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kubectl expose

    Synopsis

    Expose a resource as a new Kubernetes service.

    Looks up a deployment, service, replica set, replication controller or pod by name and uses the selector for that resource as the selector for a new service on the specified port. A deployment or replica set will be exposed as a service only if its selector is convertible to a selector that service supports, i.e. when the selector contains only the matchLabels component. Note that if no port is specified via --port and the exposed resource has multiple ports, all will be re-used by the new service. Also if no labels are specified, the new service will re-use the labels from the resource it exposes.

    Possible resources include (case insensitive):

    pod (po), service (svc), replicationcontroller (rc), deployment (deploy), replicaset (rs)

    kubectl expose (-f FILENAME | TYPE NAME) [--port=port] [--protocol=TCP|UDP|SCTP] [--target-port=number-or-name] [--name=name] [--external-ip=external-ip-of-service] [--type=type]

    Examples

      # Create a service for a replicated nginx, which serves on port 80 and connects to the containers on port 8000
  kubectl expose rc nginx --port=80 --target-port=8000
  
  # Create a service for a replication controller identified by type and name specified in "nginx-controller.yaml", which serves on port 80 and connects to the containers on port 8000
  kubectl expose -f nginx-controller.yaml --port=80 --target-port=8000
  
  # Create a service for a pod valid-pod, which serves on port 444 with the name "frontend"
  kubectl expose pod valid-pod --port=444 --name=frontend
  
  # Create a second service based on the above service, exposing the container port 8443 as port 443 with the name "nginx-https"
  kubectl expose service nginx --port=443 --target-port=8443 --name=nginx-https
  
  # Create a service for a replicated streaming application on port 4100 balancing UDP traffic and named 'video-stream'.
  kubectl expose rc streamer --port=4100 --protocol=UDP --name=video-stream
  
  # Create a service for a replicated nginx using replica set, which serves on port 80 and connects to the containers on port 8000
  kubectl expose rs nginx --port=80 --target-port=8000
  
  # Create a service for an nginx deployment, which serves on port 80 and connects to the containers on port 8000
  kubectl expose deployment nginx --port=80 --target-port=8000

    Options

    --allow-missing-template-keys     Default: true

    If true, ignore any errors in templates when a field or map key is missing in the template. Only applies to golang and jsonpath output formats.

    --cluster-ip string

    ClusterIP to be assigned to the service. Leave empty to auto-allocate, or set to 'None' to create a headless service.

    --dry-run string[="unchanged"]     Default: "none"

    Must be "none", "server", or "client". If client strategy, only print the object that would be sent, without sending it. If server strategy, submit server-side request without persisting the resource.

    --external-ip string

    Additional external IP address (not managed by Kubernetes) to accept for the service. If this IP is routed to a node, the service can be accessed by this IP in addition to its generated service IP.

    --field-manager string     Default: "kubectl-expose"

    Name of the manager used to track field ownership.

    -f, --filename strings

    Filename, directory, or URL to files identifying the resource to expose a service

    -h, --help

    help for expose

    -k, --kustomize string

    Process the kustomization directory. This flag can't be used together with -f or -R.

    -l, --labels string

    Labels to apply to the service created by this call.

    --load-balancer-ip string

    IP to assign to the LoadBalancer. If empty, an ephemeral IP will be created and used (cloud-provider specific).

    --name string

    The name for the newly created object.

    -o, --output string

    Output format. One of: (json, yaml, name, go-template, go-template-file, template, templatefile, jsonpath, jsonpath-as-json, jsonpath-file).

    --override-type string     Default: "merge"

    The method used to override the generated object: json, merge, or strategic.

    --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 string

    The port that the service should serve on. Copied from the resource being exposed, if unspecified

    --protocol string

    The network protocol for the service to be created. Default is 'TCP'.

    -R, --recursive

    Process the directory used in -f, --filename recursively. Useful when you want to manage related manifests organized within the same directory.

    --save-config

    If true, the configuration of current object will be saved in its annotation. Otherwise, the annotation will be unchanged. This flag is useful when you want to perform kubectl apply on this object in the future.

    --selector string

    A label selector to use for this service. Only equality-based selector requirements are supported. If empty (the default) infer the selector from the replication controller or replica set.)

    --session-affinity string

    If non-empty, set the session affinity for the service to this; legal values: 'None', 'ClientIP'

    --show-managed-fields

    If true, keep the managedFields when printing objects in JSON or YAML format.

    --target-port string

    Name or number for the port on the container that the service should direct traffic to. Optional.

    --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].

    --type string

    Type for this service: ClusterIP, NodePort, LoadBalancer, or ExternalName. Default is 'ClusterIP'.

    --as string

    Username to impersonate for the operation. User could be a regular user or a service account in a namespace.

    --as-group strings

    Group to impersonate for the operation, this flag can be repeated to specify multiple groups.

    --as-uid string

    UID to impersonate for the operation.

    --cache-dir string     Default: "$HOME/.kube/cache"

    Default cache directory

    --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

    --default-not-ready-toleration-seconds int     Default: 300

    Indicates the tolerationSeconds of the toleration for notReady:NoExecute that is added by default to every pod that does not already have such a toleration.

    --default-unreachable-toleration-seconds int     Default: 300

    Indicates the tolerationSeconds of the toleration for unreachable:NoExecute that is added by default to every pod that does not already have such a toleration.

    --disable-compression

    If true, opt-out of response compression for all requests to the server

    --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.

    --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

    --profile string     Default: "none"

    Name of profile to capture. One of (none|cpu|heap|goroutine|threadcreate|block|mutex)

    --profile-output string     Default: "profile.pprof"

    Name of the file to write the profile to

    --request-timeout string     Default: "0"

    The length of time to wait before giving up on a single server request. Non-zero values should contain a corresponding time unit (e.g. 1s, 2m, 3h). A value of zero means don't timeout requests.

    -s, --server string

    The address and port of the Kubernetes API server

    --storage-driver-buffer-duration duration     Default: 1m0s

    Writes in the storage driver will be buffered for this duration, and committed to the non memory backends as a single transaction

    --storage-driver-db string     Default: "cadvisor"

    database name

    --storage-driver-host string     Default: "localhost:8086"

    database host:port

    --storage-driver-password string     Default: "root"

    database password

    --storage-driver-secure

    use secure connection with database

    --storage-driver-table string     Default: "stats"

    table name

    --storage-driver-user string     Default: "root"

    database username

    --tls-server-name string

    Server name to use for server certificate validation. If it is not provided, the hostname used to contact the server is used

    --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

    --version version[=true]

    --version, --version=raw prints version information and quits; --version=vX.Y.Z... sets the reported version

    --warnings-as-errors

    Treat warnings received from the server as errors and exit with a non-zero exit code

    See Also

    • kubectl - kubectl controls the Kubernetes cluster manager