[kevml]

A docker image is simply packaging. There’s a small, almost always negligible, performance hit. But the value comes in being able to ship a consistent application and configuration pairing. This becomes really valuable when shipping multiple databases for multiple services.

[AdrianB1]

I know what docker does, I never saw a database server deployed in mass. One of my teams manage over 250 database servers, but nobody ever supported the idea of using docker for that (all the servers run on Windows).

Shipping multiple databases for multiple services does not necessarily mean multiple database servers. In the database world I saw large servers with many databases more often than multiple servers of one database each; in the second case it was the vendor laziness (cannot give the name), not than a reasonable business or technical reason. When I asked about it the answer was "we'll consolidate in the next release".

[kevml]

Sure there’s a lot of variables here. If you’re a Windows shop I would not expect a push for docker since it is Linux based. As far as multi-tenant logical databases, that is also highly dependent on workload and failure domains (and significant cost if you’re talking Oracle).