feat: add command clusteradm get placements

[ycyaoxdu]

Signed-off-by: ycyaoxdu [email protected]

[ycyaoxdu]

example output:

root@yuchen clusteradm [feat] $ clusteradm get placements
NAME                   STATUS   REASON                  SELETEDCLUSTERS
placement-policy-pod   True     AllDecisionsScheduled   1

[ycyaoxdu]

#133 #163

[qiujian16]

we might want to show more details, such as the clusters in the related decisions

[ycyaoxdu]

use a slice of cluster names to replace the number

NAME                   STATUS   REASON                  SELETEDCLUSTERS
placement-policy-pod   True     AllDecisionsScheduled   [cluster1]

[qiujian16]

/hold

[ycyaoxdu]

➜  clusteradm git:(feat/get-placement) ✗ clusteradm get placements
<Placement>
└── placement1
    └── <Namespace>: default
    └── <ClusterSet>: [default]
    └── <Status>
    │   ├── <Conditions>
    │   │   ├── PlacementSatisfied -> true
    │   │   ├── PlacementMisconfigured -> unknown
    │   ├── <Number of Selected Clusters>: 2
    └── <PlacementDecision>
        └── cluster1
        └── cluster2
➜  clusteradm git:(feat/get-placement) ✗ clusteradm get placements -o table
NAMESPACE   NAME         STATUS   REASON                  SELETEDCLUSTERS
default     placement1   True     AllDecisionsScheduled   [cluster1 cluster2]

@qiujian16 PTAL

[qiujian16]

should we print table by default or tree by default? I think we are not quite consistent on other commands.

[ycyaoxdu]

should we print table by default or tree by default? I think we are not quite consistent on other commands.

@qiujian16 maybe we should use tree as the default get output format? some command can not print as table, like hub-info, klusterlet-info , token.

[qiujian16]

some may not have tree format, like get clusters? Or we should also change get clusters default format

[ycyaoxdu]

should we print table by default or tree by default? I think we are not quite consistent on other commands.

currently i've set tree to default. i will

ok, will do this in #174

[qiujian16]

/approve
/lgtm

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: qiujian16, ycyaoxdu

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[ycyaoxdu]

/unhold