Merge pull request #48921 from smarterclayton/paging_prototype
Automatic merge from submit-queue (batch tested with PRs 50832, 51119, 51636, 48921, 51712)
Alpha list paging implementation
Design in kubernetes/community#896
Support `?limit=NUMBER`, `?continue=CONTINUATIONTOKEN`, and a `continue` field
on ListMeta and pass through to etcd. Perform minor validation as an example.
```
# first out of three
$ curl http://127.0.0.1:8080/api/v1/namespaces?limit=1
{
"kind": "NamespaceList",
"apiVersion": "v1",
"metadata": {
"selfLink": "/api/v1/namespaces",
"resourceVersion": "146",
"next": "ZGVmYXVsdA"
},
"items": [
{
"metadata": {
"name": "default",
"selfLink": "/api/v1/namespaces/default",
"uid": "f95e1390-6852-11e7-ab03-7831c1b76042",
"resourceVersion": "4",
"creationTimestamp": "2017-07-14T05:12:03Z"
},
"spec": {
"finalizers": [
"kubernetes"
]
},
"status": {
"phase": "Active"
}
}
]
}
...
# last
$ curl "http://127.0.0.1:8080/api/v1/namespaces?limit=1&continue=a3ViZS1wdWJsaWM"
{
"kind": "NamespaceList",
"apiVersion": "v1",
"metadata": {
"selfLink": "/api/v1/namespaces",
"resourceVersion": "145"
},
"items": [
{
"metadata": {
"name": "kube-system",
"selfLink": "/api/v1/namespaces/kube-system",
"uid": "f95e9484-6852-11e7-ab03-7831c1b76042",
"resourceVersion": "5",
"creationTimestamp": "2017-07-14T05:12:03Z"
},
"spec": {
"finalizers": [
"kubernetes"
]
},
"status": {
"phase": "Active"
}
}
]
}
```
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