ensure clusterpool scale specifies a valid size

[chrisahl]

Signed-off-by: Chris Ahl cahl@redhat.com

For issue #175

[itdove]

@chrisahl There is in cobra a method cmd.Flags().Changed() which return true if the flag was set and so allows you in the validate() method (you have pass the cmd to the validate() method) to check if flag is set, if not raise an error making this flag mandatory.
To test your change you can use:
cm scale cp <cp_name> --dry-run which will not change your cp.
Also if you change the flag description or default values, you must run make doc-help to regenerate the documentation.

[chrisahl]

/cc itdove

[sonarcloud]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
0 Code Smells

No Coverage information
No Duplication information

[itdove]

/lgtm

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: chrisahl, itdove

The full list of commands accepted by this bot can be found here.

The pull request process is described here

Needs approval from an approver in each of these files:

• OWNERS [itdove]

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment