Container options, especially shm-size

[frankhommers]

I am running postgres in a container but I don't know what to set the container limits exactly to.

I'd like to see that pg_tune also recommends something for the shm-size.

Inspiration:

• https://stackoverflow.com/a/65731661
• https://blog.hasanbul.li/2021/03/03/changing-shm-size-for-postgresql-in-a-docker-container/

This might be out of scope, but I think it would be very beneficial to people running it in a container.
I am also not sure yet on how to calculate the best value for this yet.

[le0pard]

Just provide shm_size same value as have shared_buffers. What issue with such approach?

[frankhommers]

Is that the only logic needed? I am really not confident about that. But you might be right.
(Maybe add an auto generated comment behind it then to say so ;-) ).

[le0pard]

Tuning PostgreSQL in docker is out of scope for this tool

[frankhommers]

Too bad, it would be a nice addition. A lot of people are running it that way.