config: add initial-cluster-token config (#2691) #2922
Merged
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cherry-pick #2691 to release-4.0
What problem does this PR solve?
Fix #2689
What is changed and how it works?
Add config, pass it to etcd.
Check List
Tests
Code changes
Related changes
pingcap/docs
/pingcap/docs-cn
:Release note
initial-cluster-token
configuration to avoid different clusters communicate during bootstrap