[release-0.25] Fixed "tanzu cluster get" command to return Classy cluster details on TKGS

[prkalle]

… TKGS

• This is achieved by fixing the "DescribeCluster" API to detect the Classy clusters
  in TKGS and return the overall details of the cluster( same as for TKC cluster).However
  It doesn't show the tree view of the various cluster related resources(same as current behaviour for TKC)

Signed-off-by: Prem Kumar Kalle pkalle@vmware.com

What this PR does / why we need it

This PR fixes the DescribeCluster API to support the Classy clusters in TKGS and return the cluster details. However it doesn't return the cluster related objects that were used to show the tree view in "tanzu cluster get" command.

Which issue(s) this PR fixes

Fixes #3032

Describe testing done for PR

Unit tested and tested locally on TKGS testbed and it was successful.

❯ tanzu cluster get prem-cc01 -n ns01
  NAME       NAMESPACE  STATUS   CONTROLPLANE  WORKERS  KUBERNETES        ROLES   TKR
  prem-cc01  ns01       running  1/1           1/1      v1.23.8+vmware.2  <none>  v1.23.8---vmware.2-tkg.1-zshippable

Release note

 Fixed "tanzu cluster get" command to return Classy cluster details on TKGS

Additional information

Special notes for your reviewer

[github-actions]

Cluster Generation A/B Results:
https://storage.googleapis.com/tkg-clustergen/3049/20220801222346/clustergen.diff.txt
Author/reviewers:
Please review to verify that the effects on the generated cluster configurations are exactly what the PR intended, and give a thumbs-up if so.

[anujc25]

Looks good

[tenczar]

LGTM

[tenczar]

LGTM

[codecov]

Codecov Report

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[github-actions]

Cluster Generation A/B Results:
https://storage.googleapis.com/tkg-clustergen/3049/20220802171846/clustergen.diff.txt
Author/reviewers:
Please review to verify that the effects on the generated cluster configurations are exactly what the PR intended, and give a thumbs-up if so.

[github-actions]

Cluster Generation A/B Results:
https://storage.googleapis.com/tkg-clustergen/3049/20220802173109/clustergen.diff.txt
Author/reviewers:
Please review to verify that the effects on the generated cluster configurations are exactly what the PR intended, and give a thumbs-up if so.

[github-actions]

Cluster Generation A/B Results:
https://storage.googleapis.com/tkg-clustergen/3049/20220802232819/clustergen.diff.txt
Author/reviewers:
Please review to verify that the effects on the generated cluster configurations are exactly what the PR intended, and give a thumbs-up if so.