add altermanager config

[glkappe]

add alertmanager config

What problem does this PR solve?

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 #1818 (f909413) into master (e475745) will increase coverage by 27.99%.
The diff coverage is n/a.

❗ Current head f909413 differs from pull request most recent head 9ea7b9b. Consider uploading reports for the commit 9ea7b9b to get more accurate results

@@             Coverage Diff             @@
##           master    #1818       +/-   ##
===========================================
+ Coverage   24.16%   52.15%   +27.99%     
===========================================
  Files         280      306       +26     
  Lines       32084    34975     +2891     
===========================================
+ Hits         7750    18238    +10488     
+ Misses      23465    14576     -8889     
- Partials      869     2161     +1292     

Flag	Coverage Δ
cluster	40.29% <ø> (?)
dm	24.54% <ø> (?)
playground	12.79% <ø> (?)
tiup	14.44% <ø> (+0.29%)	⬆️
unittest	21.26% <ø> (ø)

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

Impacted Files	Coverage Δ
components/playground/instance/process.go	92.31% <0.00%> (ø)
pkg/logger/debug.go	16.67% <0.00%> (ø)
components/playground/instance/tiflash_config.go	72.22% <0.00%> (ø)
pkg/cluster/operation/check.go	48.51% <0.00%> (ø)
pkg/cluster/operation/telemetry.go	0.00% <0.00%> (ø)
components/playground/instance/pump.go	0.00% <0.00%> (ø)
components/playground/instance/tidb.go	81.25% <0.00%> (ø)
pkg/cluster/operation/pd_member.go	0.00% <0.00%> (ø)
pkg/cluster/operation/upgrade.go	55.88% <0.00%> (ø)
components/playground/instance/drainer.go	0.00% <0.00%> (ø)
... and 215 more

---

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[AstroProfundis]

/merge

[ti-chi-bot]

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

Commit hash: 9ea7b9b