New PostgreSQL Module for native apps

[oleg-nenashev]

Many C++ applications utilize PostgreSQL in the testing pipelines, it would be nice to have a Testcontainers module for it that simplifies the usage. Since there is a Golang implementation of a module, it might be also a good use-case of creating bridge APIs with Cgo, though a module could be a very simple C library

References

• https://testcontainers.com/modules/postgresql/

[SapiensAnatis]

I would be interested in contributing this as I have a use for it. I've just tried to start it as a generic container, but I think we are missing several APIs:

• a way to set environment variables (for POSTGRES_PASSWORD which is required for the image to start)
• a way to wait on something other than a HTTP port (either for the TCP port to start listening, or even better pg_isready)

Should adding these be tackled under separate issues? I could not find an existing issue for either one.

[oleg-nenashev]

@SapiensAnatis having separate issues would be nice but not necessary. If you submit changes in a single patch, I can get them landed and have changelings polished manually