feat: provide config option for yurtadm

[YTGhost]

What type of PR is this?

/kind feature

What this PR does / why we need it:

Which issue(s) this PR fixes:

Fixes #1448

Special notes for your reviewer:

Does this PR introduce a user-facing change?

other Note

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In response to this:

What type of PR is this?

/kind feature

What this PR does / why we need it:

Which issue(s) this PR fixes:

Fixes #1448

Special notes for your reviewer:

Does this PR introduce a user-facing change?

other Note

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[sonarcloud]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
1 Code Smell

No Coverage information
0.0% Duplication

[codecov]

Codecov Report

Merging #1547 (4f35efa) into master (c3cf90b) will increase coverage by 0.00%.
The diff coverage is 66.66%.

@@           Coverage Diff           @@
##           master    #1547   +/-   ##
=======================================
  Coverage   50.85%   50.86%           
=======================================
  Files         133      133           
  Lines       15852    15858    +6     
=======================================
+ Hits         8062     8066    +4     
- Misses       7045     7047    +2     
  Partials      745      745           

Flag	Coverage Δ
unittests	50.86% <66.66%> (+<0.01%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
pkg/yurtadm/cmd/join/join.go	61.17% <66.66%> (+0.12%)	⬆️

[rambohe-ch]

/lgtm

[openyurt-bot]

[APPROVALNOTIFIER] This PR is APPROVED

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

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