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Hi everyone !

Intro

Was a long ride since 3 years ago I started my first docker container. Learned a lot from how to build my custom image with a Dockerfile, loading my own configurations files into the container, getting along with docker-compose, traefik and YAML syntax... and and and !

However while tinkering with vaultwarden's config and changing to postgresSQL there's something that's really bugging me...

Questions

• How do you/devs choose which database to use for your/their application? Are there any specific things to take into account before choosing one over another?

• Does consistency in database containers makes sense? I mean, changing all my containers to ONLY postgres (or mariaDB whatever)?

• Does it make sense to update the database image regularly? Or is the application bound to a specific version and will break after any update?

• **Can I switch between one over another even if you/devs choose to use e.g. MariaDB ? Or is it b