cluster: fix cannot use exec command when hostname contain '-'

[nexustar]

What problem does this PR solve?

• fix tiup cluster exec failed when hostname include "-" #1790

What is changed and how it works?

Check List

Tests

• Unit test
• Integration test
• Manual test (add detailed scripts or steps below)
• No code

Code changes

• Has exported function/method change
• Has exported variable/fields change
• Has interface methods change
• Has persistent data change

Side effects

• Possible performance regression
• Increased code complexity
• Breaking backward compatibility

Related changes

• Need to cherry-pick to the release branch
• Need to update the documentation

Release notes:

NONE

[ti-chi-bot]

[REVIEW NOTIFICATION]

This pull request has been approved by:

• AstroProfundis

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[codecov-commenter]

Codecov Report

Merging #1794 (7fe9169) into master (b736fb4) will decrease coverage by 9.20%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master    #1794      +/-   ##
==========================================
- Coverage   52.72%   43.52%   -9.20%     
==========================================
  Files         303      302       -1     
  Lines       34839    34620     -219     
==========================================
- Hits        18368    15068    -3300     
- Misses      14318    17564    +3246     
+ Partials     2153     1988     -165     

Flag	Coverage Δ
cluster	35.23% <100.00%> (-6.09%)	⬇️
dm	24.87% <100.00%> (+0.05%)	⬆️
playground	12.61% <ø> (ø)
tiup	14.40% <ø> (ø)
unittest	?

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

Impacted Files	Coverage Δ
pkg/cluster/manager/exec.go	64.56% <100.00%> (-3.80%)	⬇️
components/dm/ansible/worker.go	0.00% <0.00%> (-100.00%)	⬇️
pkg/meta/err.go	0.00% <0.00%> (-76.19%)	⬇️
pkg/cluster/api/error.go	0.00% <0.00%> (-75.00%)	⬇️
pkg/crypto/rand/passwd.go	0.00% <0.00%> (-75.00%)	⬇️
pkg/cluster/operation/systemd.go	0.00% <0.00%> (-75.00%)	⬇️
pkg/telemetry/node_info.go	0.00% <0.00%> (-70.73%)	⬇️
pkg/cluster/manager/check.go	0.68% <0.00%> (-67.63%)	⬇️
pkg/cluster/task/limits.go	0.00% <0.00%> (-65.22%)	⬇️
pkg/utils/error.go	0.00% <0.00%> (-64.29%)	⬇️
... and 104 more

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[AstroProfundis]

/merge

[ti-chi-bot]

This pull request has been accepted and is ready to merge.

Commit hash: 7fe9169