Use this operation to add an existing user to a group.
knife ionoscloud group user add USER_ID [USER_ID] (options)
ionoscloud_url: --url URL
the Ionoscloud API URL
extra_config_file: --extra-config EXTRA_CONFIG_FILE_PATH, -e EXTRA_CONFIG_FILE_PATH
path to the additional config file
group_id: --group-id GROUP_ID, -G GROUP_ID
iD of the group. (required)
ionoscloud_username: --username USERNAME, -u USERNAME
your Ionoscloud username
ionoscloud_password: --password PASSWORD, -p PASSWORD
your Ionoscloud password
ionoscloud_token: --token PASSWORD
your Ionoscloud access token
knife ionoscloud group user add USER_ID