website/docs/user-guide/kubectl/kubectl_run.md

---
---

## kubectl run

Run a particular image on the cluster

### Synopsis



Create and run a particular image, possibly replicated.
Creates a deployment or job to manage the created container(s).

```
kubectl run NAME --image=image [--env="key=value"] [--port=port] [--replicas=replicas] [--dry-run=bool] [--overrides=inline-json] [--command] -- [COMMAND] [args...]
```

### Examples

```

# 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=cluster" --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 deployment with a partial set of values parsed from JSON.
kubectl run nginx --image=nginx --overrides='{ "apiVersion": "v1", "spec": { ... } }'

# Start a pod of busybox and keep it in the foreground, don't restart it if it exits.
kubectl run -i -t busybox --image=busybox --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>

# Start the perl container to compute π to 2000 places and print it out.
kubectl run pi --image=perl --restart=OnFailure -- perl -Mbignum=bpi -wle 'print bpi(2000)'

# Start the scheduled job to compute π to 2000 places and print it out every 5 minutes.
kubectl run pi --schedule="0/5 * * * ?" --image=perl --restart=OnFailure -- perl -Mbignum=bpi -wle 'print bpi(2000)'
```

### Options

```
      --attach                     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/--stdin' is set, in which case the default is true. With '--restart=Never' the exit code of the container process is returned.
      --command                    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                    If true, only print the object that would be sent, without sending it.
      --env value                  Environment variables to set in the container (default [])
      --expose                     If true, a public, external service is created for the container(s) which are run
      --generator string           The name of the API generator to use.  Default is 'deployment/v1beta1' if --restart=Always, 'job/v1' for OnFailure and 'run-pod/v1' for Never.  This will happen only for cluster version at least 1.3, for 1.2 we will fallback to 'deployment/v1beta1' for --restart=Always, 'job/v1' for others, for olders we will fallback to 'run/v1' for --restart=Always, 'run-pod/v1' for others.
      --hostport int               The host port mapping for the container port. To demonstrate a single-machine container. (default -1)
      --image string               The image for the container to run.
      --image-pull-policy string   The image pull policy for the container. If left empty, this value will not be specified by the client and defaulted by the server
      --include-extended-apis      If true, include definitions of new APIs via calls to the API server. [default true] (default true)
  -l, --labels string              Labels to apply to the pod(s).
      --leave-stdin-open           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 string              The resource requirement limits for this container.  For example, 'cpu=200m,memory=512Mi'.  Note that server side components may assign limits depending on the server configuration, such as limit ranges.
      --no-headers                 When using the default or custom-column output format, don't print headers.
  -o, --output string              Output format. One of: json|yaml|wide|name|custom-columns=...|custom-columns-file=...|go-template=...|go-template-file=...|jsonpath=...|jsonpath-file=... See custom columns [http://kubernetes.io/docs/user-guide/kubectl-overview/#custom-columns], golang template [http://golang.org/pkg/text/template/#pkg-overview] and jsonpath template [http://kubernetes.io/docs/user-guide/jsonpath].
      --output-version string      Output the formatted object with the given group version (for ex: 'extensions/v1beta1').
      --overrides string           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 int                   The port that this container exposes.  If --expose is true, this is also the port used by the service that is created. (default -1)
      --quiet                      If true, suppress prompt messages.
      --record                     Record current kubectl command in the resource annotation. If set to false, do not record the command. If set to true, record the command. If not set, default to updating the existing annotation value only if one already exists.
  -r, --replicas int               Number of replicas to create for this container. Default is 1. (default 1)
      --requests string            The resource requirement requests for this container.  For example, 'cpu=100m,memory=256Mi'.  Note that server side components may assign requests depending on the server configuration, such as limit ranges.
      --restart string             The restart policy for this Pod.  Legal values [Always, OnFailure, Never].  If set to 'Always' a deployment is created for this pod, if set to 'OnFailure', a job is created for this pod, if set to 'Never', a regular pod is created. For the latter two --replicas must be 1.  Default 'Always' (default "Always")
      --rm                         If true, delete resources created in this command for attached containers.
      --save-config                If true, the configuration of current object will be saved in its annotation. This is useful when you want to perform kubectl apply on this object in the future.
      --schedule string            A schedule in the Cron format the job should be run with.
      --service-generator string   The name of the generator to use for creating a service.  Only used if --expose is true (default "service/v2")
      --service-overrides string   An inline JSON override for the generated service object. If this is non-empty, it is used to override the generated object. Requires that the object supply a valid apiVersion field.  Only used if --expose is true.
  -a, --show-all                   When printing, show all resources (default hide terminated pods.)
      --show-labels                When printing, show all labels as the last column (default hide labels column)
      --sort-by string             If non-empty, sort list types using this field specification.  The field specification is expressed as a JSONPath expression (e.g. '{.metadata.name}'). The field in the API resource specified by this JSONPath expression must be an integer or a string.
  -i, --stdin                      Keep stdin open on the container(s) in the pod, even if nothing is attached.
      --template string            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].
  -t, --tty                        Allocated a TTY for each container in the pod.
```

### Options inherited from parent commands

```
      --alsologtostderr value          log to standard error as well as files
      --as string                      Username to impersonate for the operation
      --certificate-authority string   Path to a cert. file for the certificate authority
      --client-certificate string      Path to a client certificate file for TLS
      --client-key string              Path to a client key file for TLS
      --cluster string                 The name of the kubeconfig cluster to use
      --context string                 The name of the kubeconfig context to use
      --insecure-skip-tls-verify       If true, the server's certificate will not be checked for validity. This will make your HTTPS connections insecure
      --kubeconfig string              Path to the kubeconfig file to use for CLI requests.
      --log-backtrace-at value         when logging hits line file:N, emit a stack trace (default :0)
      --log-dir value                  If non-empty, write log files in this directory
      --logtostderr value              log to standard error instead of files
      --match-server-version           Require server version to match client version
  -n, --namespace string               If present, the namespace scope for this CLI request
      --password string                Password for basic authentication to the API server
  -s, --server string                  The address and port of the Kubernetes API server
      --stderrthreshold value          logs at or above this threshold go to stderr (default 2)
      --token string                   Bearer token for authentication to the API server
      --user string                    The name of the kubeconfig user to use
      --username string                Username for basic authentication to the API server
  -v, --v value                        log level for V logs
      --vmodule value                  comma-separated list of pattern=N settings for file-filtered logging
```



###### Auto generated by spf13/cobra on 2-Sep-2016





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