Allow --cgroup to be passed to jailer

[gudmundur]

Description of changes: When setting up the jailer via firecracker-go-sdk I noticed that the SDK only supported setting a WithNumaNode to provide affinity. This change allows the WithNumaNode to be optional, which it is with the jailer. This change also adds a WithCgroupArgs option that will pass the provided arguments through to jailers --cgroup argument.

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

[adityamaru]

👋 I'm wanting the same thing, any reason you decided to not pursue this change? Is there a better way to configure cgroups via the SDK?

[maxdml]

Likewise, would love to see this in.

[gudmundur]

@adityamaru we're using this in production. Waiting for a maintainer here to review this. 😳

[gs0510]

@swagatbora90 @austinvazquez Any chance y'all could look into it? Seems like you folks are the most recent contributors on AWS side. Thank you!

[gs0510]

@sondavidb Thank you so much for taking a look at #574, could I ask you to take a look at this PR as well? Also, it seems like a bunch of folks would also like this PR landed. Thanks again!

[sondavidb]

@gudmundur could you rebase and push so the tests can run again?

[bduffany]

@gudmundur friendly ping - we would like this feature as well. Are you able to rebase as @sondavidb mentioned? or if you don't have time to look at this, @sondavidb would you be open to me opening a new PR with this change?

[sondavidb]

Yeah that should be fine, feel free to ping when it is opened

[bduffany]

@sondavidb Thanks - I sent #600

[sondavidb]

Closed in favor of #600