Add sharding support to MongoDBContainer

[evanchooly]

Adds sharding support but in its current form may not quite be The Testcontainers Way just yet. Happy to work with whomever to rearrange it to its correct form.

[eddumelendez]

Thanks for your contribution @evanchooly ! I've left some comments. I already have those changes locally but can not push them to your branch (probably because is the main branch 🤔 )

[evanchooly]

Thanks for your contribution @evanchooly ! I've left some comments. I already have those changes locally but can not push them to your branch (probably because is the main branch thinking )

yeah, i noticed that after i pushed. a brainfart. should've done it on a branch. maybe with these edits, i'll move it off to a branch and recreate. but maybe it's not worth the effort.

[evanchooly]

i think i have all the requested changes made.

[eddumelendez]

Check fails because of an unused import. Also, please run ./gradlew :mongodb:check --no-daemon

[evanchooly]

I wasn't clear from your comments earlier if you wanted mongo:6 to be the default or mongo:4.0.4. I just changed it back, though.

[eddumelendez]

@evanchooly thanks! Just last comments before to merge it. Sorry about this, I'd applied them but do not have access.

[eddumelendez]

Thank you so much, @evanchooly ! For your contribution and patience :) This is now merge in main branch and it will be part of the next release.

[evanchooly]

yay! next time i'll use a branch. ;)

[volomas]

Hello @evanchooly
I've run into issue when using testcontainers with this change.
GenericContainer has public "withCommand" method which client can use like so:
var mongoDBContainer = new MongoDBContainer(dockerImageName).withCommand("--replSet", "rs0"); mongoDBContainer.start();
But the thing is that "configure" calls "withCommand", basically erasing everything client has provider.
I my case, I wanted to provide custom replicaSet name, but on this version it's always "docker-rs"

Potential fix: #7164