local up install karmada by helm

[chaosi-zju]

What type of PR is this?

/kind feature

What this PR does / why we need it:

• A script using just one command to build multi-clusters by karmada helm chart
• A CI test to install karmada by helm chart

This script can also execute on macOS

Which issue(s) this PR fixes:

Fixes #4305

Special notes for your reviewer:

• if you already has clusters in real environment, please modify hack/local-up-karmada-helm.sh as：

# NEED_CREATE_KIND_CLUSTER customize whether you need to create clusters by kind, if you have clusters already, please unset this option
NEED_CREATE_KIND_CLUSTER=false

# LOAD_IMAGE_IN_ADVANCE if you fetch images in advance and you are using KinD clusters, may be you'd like to load it to KinD in advance too
LOAD_IMAGE_IN_ADVANCE=false

# IMAGE_FROM customize whether you need fetch images in advance, if you don't need, left empty
IMAGE_FROM=""

then, provided your given cluster name and kubeconfig just like:

KARMADA_HOST_NAME="karmada-host"
KARMADA_HOST_KUBECONFIG="${HOME}/.kube/karmada.config"

declare -A PUSH_MODE_MEMBERS
PUSH_MODE_MEMBERS["member1"]="${HOME}/.kube/member1.config"
PUSH_MODE_MEMBERS["member3"]="${HOME}/.kube/member3.config"

declare -A PULL_MODE_MEMBERS
PULL_MODE_MEMBERS["member2"]="${HOME}/.kube/member2.config"

• if you need we to help you create several kind clusters, keep unchanged

---

Execute the script:

hack/local-up-karmada-helm.sh

You will see:

Does this PR introduce a user-facing change?:

none

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All modified and coverable lines are covered by tests ✅

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@@           Coverage Diff           @@
##           master    #4045   +/-   ##
=======================================
  Coverage   31.14%   31.15%           
=======================================
  Files         640      640           
  Lines       44414    44414           
=======================================
+ Hits        13833    13835    +2     
+ Misses      29581    29579    -2     
  Partials     1000     1000           

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[chaosi-zju]

@RainbowMango comments all resolved~

[jwcesign]

Other lgtm

[chaosi-zju]

@jwcesign have a look again~

[chaosi-zju]

CC @RainbowMango ready to merge

by this PR, we can install current code by helm method in CI

[karmada-bot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by:
Once this PR has been reviewed and has the lgtm label, please assign liangyuanpeng, poor12 for approval. For more information see the Kubernetes Code Review Process.

The full list of commands accepted by this bot can be found here.

Needs approval from an approver in each of these files:

• .github/workflows/OWNERS
• charts/OWNERS
• hack/OWNERS

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment

[liangyuanpeng]

/lgtm