Replace use of deprecated --prune-whitelist kubectl flag

[adleong]

What problem are you trying to solve?

As of k8s 1.26 the kubectl flag --prune-whitelist has been deprecated and --prune-allowlist has been created to replace it. We reference this flag in examples and instructions which are output from the CLI.

How should the problem be solved?

We should update these references of --prune-whitelist to --prune-allowlist once our minimum support k8s version is 1.26 or later.

We also use the flag in integration tests should update the usage of this flag once the version of kubectl in the dev image is 1.26 or later.

Any alternatives you've considered?

N/A

How would users interact with this feature?

No response

Would you like to work on this feature?

None

[nikzayn]

I would like to take this up @adleong

[adleong]

Hi @nikzayn! Unfortunately, we cannot make this change until our minimum supported Kubernetes version is 1.26 or greater. It is currently 1.21. So any work on this issue will need to wait, for now.

[nikzayn]

Sure thing @adleong. Thanks for updating. I will look out for some other issue