Add support to riscv64 architecture

[carlosedp]

Bump libraries to be able to build on riscv64 architecture.

Also required bumping netns dependencies on genuinetools/netns#21

[alexellis]

/add label: no-dco

[alexellis]

Hi @carlosedp did you not update Gopkg.toml?

[alexellis]

Re: netns, I'm not sure that @jessfraz is maintaining the project anymore. @crosbymichael offered to help convert over to go-cni 🙏 - that would remove this dependency too.

@carlosedp as far as you know, does go-cni work on RISCV from when you ported K8s over?

[carlosedp]

Hi @carlosedp did you not update Gopkg.toml?

I've ran dep ensure -update golang.org/x/sys and it didn't update that file.

All CNI plugins build fine on Risc-V from source. Containerd also builds with CNI interface and Podman runs fine with the CNI plugins from (https://github.com/containernetworking/plugins).

[alexellis]

Good to hear CNI works fine. Now I need to do the work to move off netns or someone needs to do a PR for it. I have a sample project showing how to use CNI with containerd

[carlosedp]

I'd love to take a look and see if I can do it... if you could point me into the right direction :)

[alexellis]

See how I'm using weave and netns in a prerun hook? This example shows what we'd do instead of that.

https://github.com/alexellis/ctrofb/blob/master/cmd/network.go

[carlosedp]

Closing as this was addressed by PR #18.