gcloud alpha compute networks subnets expand-ip-range - expand the IP range of a Compute Engine subnetwork
gcloud alpha compute networks subnets expand-ip-range NAME --prefix-length=PREFIX_LENGTH [--region=REGION] [GCLOUD_WIDE_FLAG ...]
(ALPHA) gcloud alpha compute networks subnets expand-ip-range expands the IP range of a VPC subnetwork.
For more information about expanding a subnet, see Expanding a primary IP range https://cloud.google.com/vpc/docs/using-vpc#expand-subnet.
This command doesn't work for secondary subnets or for subnets that are used exclusively for load balancer proxies. For more information, see Proxy-only subnets for load balancers https://cloud.google.com/load-balancing/docs/l7-internal/proxy-only-subnets.
To expand the IP range of SUBNET to /16, run:
$ gcloud alpha compute networks subnets expand-ip-range SUBNET \ --region=us-central1 --prefix-length=16
- NAME
Name of the subnetwork to operate on.
- --prefix-length=PREFIX_LENGTH
The new prefix length of the subnet. It must be smaller than the original and in the private address space 10.0.0.0/8, 172.16.0.0/12 or 192.168.0.0/16 defined in RFC 1918.
- --region=REGION
Region of the subnetwork to operate on. If not specified, you might be prompted to select a region (interactive mode only).
To avoid prompting when this flag is omitted, you can set the compute/region property:
$ gcloud config set compute/region REGION
A list of regions can be fetched by running:
$ gcloud compute regions list
To unset the property, run:
$ gcloud config unset compute/region
Alternatively, the region can be stored in the environment variable CLOUDSDK_COMPUTE_REGION.
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.
This command is currently in alpha and might change without notice. If this command fails with API permission errors despite specifying the correct project, you might be trying to access an API with an invitation-only early access allowlist. These variants are also available:
$ gcloud compute networks subnets expand-ip-range
$ gcloud beta compute networks subnets expand-ip-range