Request kube apiserver directly from frontend

[momom-i]

What type of PR is this?

/kind feature

What this PR does / why we need it:

To request directry from frontend

Which issue(s) this PR fixes:

Fixes #95

Special notes for your reviewer:

@sanposhiho Thank you for answering my questions so many times.
After some discussion, we decided to fix the kube-apiserver URL and throw resource change requests directly to that URL.

I tried a few things and confirmed that it returned same results as previous implementation.
Please let me know if there is any part of the behavior that is different from the previous one.

Also I'd like to learn more so correcting my every little mistake is welcome!

/label tide/merge-method-squash

[k8s-ci-robot]

Hi @momom-i. Thanks for your PR.

I'm waiting for a kubernetes-sigs member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

Once the patch is verified, the new status will be reflected by the ok-to-test label.

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[sanposhiho]

/ok-to-test

[sanposhiho]

@momom-i Thanks for a great work. I'll review this in this weekend.

[linux-foundation-easycla]

The committers are authorized under a signed CLA.

• ✅ momom-i (d02f3d8)

[sanposhiho]

/assign

[linux-foundation-easycla]

The committers listed above are authorized under a signed CLA.

• ✅ login: momom-i (64022a3, 5d77960, fe3fa63, 36bb22c, 2e0b50a, 263396a, 0ea96b1, 02b9633, 659a0ce)

[196Ikuchil]

Thank you! I checked the ListViews on my PC and it looks good maybe.

Btw, I get a response 400 Bad request when I have tried to Apply button in WebUI.
If you understand the cause of the error, please fix it? (sorry I didn't check it in detail)

The following is an example of sending an apply request to update a Node's metadata.labels value.

Check in master branch

POST /api/v1/nodes HTTP/1.1
Host: localhost:1212
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:97.0) Gecko/20100101 Firefox/97.0
Accept: application/json, text/plain, */*
Accept-Language: ja,en-US;q=0.7,en;q=0.3
Accept-Encoding: gzip, deflate
Content-Type: application/json;charset=utf-8
Content-Length: 866
Origin: http://localhost:3000
Connection: close
Referer: http://localhost:3000/
Cookie: _ga_F1R581XGNQ=GS1.1.1635005988.2.0.1635005988.0; _ga=GA1.1.1515817854.1635000707; __gads=ID=6aa81bf2479372d8-228a3956d9cc0053:T=1635000710:RT=1635000710:S=ALNI_MZd4pR1Dkc5FmAZmSASTvT9zXLx9g
Sec-Fetch-Dest: empty
Sec-Fetch-Mode: cors
Sec-Fetch-Site: same-site

{"metadata":{"name":"node2","uid":"0be1e7ac-0386-446d-bac2-ae277c4ce621","resourceVersion":"182","creationTimestamp":"2022-03-17T15:26:00Z","labels":{"test":"hoge-override"},"managedFields":[{"manager":"simulator","operation":"Apply","apiVersion":"v1","time":"2022-03-17T15:26:00Z","fieldsType":"FieldsV1","fieldsV1":{"f:metadata":{"f:labels":{"f:test":{}}},"f:spec":{}}}]},"spec":{},"status":{"capacity":{"cpu":"4","memory":"32Gi","pods":"110"},"allocatable":{"cpu":"4","memory":"32Gi","pods":"110"},"phase":"Running","conditions":[{"type":"Ready","status":"True","lastHeartbeatTime":null,"lastTransitionTime":null}],"daemonEndpoints":{"kubeletEndpoint":{"Port":0}},"nodeInfo":{"machineID":"","systemUUID":"","bootID":"","kernelVersion":"","osImage":"","containerRuntimeVersion":"","kubeletVersion":"","kubeProxyVersion":"","operatingSystem":"","architecture":""}}}


HTTP/1.1 200 OK
Access-Control-Allow-Credentials: true
Access-Control-Allow-Origin: http://localhost:3000
Content-Type: application/json; charset=UTF-8
Vary: Origin
Date: Thu, 17 Mar 2022 15:26:27 GMT
Content-Length: 867
Connection: close

{"metadata":{"name":"node2","uid":"0be1e7ac-0386-446d-bac2-ae277c4ce621","resourceVersion":"183","creationTimestamp":"2022-03-17T15:26:00Z","labels":{"test":"hoge-override"},"managedFields":[{"manager":"simulator","operation":"Apply","apiVersion":"v1","time":"2022-03-17T15:26:27Z","fieldsType":"FieldsV1","fieldsV1":{"f:metadata":{"f:labels":{"f:test":{}}},"f:spec":{}}}]},"spec":{},"status":{"capacity":{"cpu":"4","memory":"32Gi","pods":"110"},"allocatable":{"cpu":"4","memory":"32Gi","pods":"110"},"phase":"Running","conditions":[{"type":"Ready","status":"True","lastHeartbeatTime":null,"lastTransitionTime":null}],"daemonEndpoints":{"kubeletEndpoint":{"Port":0}},"nodeInfo":{"machineID":"","systemUUID":"","bootID":"","kernelVersion":"","osImage":"","containerRuntimeVersion":"","kubeletVersion":"","kubeProxyVersion":"","operatingSystem":"","architecture":""}}}

Check in this PR

PATCH /api/v1/nodes/node1?fieldManager=simulator HTTP/1.1
Host: localhost:3131
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:97.0) Gecko/20100101 Firefox/97.0
Accept: application/json, text/plain, */*
Accept-Language: ja,en-US;q=0.7,en;q=0.3
Accept-Encoding: gzip, deflate
Content-Type: application/apply-patch+yaml
Content-Length: 898
Origin: http://localhost:3000
Connection: close
Referer: http://localhost:3000/
Cookie: _ga_F1R581XGNQ=GS1.1.1635005988.2.0.1635005988.0; _ga=GA1.1.1515817854.1635000707; __gads=ID=6aa81bf2479372d8-228a3956d9cc0053:T=1635000710:RT=1635000710:S=ALNI_MZd4pR1Dkc5FmAZmSASTvT9zXLx9g
Sec-Fetch-Dest: empty
Sec-Fetch-Mode: cors
Sec-Fetch-Site: same-site

{"kind":"Node","apiVersion":"v1","metadata":{"name":"node1","uid":"c0046bf6-ab5c-4b2e-b48b-7aae527c984f","resourceVersion":"178","creationTimestamp":"2022-03-17T15:30:42Z","labels":{"test":"hoge-override"},"managedFields":[{"manager":"simulator","operation":"Apply","apiVersion":"v1","time":"2022-03-17T15:30:42Z","fieldsType":"FieldsV1","fieldsV1":{"f:metadata":{"f:labels":{"f:test":{}}},"f:spec":{}}}]},"spec":{},"status":{"capacity":{"cpu":"4","memory":"32Gi","pods":"110"},"allocatable":{"cpu":"4","memory":"32Gi","pods":"110"},"phase":"Running","conditions":[{"type":"Ready","status":"True","lastHeartbeatTime":null,"lastTransitionTime":null}],"daemonEndpoints":{"kubeletEndpoint":{"Port":0}},"nodeInfo":{"machineID":"","systemUUID":"","bootID":"","kernelVersion":"","osImage":"","containerRuntimeVersion":"","kubeletVersion":"","kubeProxyVersion":"","operatingSystem":"","architecture":""}}}


HTTP/1.1 400 Bad Request
Access-Control-Allow-Credentials: true
Access-Control-Allow-Headers: Content-Type, Content-Length, Accept-Encoding, X-CSRF-Token, Authorization, X-Requested-With, If-Modified-Since
Access-Control-Allow-Methods: POST, GET, OPTIONS, PUT, DELETE, PATCH
Access-Control-Allow-Origin: http://localhost:3000
Access-Control-Expose-Headers: Date
Audit-Id: eb725e0f-5e05-4890-8bf1-099864908b5e
Cache-Control: no-cache, private
Content-Type: application/json
X-Kubernetes-Pf-Flowschema-Uid: 1f59e016-5310-4ede-84f5-4dd66b67f6c1
X-Kubernetes-Pf-Prioritylevel-Uid: cbee2024-0a45-497f-b53b-cabceeaff462
Date: Thu, 17 Mar 2022 15:30:56 GMT
Content-Length: 185
Connection: close

{
  "kind": "Status",
  "apiVersion": "v1",
  "metadata": {
    
  },
  "status": "Failure",
  "message": "metadata.managedFields must be nil",
  "reason": "BadRequest",
  "code": 400
}

[momom-i]

Thank you for your check, @196Ikuchil!
I've confirmed it occurred on my local too. It seems caused by changing to server-side apply.
I'll change to remove metadata.managedFields before updating resources later.

[sanposhiho]

just one nits

[sanposhiho]

Thanks for a great work!!!
/lgtm
/approve

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: momom-i, sanposhiho

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