## kubectl update

Update a resource by filename or stdin.

### Synopsis


Update a resource by filename or stdin.

JSON and YAML formats are accepted.

```
kubectl update -f FILENAME
```

### Examples

```
// Update a pod using the data in pod.json.
$ kubectl update -f pod.json

// Update a pod based on the JSON passed into stdin.
$ cat pod.json | kubectl update -f -

// Update a pod by downloading it, applying the patch, then updating. Requires apiVersion be specified.
$ kubectl update pods my-pod --patch='{ "apiVersion": "v1beta1", "desiredState": { "manifest": [{ "cpu": 100 }]}}'
```

### Options

```
  -f, --filename=[]: Filename, directory, or URL to file to use to update the resource.
  -h, --help=false: help for update
      --patch="": A JSON document to override the existing resource. The resource is downloaded, patched with the JSON, then updated.
```

### Options inherited from parent commands

```
      --alsologtostderr=false: log to standard error as well as files
      --api-version="": The API version to use when talking to the server
      --certificate-authority="": Path to a cert. file for the certificate authority.
      --client-certificate="": Path to a client key file for TLS.
      --client-key="": Path to a client key file for TLS.
      --cluster="": The name of the kubeconfig cluster to use
      --context="": The name of the kubeconfig context to use
      --insecure-skip-tls-verify=false: If true, the server's certificate will not be checked for validity. This will make your HTTPS connections insecure.
      --kubeconfig="": Path to the kubeconfig file to use for CLI requests.
      --log_backtrace_at=:0: when logging hits line file:N, emit a stack trace
      --log_dir=: If non-empty, write log files in this directory
      --log_flush_frequency=5s: Maximum number of seconds between log flushes
      --logtostderr=true: log to standard error instead of files
      --match-server-version=false: Require server version to match client version
      --namespace="": If present, the namespace scope for this CLI request.
      --password="": Password for basic authentication to the API server.
  -s, --server="": The address and port of the Kubernetes API server
      --stderrthreshold=2: logs at or above this threshold go to stderr
      --token="": Bearer token for authentication to the API server.
      --user="": The name of the kubeconfig user to use
      --username="": Username for basic authentication to the API server.
      --v=0: log level for V logs
      --validate=false: If true, use a schema to validate the input before sending it
      --vmodule=: comma-separated list of pattern=N settings for file-filtered logging
```

### SEE ALSO
* [kubectl](kubectl.md)	 - kubectl controls the Kubernetes cluster manager

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