cluster: add tls support when deploy and scale-out tiflash

[nexustar]

What problem does this PR solve?

• close Support deploy && scale-out TiFlash instance on a TLS-enabled cluster #1578

What is changed and how it works?

• add tls support when deploy and scale-out tiflash

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 #1594 (53444cc) into master (b38df71) will increase coverage by 34.87%.
The diff coverage is 29.62%.

@@             Coverage Diff             @@
##           master    #1594       +/-   ##
===========================================
+ Coverage   15.80%   50.68%   +34.87%     
===========================================
  Files         149      290      +141     
  Lines       15023    26395    +11372     
===========================================
+ Hits         2375    13377    +11002     
+ Misses      12131    10999     -1132     
- Partials      517     2019     +1502     

Flag	Coverage Δ
cluster	43.77% <29.62%> (?)
dm	26.12% <0.00%> (?)
integrate	50.68% <29.62%> (+34.87%)	⬆️
playground	13.50% <0.00%> (?)
tiup	15.74% <0.00%> (-0.06%)	⬇️
unittest	∅ <ø> (∅)

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

Impacted Files	Coverage Δ
pkg/cluster/spec/validate.go	62.95% <ø> (+62.95%)	⬆️
pkg/cluster/spec/tiflash.go	50.81% <26.08%> (+50.81%)	⬆️
pkg/cluster/manager/deploy.go	72.33% <50.00%> (ø)
pkg/cluster/manager/scale_out.go	42.20% <50.00%> (ø)
pkg/repository/store/txn.go	49.66% <0.00%> (-2.02%)	⬇️
components/playground/instance/tiflash_config.go	100.00% <0.00%> (ø)
pkg/cluster/manager/list.go	82.85% <0.00%> (ø)
pkg/cluster/manager/exec.go	70.00% <0.00%> (ø)
components/dm/command/upgrade.go	81.81% <0.00%> (ø)
components/playground/instance/tikv.go	67.85% <0.00%> (ø)
... and 238 more

---

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[AstroProfundis]

LGTM

[AstroProfundis]

/merge

[ti-chi-bot]

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

Commit hash: 53444cc