use const instead the string

[pengbinbin1]

What type of PR is this?

/kind feature

What this PR does / why we need it:

I think const is better than a string

Which issue(s) this PR fixes:

Fixes #

Special notes for your reviewer:

Does this PR introduce a user-facing change?

NONE

-->

other Note

[openyurt-bot]

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In response to this:

What type of PR is this?

/kind feature

What this PR does / why we need it:

I think const is better than a string

Which issue(s) this PR fixes:

Fixes #

Special notes for your reviewer:

Does this PR introduce a user-facing change?

NONE

-->

other Note

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.

[openyurt-bot]

Welcome @pengbinbin1! It looks like this is your first PR to openyurtio/openyurt 🎉

[pengbinbin1]

/assign @rambohe-ch

[rambohe-ch]

@pengbinbin1 Thank you for raising pull request. I think it's not reasonable to add envs into yurt-hub-cfg configmap, because yurt-hub-cfg configmap is used by yurthub component, not by yurtctl tool.

@adamzhoul Do you have any comments about this pull request?

[pengbinbin1]

@pengbinbin1: GitHub didn't allow me to assign the following users: your_reviewer.

Note that only openyurtio members, repo collaborators and people who have commented on this issue/PR can be assigned. Additionally, issues/PRs can only have 10 assignees at the same time. For more information please see the contributor guide

@pengbinbin1 Thank you for raising pull request. I think it's not reasonable to add envs into yurt-hub-cfg configmap, because yurt-hub-cfg configmap is used by yurthub component, not by yurtctl tool.

@adamzhoul Do you have any comments about this pull request?

OK , i have moved the envs into the util.go

[openyurt-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: pengbinbin1, rambohe-ch

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[rambohe-ch]

OK , i have moved the envs into the util.go

@pengbinbin1 It sounds good to move envs definition in util.go.

[rambohe-ch]

/lgtm