refinement of flag parsing (cloud cluster)

[mirshahriar]

Summary

Sample

type clusterUpgradeFlags struct {
	rotatorConfig

	cluster        string
	version        string
}

func (flags *clusterUpgradeFlags) addFlags(command *cobra.Command) {
	flags.rotatorConfig.addFlags(command)

	command.Flags().StringVar(&flags.cluster, "cluster", "", "The id of the cluster to be upgraded.")
	command.Flags().StringVar(&flags.version, "version", "", "The Kubernetes version to target. Use 'latest' or versions such as '1.16.10'.")

	_ = command.MarkFlagRequired("cluster")
}

Ticket Link

Jira Ticket

Release Note

NONE

[fmartingr]

Looks awesome! And it'll be easier to maintain. 👍

[gabrieljackson]

LGTM. No blockers on my end.