add port-forward logic with PortForward and ClusterPortForward type

[nikola-jokic]

What type of PR is this?

/kind feature

Which issue(s) this PR fixes:

Fixes #216

Special notes for your reviewer:

Not sure exactly how to test this change so I am creating this as a draft for further comments ☺️ I was able to fake it by passing --config with configuration from the issue

Does this PR introduce a user-facing change?

Add port-forward logic with PortForward and ClusterPortForward type

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[k8s-ci-robot]

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[k8s-ci-robot]

Hi @nikola-jokic. Thanks for your PR.

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[wzshiming]

/ok-to-test

[nikola-jokic]

/retest

[nikola-jokic]

I tried to figure out why are tests failing, but when I try them on the main branch, the same output is shown.
Should that be a separate issue or is there something I can do?

[wzshiming]

I tried to figure out why are tests failing, but when I try them on the main branch, the same output is shown. Should that be a separate issue or is there something I can do?

It doesn't seem to be an effect of this work, so you can ignore it for now.

[wzshiming]

Based on my patch of comments, following these steps seems to be working.

IMAGE_PREFIX=local make build build-image
./bin/$(go env GOOS)/$(go env GOARCH)/kwokctl create cluster --config port-forwrd.yaml

kubectl config use-context kwok-kwok
kubectl apply -f ./test/kwokctl/fake-node.yaml
kubectl apply -f ./test/kwokctl/fake-deployment.yaml
kubectl port-forward deployment/fake-pod 8080:10247

curl 127.0.0.1:8080

# port-forwrd.yaml
kind: ClusterPortForward
apiVersion: kwok.x-k8s.io/v1alpha1
metadata:
  name: cluster-port-forward-rules
spec:
  forwards:
    - targetPort: 10247
      targetAddress: localhost

[wzshiming]

I would like to make the matching capability a bit more generic, there are 3 other configurations that need to reuse this part, unit tests for this, and e2e just need to test that the features work properly.

[nikola-jokic]

/retest

[wzshiming]

/approve
/lgtm

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: nikola-jokic, wzshiming

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