility. If no argument provided, the config will be loaded from
      # default location.
      config.load_kube_config()
      batch_v1 = client.BatchV1Api()
      # Create a job object with client-python API. The job we
      # created is same as the `pi-job.yaml` in the /examples folder.
  
  
      job = create_job_object()
  
      create_job(batch_v1, job)
  
      update_job(batch_v1, job)
  
      delete_job(batch_v1)
  
  
  if __name__ == '__main__':
      main()
  </code></pre>
  
  <p>I get this error </p>
  
  <blockquote>
    <p>HTTP response body:
    {"kind":"Status","apiVersion":"v1","metadata":{},"status":"Failure","message":"Job
    in version \"v1\" cannot be handled as a Job: v1.Job.Spec:
    v1.JobSpec.Template: v1.PodTemplateSpec.Spec: v1.PodSpec.Containers:
    []v1.Container: v1.Container.VolumeMounts: []v1.VolumeMount:
    readObjectStart: expect { or n, but found \", error found in #10 byte
    of ...|ounts\": [\"/home/user|..., bigger context ...| \"image\":
    \"perl\", \"name\": \"pi\", \"volumeMounts\": [\"/home/user/data\"]}],
    \"restartPolicy\": \"Never\"}}}}|...","reason":"BadRequest","code":400</p>
  </blockquote>
  
  <p>What am i missing here? </p>
  
  <p>Is there another way to expose data to the job?</p>
  
  <p>edit: trying to use client.V1Volumemount
  I am trying to add this code, and add mount object in different init functions eg.</p>
  
  <pre><code>mount = client.V1VolumeMount(mount_path="/data", name="shai")
  
  client.V1Container
  client.V1PodTemplateSpec
  client.V1JobSpec
  client.V1Job
  </code></pre>
  
  <p>under multiple keywords, it all results in errors, is this the correct object to use? How shell I use it if at all? </p>
  
  <p>edit: trying to pass volume_mounts as a list with the following code suggested in the answers: </p>
  
  <pre><code>def create_job_object():
      # Configureate Pod template container
      container = client.V1Container(
          name="pi",
          image="perl",
          volume_mounts=["/home/user/data"],
          command=["perl", "-Mbignum=bpi", "-wle", "print bpi(2000)"])
      # Create and configurate a spec section
      template = client.V1PodTemplateSpec(
          metadata=client.V1ObjectMeta(labels={
              "app": "pi"}),
          spec=client.V1PodSpec(restart_policy="Never",
                                containers=[container]))
      # Create the specification of deployment
      spec = client.V1JobSpec(
          template=template,
          backoff_limit=0)
      # Instantiate the job object
      job = client.V1Job(
          api_version="batch/v1",
          kind="Job",
          metadata=client.V1ObjectMeta(name=JOB_NAME),
          spec=spec)
  
      return job
  </code></pre>
  
  <p>And still getting a similar error </p>
  
  <blockquote>
    <p>kubernetes.client.rest.ApiException: (422) Reason: Unprocessable
    Entity HTTP response headers: HTTPHeaderDict({'Content-Type':
    'application/json', 'Date': 'Tue, 06 Aug 2019 06:19:13 GMT',
    'Content-Length': '401'}) HTTP response body:
    {"kind":"Status","apiVersion":"v1","metadata":{},"status":"Failure","message":"Job.batch
    \"pi\" is invalid:
    spec.template.spec.containers[0].volumeMounts[0].name: Not found:
    \"d\"","reason":"Invalid","details":{"name":"pi","group":"batch","kind":"Job","causes":[{"reason":"FieldValueNotFound","message":"Not
    found:
    \"d\"","field":"spec.template.spec.containers[0].volumeMounts[0].name"}]},"code":422}</p>
  </blockquote>