[incubator/mysqlha] fix the creation of the replication user

[cpanato]

What this PR does / why we need it:
Fix the issue described here: #5849
Which issue this PR fixes
fixes: #5849

[cpanato]

/assign @mgoodness

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Activing will cause the issue to no longer be considered stale. Thank you for your contributions.

[cpanato]

Waiting for review

[cpanato]

ping @mgoodness
When you have some time can you please review? thanks so much!

if need help to maintain the chart please let me know

[cpanato]

/ok-to-test

[cpanato]

/lint

[mattfarina]

@jpoon @jonhoare Can you please take a look at this PR?

[jpoon]

The only major change I see is that you've wrapped the create-replication-user.sql into a bash script, but I don't quite follow how that will resolve the issue listed in #5849.

[cpanato]

@jpoon I did several tests and after this fix the issue never happen again. without that, it happens most of the time for me.

[davidkarlsen]

@jpoon roll with it? from the logs in the issue the .sql's seems empty for some reason (maybe some tee funkiness?)
At any rate this seems just as clean?
Can you give a yay or nay?
I'll assign it and merge it in a couple of days if I don't hear anything back from you. OK?
/assign

[jpoon]

@davidkarlsen 🚢 it

[davidkarlsen]

/lgtm

[k8s-ci-robot]

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[howudoing]

the issue still exists...

[xiongleio]

the issue still exists...