[release-2.11] Add support for user-defined per-keyspace images #609
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This is a backport of #524 into
release-2.11
.The motivation for this backport stems from #608, as explained by @bluecrabs007, the goal of the original PR is to support two versions of MySQL in the cluster instead of using the same one everywhere, this is very useful as we were deprecating MySQL 5.7. However, we deprecated MySQL 5.7 in v18.0.0 (equivalent of v2.11 in vtop) and removed it entirely from the code base in v19.0.0 (equivalent v2.12 in vtop).
We want to backport this to
v2.11
so users can use the feature, and thus migrate more easily, on a version of Vitess where MySQL 5.7 is still supported.This PR is part of #608. It fixes the
Issue 2
described.