gcloud compute instance-groups unmanaged set-named-ports

NAME: gcloud compute instance-groups unmanaged set-named-ports - sets the list of named ports for an instance group
SYNOPSIS: gcloud compute instance-groups unmanaged set-named-ports NAME --named-ports = [ NAME : PORT , …] [ --zone = ZONE ] [ GCLOUD_WIDE_FLAG … ]
DESCRIPTION: Named ports are key:value pairs metadata representing the service name and the port that it's running on. Named ports can be assigned to an instance group, which indicates that the service is available on all instances in the group. This information is used by Application Load Balancers and proxy Network Load Balancers.
gcloud compute instance-groups unmanaged set-named-ports sets the list of named ports for all instances in an instance group.

Note: Running this command will clear all existing named ports.
EXAMPLES: For example, to apply the named ports to an entire instance group:
gcloud compute instance-groups unmanaged set-named-ports example-instance-group --named-ports = example-service:1111 --zone = us-central1-a

The above example will assign a name 'example-service' for port 1111 to the instance group called 'example-instance-group' in the us-central1-a zone. The command removes any named ports that are already set for this instance group.

To clear named ports from instance group provide empty named ports list as parameter:

gcloud compute instance-groups unmanaged set-named-ports example-instance-group --named-ports = "" --zone = us-central1-a
POSITIONAL ARGUMENTS: NAME

Name of the instance group to operate on.
REQUIRED FLAGS: --named-ports =[ NAME : PORT ,…]

The comma-separated list of key:value pairs representing the service name and the port that it is running on.
To clear the list of named ports pass empty list as flag value. For example:

gcloud compute instance-groups unmanaged set-named-ports example-instance-group --named-ports ""
OPTIONAL FLAGS: --zone = ZONE

Zone of the instance group to operate on. If not specified and the compute/zone property isn't set, you might be prompted to select a zone (interactive mode only).
To avoid prompting when this flag is omitted, you can set the compute/zone property:

gcloud config set compute/zone ZONE

A list of zones can be fetched by running:

gcloud compute zones list

To unset the property, run:

gcloud config unset compute/zone

Alternatively, the zone can be stored in the environment variable CLOUDSDK_COMPUTE_ZONE .
GCLOUD WIDE FLAGS: These flags are available to all commands: --access-token-file , --account , --billing-project , --configuration , --flags-file , --flatten , --format , --help , --impersonate-service-account , --log-http , --project , --quiet , --trace-token , --user-output-enabled , --verbosity .
Run $ gcloud help for details.
NOTES: These variants are also available:
gcloud alpha compute instance-groups unmanaged set-named-ports

gcloud beta compute instance-groups unmanaged set-named-ports

gcloud preview compute instance-groups unmanaged set-named-ports

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gcloud compute instance-groups unmanaged set-named-ports