Discussion on "Managing database migrations safely in high replicated k8s deployment."

Raul Castellanos · 2022-11-13T12:49:04.137Z

So, you want to run migrations in a cloud native application running on a Kubernetes cluster, and don't die trying huh! ***Well you're in the right place!! *** After I break some applications in terms of database migrations in a multi replica and con...

Hi Raul Castellanos Great article.

I came from Java/Spring Boot/FlyWay world and looking for similar solution.

I will be happy if You can explain me following:

What image is used for DB Schema Migrations? I mean "availability-api-migrations" - is it the same as main application container image but with different startup command? Or is it dedicated for DB Upgrades only image?
I understood that Migration Job will be autodeleted, is it so? If Yes what will happen when you pod will be restarted? Wouldn't initContainers waiting for job (already deleted) fail because wait-for job no more exists?

Thx a lot in advance :)

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Managing database migrations safely in high replicated k8s deployment.

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