# metalcloud-cli vm-instance-group update

Update VM instance group configuration

## Synopsis

Update VM instance group configuration.

This command allows you to modify the configuration of an existing VM instance
group. You can update the label or custom variables associated with the group.
At least one of the available flags must be specified.

ARGUMENTS:
  infrastructure_id     The ID of the infrastructure containing the group
  vm_instance_group_id  The ID of the VM instance group to update

FLAGS:
  --label string                      Set or update the VM instance group label
  --custom-variables-source string    Source of custom variables to apply
                                     Can be 'pipe' for stdin or path to a JSON file

FLAG DEPENDENCIES:
  At least one of --label or --custom-variables-source must be provided

EXAMPLES:
  ## Update the label of a VM instance group
  metalcloud-cli vm-instance-group update 12345 67890 --label "Web Servers"
  
  ## Update custom variables from a JSON file
  metalcloud-cli vmg edit 12345 67890 --custom-variables-source /path/to/vars.json
  
  ## Update custom variables from stdin
  echo '{"env": "production"}' | metalcloud-cli vm-group update 12345 67890 --custom-variables-source pipe
  
  ## Update both label and custom variables
  metalcloud-cli vm-instance-group update 12345 67890 --label "Production Web" --custom-variables-source vars.json

```
metalcloud-cli vm-instance-group update infrastructure_id vm_instance_group_id [flags]
```

### Options

```
      --custom-variables-source string   Source of the custom variables. Can be 'pipe' or path to a JSON file.
  -h, --help                             help for update
      --label string                     Set the VM instance group label.
```

### Options inherited from parent commands

```
  -k, --api_key string         MetalCloud API key
  -c, --config string          Config file path
  -d, --debug                  Set to enable debug logging
  -e, --endpoint string        MetalCloud API endpoint
  -f, --format string          Output format. Supported values are 'text','csv','md','json','yaml'. (default "text")
  -i, --insecure_skip_verify   Set to allow insecure transport
  -l, --log_file string        Log file path
  -v, --verbosity string       Log level verbosity (default "INFO")
```

### SEE ALSO

* [metalcloud-cli vm-instance-group](/content/configuration/cli/metalcloud-cli_vm-instance-group.md)	 - Manage VM instance groups within infrastructures

#### Auto generated by spf13/cobra on 11-Aug-2025