feat: reintroduce the possibility to specify a replicaCount in values.yaml

[jlandic]

Pull Request

What does this PR do?

• Re-enable the possibility to customize the spec.replicas value of the StatefulSet, a requirement we have for our internal High Availability tests.
• Keep a default value of 1 replica to match the most common uses.

PR checklist

Please check if your PR fulfills the following requirements:

• [x] Does this PR fix an existing issue, or have you listed the changes applied in the PR description (and why they are needed)?
• [x] Have you read the contributing guidelines?
• [x] Have you made sure that the title is accurate and descriptive of the changes?

Thank you so much for contributing to Meilisearch!

[alallema]

bors merge

[jlandic]

[meili-bors[bot]]

Build succeeded:

• check-chart-manifest-in-sync
• helm-tests
• linter

[mike-code]

So just to confirm, even though it's a variable, it shouldn't be used?

[brunoocasali]

So just to confirm, even though it's a variable, it shouldn't be used?

@mike-code Yes, you're right, Meilisearch is not highly available yet, so if you create more replicas you will end up with inconsistencies between the replica's data.