---
layout: docwithnav
title: "kubectl run"
---
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## kubectl run

Run a particular image on the cluster.

### Synopsis


Create and run a particular image, possibly replicated.
Creates a replication controller to manage the created container(s).

```
{% raw %}
kubectl run NAME --image=image [--env="key=value"] [--port=port] [--replicas=replicas] [--dry-run=bool] [--overrides=inline-json]
{% endraw %}
```

### Examples

```
{% raw %}
# Start a single instance of nginx.
$ kubectl run nginx --image=nginx

# Start a single instance of hazelcast and let the container expose port 5701 .
$ kubectl run hazelcast --image=hazelcast --port=5701

# Start a single instance of hazelcast and set environment variables "DNS_DOMAIN=cluster" and "POD_NAMESPACE=default" in the container.
$ kubectl run hazelcast --image=hazelcast --env="DNS_DOMAIN=local" --env="POD_NAMESPACE=default"

# Start a replicated instance of nginx.
$ kubectl run nginx --image=nginx --replicas=5

# Dry run. Print the corresponding API objects without creating them.
$ kubectl run nginx --image=nginx --dry-run

# Start a single instance of nginx, but overload the spec of the replication controller with a partial set of values parsed from JSON.
$ kubectl run nginx --image=nginx --overrides='{ "apiVersion": "v1", "spec": { ... } }'

# Start a single instance of nginx and keep it in the foreground, don't restart it if it exits.
$ kubectl run -i -tty nginx --image=nginx --restart=Never

# Start the nginx container using the default command, but use custom arguments (arg1 .. argN) for that command.
$ kubectl run nginx --image=nginx -- <arg1> <arg2> ... <argN>

# Start the nginx container using a different command and custom arguments
$ kubectl run nginx --image=nginx --command -- <cmd> <arg1> ... <argN>
{% endraw %}
```

### Options

```
{% raw %}
      --attach[=false]: If true, wait for the Pod to start running, and then attach to the Pod as if 'kubectl attach ...' were called.  Default false, unless '-i/--interactive' is set, in which case the default is true.
      --command[=false]: If true and extra arguments are present, use them as the 'command' field in the container, rather than the 'args' field which is the default.
      --dry-run[=false]: If true, only print the object that would be sent, without sending it.
      --env=[]: Environment variables to set in the container
      --generator="": The name of the API generator to use.  Default is 'run/v1' if --restart=Always, otherwise the default is 'run-pod/v1'.
      --hostport=-1: The host port mapping for the container port. To demonstrate a single-machine container.
      --image="": The image for the container to run.
  -l, --labels="": Labels to apply to the pod(s).
      --leave-stdin-open[=false]: If the pod is started in interactive mode or with stdin, leave stdin open after the first attach completes. By default, stdin will be closed after the first attach completes.
      --limits="": The resource requirement limits for this container.  For example, 'cpu=200m,memory=512Mi'
      --no-headers[=false]: When using the default output, don't print headers.
  -o, --output="": Output format. One of: json|yaml|wide|name|go-template=...|go-template-file=...|jsonpath=...|jsonpath-file=... See golang template [http://golang.org/pkg/text/template/#pkg-overview] and jsonpath template [http://releases.k8s.io/release-1.1/docs/user-guide/jsonpath.md].
      --output-version="": Output the formatted object with the given version (default api-version).
      --overrides="": An inline JSON override for the generated object. If this is non-empty, it is used to override the generated object. Requires that the object supply a valid apiVersion field.
      --port=-1: The port that this container exposes.
  -r, --replicas=1: Number of replicas to create for this container. Default is 1.
      --requests="": The resource requirement requests for this container.  For example, 'cpu=100m,memory=256Mi'
      --restart="Always": The restart policy for this Pod.  Legal values [Always, OnFailure, Never].  If set to 'Always' a replication controller is created for this pod, if set to OnFailure or Never, only the Pod is created and --replicas must be 1.  Default 'Always'
  -a, --show-all[=false]: When printing, show all resources (default hide terminated pods.)
      --sort-by="": If non-empty, sort list types using this field specification.  The field specification is expressed as a JSONPath expression (e.g. 'ObjectMeta.Name'). The field in the API resource specified by this JSONPath expression must be an integer or a string.
  -i, --stdin[=false]: Keep stdin open on the container(s) in the pod, even if nothing is attached.
      --template="": Template string or path to template file to use when -o=go-template, -o=go-template-file. The template format is golang templates [http://golang.org/pkg/text/template/#pkg-overview].
      --tty[=false]: Allocated a TTY for each container in the pod.  Because -t is currently shorthand for --template, -t is not supported for --tty. This shorthand is deprecated and we expect to adopt -t for --tty soon.
{% endraw %}
```

### Options inherited from parent commands

```
{% raw %}
      --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
      --vmodule=: comma-separated list of pattern=N settings for file-filtered logging
{% endraw %}
```

### SEE ALSO

* [kubectl](kubectl.html)	 - kubectl controls the Kubernetes cluster manager

###### Auto generated by spf13/cobra at 2015-09-25 23:39:47.894967733 +0000 UTC



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